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ERROR: start symbol translation_unit_or_empty undefined #291

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@zdenop

Description

@zdenop

When I run pyinstaller3.4 on windows 10 64bit (python3.6 64bit) I got this error (pycparser 2.19):

C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:20: RuntimeWarning: parsing methods must have __doc__ for pycparser to work properly
  class CParser(PLYParser):
WARNING: There was a problem loading the table file: KeyError('p_direct_id_declarator_1',)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:513: No documentation string specified in function 'p_translation_unit_or_empty' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:522: No documentation string specified in function 'p_translation_unit_1' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:529: No documentation string specified in function 'p_translation_unit_2' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:541: No documentation string specified in function 'p_external_declaration_1' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:546: No documentation string specified in function 'p_external_declaration_2' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:551: No documentation string specified in function 'p_external_declaration_3' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:557: No documentation string specified in function 'p_external_declaration_4' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:562: No documentation string specified in function 'p_pp_directive' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:568: No documentation string specified in function 'p_pppragma_directive' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:580: No documentation string specified in function 'p_function_definition_1' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:597: No documentation string specified in function 'p_function_definition_2' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:608: No documentation string specified in function 'p_statement' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:661: No documentation string specified in function 'p_pragmacomp_or_statement' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:681: No documentation string specified in function 'p_decl_body' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:741: No documentation string specified in function 'p_declaration' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:750: No documentation string specified in function 'p_declaration_list' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:761: No documentation string specified in function 'p_declaration_specifiers_no_type_1' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:766: No documentation string specified in function 'p_declaration_specifiers_no_type_2' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:771: No documentation string specified in function 'p_declaration_specifiers_no_type_3' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:777: No documentation string specified in function 'p_declaration_specifiers_1' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:782: No documentation string specified in function 'p_declaration_specifiers_2' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:787: No documentation string specified in function 'p_declaration_specifiers_3' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:792: No documentation string specified in function 'p_declaration_specifiers_4' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:797: No documentation string specified in function 'p_declaration_specifiers_5' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:802: No documentation string specified in function 'p_declaration_specifiers_6' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:808: No documentation string specified in function 'p_storage_class_specifier' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:817: No documentation string specified in function 'p_function_specifier' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:822: No documentation string specified in function 'p_type_specifier_no_typeid' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:838: No documentation string specified in function 'p_type_specifier' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:846: No documentation string specified in function 'p_type_qualifier' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:853: No documentation string specified in function 'p_init_declarator_list' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:862: No documentation string specified in function 'p_init_declarator' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:868: No documentation string specified in function 'p_id_init_declarator_list' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:874: No documentation string specified in function 'p_id_init_declarator' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:882: No documentation string specified in function 'p_specifier_qualifier_list_1' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:887: No documentation string specified in function 'p_specifier_qualifier_list_2' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:892: No documentation string specified in function 'p_specifier_qualifier_list_3' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:897: No documentation string specified in function 'p_specifier_qualifier_list_4' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:906: No documentation string specified in function 'p_struct_or_union_specifier_1' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:917: No documentation string specified in function 'p_struct_or_union_specifier_2' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:935: No documentation string specified in function 'p_struct_or_union_specifier_3' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:954: No documentation string specified in function 'p_struct_or_union' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:962: No documentation string specified in function 'p_struct_declaration_list' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:971: No documentation string specified in function 'p_struct_declaration_1' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1009: No documentation string specified in function 'p_struct_declaration_2' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1014: No documentation string specified in function 'p_struct_declaration_3' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1019: No documentation string specified in function 'p_struct_declarator_list' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1028: No documentation string specified in function 'p_struct_declarator_1' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1033: No documentation string specified in function 'p_struct_declarator_2' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1042: No documentation string specified in function 'p_enum_specifier_1' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1048: No documentation string specified in function 'p_enum_specifier_2' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1053: No documentation string specified in function 'p_enum_specifier_3' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1059: No documentation string specified in function 'p_enumerator_list' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1072: No documentation string specified in function 'p_enumerator' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1088: No documentation string specified in function 'p_declarator' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1200: No documentation string specified in function 'p_pointer' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1230: No documentation string specified in function 'p_type_qualifier_list' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1236: No documentation string specified in function 'p_parameter_type_list' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1245: No documentation string specified in function 'p_parameter_list' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1265: No documentation string specified in function 'p_parameter_declaration_1' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1277: No documentation string specified in function 'p_parameter_declaration_2' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1308: No documentation string specified in function 'p_identifier_list' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1318: No documentation string specified in function 'p_initializer_1' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1323: No documentation string specified in function 'p_initializer_2' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1332: No documentation string specified in function 'p_initializer_list' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1344: No documentation string specified in function 'p_designation' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1352: No documentation string specified in function 'p_designator_list' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1358: No documentation string specified in function 'p_designator' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1364: No documentation string specified in function 'p_type_name' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1375: No documentation string specified in function 'p_abstract_declarator_1' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1383: No documentation string specified in function 'p_abstract_declarator_2' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1388: No documentation string specified in function 'p_abstract_declarator_3' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1398: No documentation string specified in function 'p_direct_abstract_declarator_1' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1402: No documentation string specified in function 'p_direct_abstract_declarator_2' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1413: No documentation string specified in function 'p_direct_abstract_declarator_3' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1422: No documentation string specified in function 'p_direct_abstract_declarator_4' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1433: No documentation string specified in function 'p_direct_abstract_declarator_5' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1442: No documentation string specified in function 'p_direct_abstract_declarator_6' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1452: No documentation string specified in function 'p_direct_abstract_declarator_7' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1463: No documentation string specified in function 'p_block_item' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1471: No documentation string specified in function 'p_block_item_list' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1478: No documentation string specified in function 'p_compound_statement_1' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1484: No documentation string specified in function 'p_labeled_statement_1' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1488: No documentation string specified in function 'p_labeled_statement_2' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1492: No documentation string specified in function 'p_labeled_statement_3' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1496: No documentation string specified in function 'p_selection_statement_1' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1500: No documentation string specified in function 'p_selection_statement_2' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1504: No documentation string specified in function 'p_selection_statement_3' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1509: No documentation string specified in function 'p_iteration_statement_1' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1513: No documentation string specified in function 'p_iteration_statement_2' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1517: No documentation string specified in function 'p_iteration_statement_3' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1521: No documentation string specified in function 'p_iteration_statement_4' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1526: No documentation string specified in function 'p_jump_statement_1' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1530: No documentation string specified in function 'p_jump_statement_2' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1534: No documentation string specified in function 'p_jump_statement_3' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1538: No documentation string specified in function 'p_jump_statement_4' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1544: No documentation string specified in function 'p_expression_statement' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1551: No documentation string specified in function 'p_expression' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1564: No documentation string specified in function 'p_typedef_name' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1568: No documentation string specified in function 'p_assignment_expression' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1582: No documentation string specified in function 'p_assignment_operator' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1597: No documentation string specified in function 'p_constant_expression' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1601: No documentation string specified in function 'p_conditional_expression' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1610: No documentation string specified in function 'p_binary_expression' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1636: No documentation string specified in function 'p_cast_expression_1' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1640: No documentation string specified in function 'p_cast_expression_2' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1644: No documentation string specified in function 'p_unary_expression_1' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1648: No documentation string specified in function 'p_unary_expression_2' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1655: No documentation string specified in function 'p_unary_expression_3' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1664: No documentation string specified in function 'p_unary_operator' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1674: No documentation string specified in function 'p_postfix_expression_1' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1678: No documentation string specified in function 'p_postfix_expression_2' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1682: No documentation string specified in function 'p_postfix_expression_3' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1688: No documentation string specified in function 'p_postfix_expression_4' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1697: No documentation string specified in function 'p_postfix_expression_5' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1703: No documentation string specified in function 'p_postfix_expression_6' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1709: No documentation string specified in function 'p_primary_expression_1' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1713: No documentation string specified in function 'p_primary_expression_2' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1717: No documentation string specified in function 'p_primary_expression_3' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1723: No documentation string specified in function 'p_primary_expression_4' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1727: No documentation string specified in function 'p_primary_expression_5' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1735: No documentation string specified in function 'p_offsetof_member_designator' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1750: No documentation string specified in function 'p_argument_expression_list' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1760: No documentation string specified in function 'p_identifier' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1764: No documentation string specified in function 'p_constant_1' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1773: No documentation string specified in function 'p_constant_2' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1790: No documentation string specified in function 'p_constant_3' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1802: No documentation string specified in function 'p_unified_string_literal' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1813: No documentation string specified in function 'p_unified_wstring_literal' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1824: No documentation string specified in function 'p_brace_open' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1830: No documentation string specified in function 'p_brace_close' (ignored)
WARNING: C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py:1836: No documentation string specified in function 'p_empty' (ignored)
ERROR: start symbol translation_unit_or_empty undefined
Traceback (most recent call last):
  File "C:\Program Files\Python36\lib\runpy.py", line 183, in _run_module_as_main
    mod_name, mod_spec, code = _get_module_details(mod_name, _Error)
  File "C:\Program Files\Python36\lib\runpy.py", line 142, in _get_module_details
    return _get_module_details(pkg_main_name, error)
  File "C:\Program Files\Python36\lib\runpy.py", line 109, in _get_module_details
    __import__(pkg_name)
  File "C:\Program Files\Python36\lib\site-packages\PyInstaller\__init__.py", line 16, in <module>
    from . import compat
  File "C:\Program Files\Python36\lib\site-packages\PyInstaller\compat.py", line 212, in <module>
    from win32ctypes.pywin32 import pywintypes  # noqa: F401
  File "C:\Program Files\Python36\lib\site-packages\win32ctypes\pywin32\__init__.py", line 11, in <module>
    from win32ctypes.pywin32 import win32api
  File "C:\Program Files\Python36\lib\site-packages\win32ctypes\pywin32\win32api.py", line 12, in <module>
    from win32ctypes.core import (
  File "<frozen importlib._bootstrap>", line 971, in _find_and_load
  File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 656, in _load_unlocked
  File "<frozen importlib._bootstrap>", line 626, in _load_backward_compatible
  File "C:\Program Files\Python36\lib\site-packages\win32ctypes\core\__init__.py", line 36, in load_module
    module = importlib.import_module(self.redirect_module)
  File "C:\Program Files\Python36\lib\importlib\__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "C:\Program Files\Python36\lib\site-packages\win32ctypes\core\cffi\_common.py", line 12, in <module>
    from ._util import ffi
  File "C:\Program Files\Python36\lib\site-packages\win32ctypes\core\cffi\_util.py", line 17, in <module>
    ffi.set_unicode(True)
  File "C:\Program Files\Python36\lib\site-packages\cffi\api.py", line 540, in set_unicode
    self.cdef("typedef wchar_t TBYTE;"
  File "C:\Program Files\Python36\lib\site-packages\cffi\api.py", line 107, in cdef
    self._cdef(csource, override=override, packed=packed)
  File "C:\Program Files\Python36\lib\site-packages\cffi\api.py", line 121, in _cdef
    self._parser.parse(csource, override=override, **options)
  File "C:\Program Files\Python36\lib\site-packages\cffi\cparser.py", line 315, in parse
    self._internal_parse(csource)
  File "C:\Program Files\Python36\lib\site-packages\cffi\cparser.py", line 320, in _internal_parse
    ast, macros, csource = self._parse(csource)
  File "C:\Program Files\Python36\lib\site-packages\cffi\cparser.py", line 276, in _parse
    ast = _get_parser().parse(fullcsource)
  File "C:\Program Files\Python36\lib\site-packages\cffi\cparser.py", line 45, in _get_parser
    _parser_cache = pycparser.CParser()
  File "C:\Program Files\Python36\lib\site-packages\pycparser\c_parser.py", line 117, in __init__
    outputdir=taboutputdir)
  File "C:\Program Files\Python36\lib\site-packages\pycparser\ply\yacc.py", line 3352, in yacc
    raise YaccError('Unable to build parser')
pycparser.ply.yacc.YaccError: Unable to build parser

How to fix it?
The error draws me crazy because pycparser is installed as PyMySQL dependency (or maybe as cffi 1.11.5) dependency) and it blocks me to create new version of my app...

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