How to build from source?

[robifr]

Constantly got this error.

$ flutter build apk --release


FAILURE: Build failed with an exception.

* What went wrong:
A problem occurred configuring project ':android_package_manager'.
> Could not resolve all files for configuration ':android_package_manager:classpath'.
   > Could not resolve org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.3.72.
     Required by:
         project :android_package_manager > com.android.tools.build:gradle:4.1.3
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build:builder:4.1.3
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build:aaptcompiler:4.1.3
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.lint:lint-gradle-api:27.1.3
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build:gradle-api:4.1.3
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > androidx.databinding:databinding-compiler-common:4.1.3
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build:builder:4.1.3 > com.android.tools.build:builder-model:4.1.3
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build:builder:4.1.3 > com.android.tools:sdk-common:27.1.3
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build:builder:4.1.3 > com.android.tools:common:27.1.3
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build:builder:4.1.3 > com.android.tools.build:manifest-merger:27.1.3       
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build:builder:4.1.3 > com.android.tools.analytics-library:tracker:27.1.3   
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.lint:lint-gradle-api:27.1.3 > com.android.tools.lint:lint-model:27.1.3     
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build:builder:4.1.3 > com.android.tools:sdklib:27.1.3 > com.android.tools:repository:27.1.3
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build:builder:4.1.3 > com.android.tools:sdk-common:27.1.3 > com.android.tools.analytics-library:shared:27.1.3
      > Could not resolve org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.3.72.
         > Could not get resource 'https://repo.maven.apache.org/maven2/org/jetbrains/kotlin/kotlin-stdlib-jdk8/1.3.72/kotlin-stdlib-jdk8-1.3.72.pom'.
            > Could not GET 'https://repo.maven.apache.org/maven2/org/jetbrains/kotlin/kotlin-stdlib-jdk8/1.3.72/kotlin-stdlib-jdk8-1.3.72.pom'.
               > repo.maven.apache.org
   > Could not resolve org.ow2.asm:asm:7.0.
     Required by:
         project :android_package_manager > com.android.tools.build:gradle:4.1.3
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build:builder:4.1.3
      > Could not resolve org.ow2.asm:asm:7.0.
         > Could not get resource 'https://repo.maven.apache.org/maven2/org/ow2/asm/asm/7.0/asm-7.0.pom'.
            > Could not GET 'https://repo.maven.apache.org/maven2/org/ow2/asm/asm/7.0/asm-7.0.pom'.
               > repo.maven.apache.org
   > Could not resolve org.ow2.asm:asm-analysis:7.0.
     Required by:
         project :android_package_manager > com.android.tools.build:gradle:4.1.3
      > Could not resolve org.ow2.asm:asm-analysis:7.0.
         > Could not get resource 'https://repo.maven.apache.org/maven2/org/ow2/asm/asm-analysis/7.0/asm-analysis-7.0.pom'.
            > Could not GET 'https://repo.maven.apache.org/maven2/org/ow2/asm/asm-analysis/7.0/asm-analysis-7.0.pom'.
               > repo.maven.apache.org
   > Could not resolve org.ow2.asm:asm-commons:7.0.
     Required by:
         project :android_package_manager > com.android.tools.build:gradle:4.1.3
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build:builder:4.1.3
      > Could not resolve org.ow2.asm:asm-commons:7.0.
         > Could not get resource 'https://repo.maven.apache.org/maven2/org/ow2/asm/asm-commons/7.0/asm-commons-7.0.pom'.
            > Could not GET 'https://repo.maven.apache.org/maven2/org/ow2/asm/asm-commons/7.0/asm-commons-7.0.pom'.
               > repo.maven.apache.org
   > Could not resolve org.ow2.asm:asm-util:7.0.
     Required by:
         project :android_package_manager > com.android.tools.build:gradle:4.1.3
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build:builder:4.1.3
      > Could not resolve org.ow2.asm:asm-util:7.0.
         > Could not get resource 'https://repo.maven.apache.org/maven2/org/ow2/asm/asm-util/7.0/asm-util-7.0.pom'.
            > Could not GET 'https://repo.maven.apache.org/maven2/org/ow2/asm/asm-util/7.0/asm-util-7.0.pom'.
               > This is usually a temporary error during hostname resolution and means that the local server did not receive a response from an authoritative server (repo.maven.apache.org)
   > Could not resolve net.sf.proguard:proguard-gradle:6.0.3.
     Required by:
         project :android_package_manager > com.android.tools.build:gradle:4.1.3
      > Could not resolve net.sf.proguard:proguard-gradle:6.0.3.
         > Could not get resource 'https://repo.maven.apache.org/maven2/net/sf/proguard/proguard-gradle/6.0.3/proguard-gradle-6.0.3.pom'.
            > Could not GET 'https://repo.maven.apache.org/maven2/net/sf/proguard/proguard-gradle/6.0.3/proguard-gradle-6.0.3.pom'.
               > repo.maven.apache.org
   > Could not resolve org.tensorflow:tensorflow-lite-metadata:0.1.0-rc1.
     Required by:
         project :android_package_manager > com.android.tools.build:gradle:4.1.3
      > Could not resolve org.tensorflow:tensorflow-lite-metadata:0.1.0-rc1.
         > Could not get resource 'https://repo.maven.apache.org/maven2/org/tensorflow/tensorflow-lite-metadata/0.1.0-rc1/tensorflow-lite-metadata-0.1.0-rc1.pom'.
            > Could not GET 'https://repo.maven.apache.org/maven2/org/tensorflow/tensorflow-lite-metadata/0.1.0-rc1/tensorflow-lite-metadata-0.1.0-rc1.pom'.
               > repo.maven.apache.org
   > Could not resolve org.ow2.asm:asm-tree:7.0.
     Required by:
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build:builder:4.1.3
      > Could not resolve org.ow2.asm:asm-tree:7.0.
         > Could not get resource 'https://repo.maven.apache.org/maven2/org/ow2/asm/asm-tree/7.0/asm-tree-7.0.pom'.
            > Could not GET 'https://repo.maven.apache.org/maven2/org/ow2/asm/asm-tree/7.0/asm-tree-7.0.pom'.
               > repo.maven.apache.org
   > Could not resolve it.unimi.dsi:fastutil:7.2.0.
     Required by:
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build:builder:4.1.3
      > Could not resolve it.unimi.dsi:fastutil:7.2.0.
         > Could not get resource 'https://repo.maven.apache.org/maven2/it/unimi/dsi/fastutil/7.2.0/fastutil-7.2.0.pom'.
            > Could not GET 'https://repo.maven.apache.org/maven2/it/unimi/dsi/fastutil/7.2.0/fastutil-7.2.0.pom'.
               > repo.maven.apache.org
   > Could not resolve org.jetbrains.kotlin:kotlin-reflect:1.3.72.
     Required by:
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.lint:lint-gradle-api:27.1.3
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build:builder:4.1.3 > com.android.tools:sdk-common:27.1.3
      > Could not resolve org.jetbrains.kotlin:kotlin-reflect:1.3.72.
         > Could not get resource 'https://repo.maven.apache.org/maven2/org/jetbrains/kotlin/kotlin-reflect/1.3.72/kotlin-reflect-1.3.72.pom'.
            > Could not GET 'https://repo.maven.apache.org/maven2/org/jetbrains/kotlin/kotlin-reflect/1.3.72/kotlin-reflect-1.3.72.pom'.
               > repo.maven.apache.org
   > Could not resolve org.glassfish.jaxb:jaxb-runtime:2.3.1.
     Required by:
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > androidx.databinding:databinding-compiler-common:4.1.3
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build:builder:4.1.3 > com.android.tools:sdklib:27.1.3 > com.android.tools:repository:27.1.3
      > Could not resolve org.glassfish.jaxb:jaxb-runtime:2.3.1.
         > Could not get resource 'https://repo.maven.apache.org/maven2/org/glassfish/jaxb/jaxb-runtime/2.3.1/jaxb-runtime-2.3.1.pom'.
            > Could not GET 'https://repo.maven.apache.org/maven2/org/glassfish/jaxb/jaxb-runtime/2.3.1/jaxb-runtime-2.3.1.pom'.
               > repo.maven.apache.org
   > Could not resolve org.jetbrains.kotlin:kotlin-stdlib:1.3.60.
     Required by:
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build.jetifier:jetifier-core:1.0.0-beta09
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build.jetifier:jetifier-processor:1.0.0-beta09
      > Could not resolve org.jetbrains.kotlin:kotlin-stdlib:1.3.60.
         > Could not get resource 'https://repo.maven.apache.org/maven2/org/jetbrains/kotlin/kotlin-stdlib/1.3.60/kotlin-stdlib-1.3.60.pom'.
            > Could not GET 'https://repo.maven.apache.org/maven2/org/jetbrains/kotlin/kotlin-stdlib/1.3.60/kotlin-stdlib-1.3.60.pom'.
               > repo.maven.apache.org
   > Could not resolve org.ow2.asm:asm:7.0.
     Required by:
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build.jetifier:jetifier-processor:1.0.0-beta09
      > Could not resolve org.ow2.asm:asm:7.0.
         > Could not get resource 'https://repo.maven.apache.org/maven2/org/ow2/asm/asm/7.0/asm-7.0.pom'.
            > Could not GET 'https://repo.maven.apache.org/maven2/org/ow2/asm/asm/7.0/asm-7.0.pom'.
               > repo.maven.apache.org
   > Could not resolve org.ow2.asm:asm-util:7.0.
     Required by:
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build.jetifier:jetifier-processor:1.0.0-beta09
      > Could not resolve org.ow2.asm:asm-util:7.0.
         > Could not get resource 'https://repo.maven.apache.org/maven2/org/ow2/asm/asm-util/7.0/asm-util-7.0.pom'.
            > Could not GET 'https://repo.maven.apache.org/maven2/org/ow2/asm/asm-util/7.0/asm-util-7.0.pom'.
               > This is usually a temporary error during hostname resolution and means that the local server did not receive a response from an authoritative server (repo.maven.apache.org)
   > Could not resolve org.ow2.asm:asm-commons:7.0.
     Required by:
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build.jetifier:jetifier-processor:1.0.0-beta09
      > Could not resolve org.ow2.asm:asm-commons:7.0.
         > Could not get resource 'https://repo.maven.apache.org/maven2/org/ow2/asm/asm-commons/7.0/asm-commons-7.0.pom'.
            > Could not GET 'https://repo.maven.apache.org/maven2/org/ow2/asm/asm-commons/7.0/asm-commons-7.0.pom'.
               > repo.maven.apache.org
   > Could not resolve org.checkerframework:checker-qual:2.11.1.
     Required by:
         project :android_package_manager > org.jetbrains.kotlin:kotlin-gradle-plugin:1.7.10 > com.google.guava:guava:29.0-jre
      > Could not resolve org.checkerframework:checker-qual:2.11.1.
         > Could not get resource 'https://repo.maven.apache.org/maven2/org/checkerframework/checker-qual/2.11.1/checker-qual-2.11.1.pom'.
            > Could not GET 'https://repo.maven.apache.org/maven2/org/checkerframework/checker-qual/2.11.1/checker-qual-2.11.1.pom'.
               > repo.maven.apache.org
   > Could not resolve org.apache.commons:commons-compress:1.12.
     Required by:
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build:builder:4.1.3 > com.android.tools:sdklib:27.1.3
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build:builder:4.1.3 > com.android.tools:sdklib:27.1.3 > com.android.tools:repository:27.1.3
      > Could not resolve org.apache.commons:commons-compress:1.12.
         > Could not get resource 'https://repo.maven.apache.org/maven2/org/apache/commons/commons-compress/1.12/commons-compress-1.12.pom'.
            > Could not GET 'https://repo.maven.apache.org/maven2/org/apache/commons/commons-compress/1.12/commons-compress-1.12.pom'.
               > repo.maven.apache.org
   > Could not resolve org.jetbrains.trove4j:trove4j:20160824.
     Required by:
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build:builder:4.1.3 > com.android.tools:sdk-common:27.1.3
      > Could not resolve org.jetbrains.trove4j:trove4j:20160824.
         > Could not get resource 'https://repo.maven.apache.org/maven2/org/jetbrains/trove4j/trove4j/20160824/trove4j-20160824.pom'.
            > Could not GET 'https://repo.maven.apache.org/maven2/org/jetbrains/trove4j/trove4j/20160824/trove4j-20160824.pom'.
               > repo.maven.apache.org
> Failed to notify project evaluation listener.
   > Could not get unknown property 'android' for project ':android_package_manager' of type org.gradle.api.Project.
   > Could not get unknown property 'android' for project ':android_package_manager' of type org.gradle.api.Project.

* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 4s
Running Gradle task 'assembleRelease'...                            5.6s
[!] Gradle threw an error while downloading artifacts from the network.
Retrying Gradle Build: #1, wait time: 100ms

FAILURE: Build failed with an exception.

* What went wrong:
A problem occurred configuring project ':android_package_manager'.
> Could not resolve all files for configuration ':android_package_manager:classpath'.
   > Could not resolve org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.3.72.
     Required by:
         project :android_package_manager > com.android.tools.build:gradle:4.1.3
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build:builder:4.1.3
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build:aaptcompiler:4.1.3
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.lint:lint-gradle-api:27.1.3
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build:gradle-api:4.1.3
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > androidx.databinding:databinding-compiler-common:4.1.3
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build:builder:4.1.3 > com.android.tools.build:builder-model:4.1.3
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build:builder:4.1.3 > com.android.tools:sdk-common:27.1.3
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build:builder:4.1.3 > com.android.tools:common:27.1.3
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build:builder:4.1.3 > com.android.tools.build:manifest-merger:27.1.3       
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build:builder:4.1.3 > com.android.tools.analytics-library:tracker:27.1.3   
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.lint:lint-gradle-api:27.1.3 > com.android.tools.lint:lint-model:27.1.3
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build:builder:4.1.3 > com.android.tools:sdklib:27.1.3 > com.android.tools:repository:27.1.3
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build:builder:4.1.3 > com.android.tools:sdk-common:27.1.3 > com.android.tools.analytics-library:shared:27.1.3
      > Could not resolve org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.3.72.
         > Could not get resource 'https://repo.maven.apache.org/maven2/org/jetbrains/kotlin/kotlin-stdlib-jdk8/1.3.72/kotlin-stdlib-jdk8-1.3.72.pom'.
            > Could not GET 'https://repo.maven.apache.org/maven2/org/jetbrains/kotlin/kotlin-stdlib-jdk8/1.3.72/kotlin-stdlib-jdk8-1.3.72.pom'.
               > repo.maven.apache.org
   > Could not resolve org.ow2.asm:asm:7.0.
     Required by:
         project :android_package_manager > com.android.tools.build:gradle:4.1.3
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build:builder:4.1.3
      > Could not resolve org.ow2.asm:asm:7.0.
         > Could not get resource 'https://repo.maven.apache.org/maven2/org/ow2/asm/asm/7.0/asm-7.0.pom'.
            > Could not GET 'https://repo.maven.apache.org/maven2/org/ow2/asm/asm/7.0/asm-7.0.pom'.
               > repo.maven.apache.org
   > Could not resolve org.ow2.asm:asm-analysis:7.0.
     Required by:
         project :android_package_manager > com.android.tools.build:gradle:4.1.3
      > Could not resolve org.ow2.asm:asm-analysis:7.0.
         > Could not get resource 'https://repo.maven.apache.org/maven2/org/ow2/asm/asm-analysis/7.0/asm-analysis-7.0.pom'.
            > Could not GET 'https://repo.maven.apache.org/maven2/org/ow2/asm/asm-analysis/7.0/asm-analysis-7.0.pom'.
               > repo.maven.apache.org
   > Could not resolve org.ow2.asm:asm-commons:7.0.
     Required by:
         project :android_package_manager > com.android.tools.build:gradle:4.1.3
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build:builder:4.1.3
      > Could not resolve org.ow2.asm:asm-commons:7.0.
         > Could not get resource 'https://repo.maven.apache.org/maven2/org/ow2/asm/asm-commons/7.0/asm-commons-7.0.pom'.
            > Could not GET 'https://repo.maven.apache.org/maven2/org/ow2/asm/asm-commons/7.0/asm-commons-7.0.pom'.
               > repo.maven.apache.org
   > Could not resolve org.ow2.asm:asm-util:7.0.
     Required by:
         project :android_package_manager > com.android.tools.build:gradle:4.1.3
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build:builder:4.1.3
      > Could not resolve org.ow2.asm:asm-util:7.0.
         > Could not get resource 'https://repo.maven.apache.org/maven2/org/ow2/asm/asm-util/7.0/asm-util-7.0.pom'.
            > Could not GET 'https://repo.maven.apache.org/maven2/org/ow2/asm/asm-util/7.0/asm-util-7.0.pom'.
               > repo.maven.apache.org
   > Could not resolve net.sf.proguard:proguard-gradle:6.0.3.
     Required by:
         project :android_package_manager > com.android.tools.build:gradle:4.1.3
      > Could not resolve net.sf.proguard:proguard-gradle:6.0.3.
         > Could not get resource 'https://repo.maven.apache.org/maven2/net/sf/proguard/proguard-gradle/6.0.3/proguard-gradle-6.0.3.pom'.
            > Could not GET 'https://repo.maven.apache.org/maven2/net/sf/proguard/proguard-gradle/6.0.3/proguard-gradle-6.0.3.pom'.
               > repo.maven.apache.org
   > Could not resolve org.tensorflow:tensorflow-lite-metadata:0.1.0-rc1.
     Required by:
         project :android_package_manager > com.android.tools.build:gradle:4.1.3
      > Could not resolve org.tensorflow:tensorflow-lite-metadata:0.1.0-rc1.
         > Could not get resource 'https://repo.maven.apache.org/maven2/org/tensorflow/tensorflow-lite-metadata/0.1.0-rc1/tensorflow-lite-metadata-0.1.0-rc1.pom'.
            > Could not GET 'https://repo.maven.apache.org/maven2/org/tensorflow/tensorflow-lite-metadata/0.1.0-rc1/tensorflow-lite-metadata-0.1.0-rc1.pom'.
               > repo.maven.apache.org
   > Could not resolve org.ow2.asm:asm-tree:7.0.
     Required by:
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build:builder:4.1.3
      > Could not resolve org.ow2.asm:asm-tree:7.0.
         > Could not get resource 'https://repo.maven.apache.org/maven2/org/ow2/asm/asm-tree/7.0/asm-tree-7.0.pom'.
            > Could not GET 'https://repo.maven.apache.org/maven2/org/ow2/asm/asm-tree/7.0/asm-tree-7.0.pom'.
               > repo.maven.apache.org
   > Could not resolve it.unimi.dsi:fastutil:7.2.0.
     Required by:
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build:builder:4.1.3
      > Could not resolve it.unimi.dsi:fastutil:7.2.0.
         > Could not get resource 'https://repo.maven.apache.org/maven2/it/unimi/dsi/fastutil/7.2.0/fastutil-7.2.0.pom'.
            > Could not GET 'https://repo.maven.apache.org/maven2/it/unimi/dsi/fastutil/7.2.0/fastutil-7.2.0.pom'.
               > repo.maven.apache.org
   > Could not resolve org.jetbrains.kotlin:kotlin-reflect:1.3.72.
     Required by:
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.lint:lint-gradle-api:27.1.3
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build:builder:4.1.3 > com.android.tools:sdk-common:27.1.3
      > Could not resolve org.jetbrains.kotlin:kotlin-reflect:1.3.72.
         > Could not get resource 'https://repo.maven.apache.org/maven2/org/jetbrains/kotlin/kotlin-reflect/1.3.72/kotlin-reflect-1.3.72.pom'.
            > Could not GET 'https://repo.maven.apache.org/maven2/org/jetbrains/kotlin/kotlin-reflect/1.3.72/kotlin-reflect-1.3.72.pom'.
               > repo.maven.apache.org
   > Could not resolve org.glassfish.jaxb:jaxb-runtime:2.3.1.
     Required by:
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > androidx.databinding:databinding-compiler-common:4.1.3
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build:builder:4.1.3 > com.android.tools:sdklib:27.1.3 > com.android.tools:repository:27.1.3
      > Could not resolve org.glassfish.jaxb:jaxb-runtime:2.3.1.
         > Could not get resource 'https://repo.maven.apache.org/maven2/org/glassfish/jaxb/jaxb-runtime/2.3.1/jaxb-runtime-2.3.1.pom'.
            > Could not GET 'https://repo.maven.apache.org/maven2/org/glassfish/jaxb/jaxb-runtime/2.3.1/jaxb-runtime-2.3.1.pom'.
               > repo.maven.apache.org
   > Could not resolve org.jetbrains.kotlin:kotlin-stdlib:1.3.60.
     Required by:
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build.jetifier:jetifier-core:1.0.0-beta09
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build.jetifier:jetifier-processor:1.0.0-beta09
      > Could not resolve org.jetbrains.kotlin:kotlin-stdlib:1.3.60.
         > Could not get resource 'https://repo.maven.apache.org/maven2/org/jetbrains/kotlin/kotlin-stdlib/1.3.60/kotlin-stdlib-1.3.60.pom'.
            > Could not GET 'https://repo.maven.apache.org/maven2/org/jetbrains/kotlin/kotlin-stdlib/1.3.60/kotlin-stdlib-1.3.60.pom'.
               > repo.maven.apache.org
   > Could not resolve org.ow2.asm:asm:7.0.
     Required by:
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build.jetifier:jetifier-processor:1.0.0-beta09
      > Could not resolve org.ow2.asm:asm:7.0.
         > Could not get resource 'https://repo.maven.apache.org/maven2/org/ow2/asm/asm/7.0/asm-7.0.pom'.
            > Could not GET 'https://repo.maven.apache.org/maven2/org/ow2/asm/asm/7.0/asm-7.0.pom'.
               > repo.maven.apache.org
   > Could not resolve org.ow2.asm:asm-util:7.0.
     Required by:
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build.jetifier:jetifier-processor:1.0.0-beta09
      > Could not resolve org.ow2.asm:asm-util:7.0.
         > Could not get resource 'https://repo.maven.apache.org/maven2/org/ow2/asm/asm-util/7.0/asm-util-7.0.pom'.
            > Could not GET 'https://repo.maven.apache.org/maven2/org/ow2/asm/asm-util/7.0/asm-util-7.0.pom'.
               > repo.maven.apache.org
   > Could not resolve org.ow2.asm:asm-commons:7.0.
     Required by:
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build.jetifier:jetifier-processor:1.0.0-beta09
      > Could not resolve org.ow2.asm:asm-commons:7.0.
         > Could not get resource 'https://repo.maven.apache.org/maven2/org/ow2/asm/asm-commons/7.0/asm-commons-7.0.pom'.
            > Could not GET 'https://repo.maven.apache.org/maven2/org/ow2/asm/asm-commons/7.0/asm-commons-7.0.pom'.
               > repo.maven.apache.org
   > Could not resolve org.checkerframework:checker-qual:2.11.1.
     Required by:
         project :android_package_manager > org.jetbrains.kotlin:kotlin-gradle-plugin:1.7.10 > com.google.guava:guava:29.0-jre
      > Could not resolve org.checkerframework:checker-qual:2.11.1.
         > Could not get resource 'https://repo.maven.apache.org/maven2/org/checkerframework/checker-qual/2.11.1/checker-qual-2.11.1.pom'.
            > Could not GET 'https://repo.maven.apache.org/maven2/org/checkerframework/checker-qual/2.11.1/checker-qual-2.11.1.pom'.
               > repo.maven.apache.org
   > Could not resolve org.apache.commons:commons-compress:1.12.
     Required by:
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build:builder:4.1.3 > com.android.tools:sdklib:27.1.3
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build:builder:4.1.3 > com.android.tools:sdklib:27.1.3 > com.android.tools:repository:27.1.3
      > Could not resolve org.apache.commons:commons-compress:1.12.
         > Could not get resource 'https://repo.maven.apache.org/maven2/org/apache/commons/commons-compress/1.12/commons-compress-1.12.pom'.
            > Could not GET 'https://repo.maven.apache.org/maven2/org/apache/commons/commons-compress/1.12/commons-compress-1.12.pom'.
               > repo.maven.apache.org
   > Could not resolve org.jetbrains.trove4j:trove4j:20160824.
     Required by:
         project :android_package_manager > com.android.tools.build:gradle:4.1.3 > com.android.tools.build:builder:4.1.3 > com.android.tools:sdk-common:27.1.3
      > Could not resolve org.jetbrains.trove4j:trove4j:20160824.
         > Could not get resource 'https://repo.maven.apache.org/maven2/org/jetbrains/trove4j/trove4j/20160824/trove4j-20160824.pom'.
            > Could not GET 'https://repo.maven.apache.org/maven2/org/jetbrains/trove4j/trove4j/20160824/trove4j-20160824.pom'.
               > repo.maven.apache.org
> Failed to notify project evaluation listener.
   > Could not get unknown property 'android' for project ':android_package_manager' of type org.gradle.api.Project.
   > Could not get unknown property 'android' for project ':android_package_manager' of type org.gradle.api.Project.

* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 2s
Running Gradle task 'assembleRelease'...                            3.4s
[!] Gradle threw an error while downloading artifacts from the network.
Gradle task assembleRelease failed with exit code 1

[robifr]

finally managed to build

flutter precache --android
flutter build apk --flavor normal -t lib/main.dart