Traceback (most recent call last):


 "<string>", line 1, in <module>
AttributeError: module 'channels' has no attribute 'version'

Traceback (most recent call last):


 "C:/msys64/mingw64/lib/python3.6/site-packages\mesonbuild\mesonmain.py", line 365, in run

app.generate()


 "C:/msys64/mingw64/lib/python3.6/site-packages\mesonbuild\mesonmain.py", line 151, in generate

self._generate(env)


 "C:/msys64/mingw64/lib/python3.6/site-packages\mesonbuild\mesonmain.py", line 199, in _generate

intr.run()


 "C:/msys64/mingw64/lib/python3.6/site-packages\mesonbuild\interpreter.py", line 2868, in run

super().run()


 "C:/msys64/mingw64/lib/python3.6/site-packages\mesonbuild\interpreterbase.py", line 171, in run

self.evaluate_codeblock(self.ast, start=1)


 "C:/msys64/mingw64/lib/python3.6/site-packages\mesonbuild\interpreterbase.py", line 193, in evaluate_codeblock

raise e


 "C:/msys64/mingw64/lib/python3.6/site-packages\mesonbuild\interpreterbase.py", line 187, in evaluate_codeblock

self.evaluate_statement(cur)


 "C:/msys64/mingw64/lib/python3.6/site-packages\mesonbuild\interpreterbase.py", line 200, in evaluate_statement

return self.assignment(cur)


 "C:/msys64/mingw64/lib/python3.6/site-packages\mesonbuild\interpreterbase.py", line 659, in assignment

value = self.evaluate_statement(node.value)


 "C:/msys64/mingw64/lib/python3.6/site-packages\mesonbuild\interpreterbase.py", line 198, in evaluate_statement

return self.function_call(cur)


 "C:/msys64/mingw64/lib/python3.6/site-packages\mesonbuild\interpreterbase.py", line 441, in function_call

return self.funcs[func_name](node, self.flatten(posargs), kwargs)


 "C:/msys64/mingw64/lib/python3.6/site-packages\mesonbuild\interpreterbase.py", line 77, in wrapped

return f(s, node_or_state, args, kwargs)


 "C:/msys64/mingw64/lib/python3.6/site-packages\mesonbuild\interpreter.py", line 2185, in func_dependency

dep = dependencies.find_external_dependency(name, self.environment, kwargs)


 "C:/msys64/mingw64/lib/python3.6/site-packages\mesonbuild\dependencies\base.py", line 864, in find_external_dependency

dep = packages[lname](env, kwargs)


 "C:/msys64/mingw64/lib/python3.6/site-packages\mesonbuild\dependencies\misc.py", line 121, in __init__

self.detect_lib_modules()


 "C:/msys64/mingw64/lib/python3.6/site-packages\mesonbuild\dependencies\misc.py", line 237, in detect_lib_modules

return self.detect_lib_modules_win()


 "C:/msys64/mingw64/lib/python3.6/site-packages\mesonbuild\dependencies\misc.py", line 242, in detect_lib_modules_win

comp_ts_version = self.env.detect_cpp_compiler(self.want_cross).get_toolset_version()
AttributeError: 'GnuCPPCompiler' object has no attribute 'get_toolset_version'
