I get the same error, did you find a solution?

Regards

Le vendredi 30 novembre 2018 14:40:57 UTC+1, Osman Zakir a écrit :
>
> I tried to generate project files to build V8 by following the 
> instructions in this blog post on Medium: 
> https://medium.com/dailyjs/how-to-build-v8-on-windows-and-not-go-mad-6347c69aacd4
>  
> .  When I ran the command python tools/dev/v8gen.py x64.release as 
> documented there, I got this error:
>
>> Hint: You can raise verbosity (-vv) to see the output of failed commands.
>> Traceback (most recent call last):
>>   File "tools/dev/v8gen.py", line 304, in <module>
>>     sys.exit(gen.main())
>>   File "tools/dev/v8gen.py", line 298, in main
>>     return self._options.func()
>>   File "tools/dev/v8gen.py", line 166, in cmd_gen
>>     gn_outdir,
>>   File "tools/dev/v8gen.py", line 208, in _call_cmd
>>     stderr=subprocess.STDOUT,
>>   File 
>> "C:\v8\depot_tools\win_tools-2_7_6_bin\python\bin\lib\subprocess.py", line 
>> 573, in check_output
>>     raise CalledProcessError(retcode, cmd, output=output)
>> subprocess.CalledProcessError: Command 
>> '['C:\\v8\\depot_tools\\win_tools-2_7_6_bin\\python\\bin\\python.exe', 
>> '-u', 'tools\\mb\\mb.py', 'gen', '-f', 'infra\\mb\\mb_config.pyl', '-m', 
>> 'developer_default', '-b', 'x64.release', 'out.gn/x64.release']' 
>> returned non-zero exit status 1
>>
> I need some help here. Thanks in advance for any replies and help. I'm 
> using Windows 10 Home, with both Python 2.7 and Python 3.7. The install of 
> the former is placed higher and then I have the depot_tools higher than 
> that (in the PATH variable). 
>

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