[GRASS-dev] Problem starting GRASS GUI - ntpath splitdrive

[Pedro Venâncio]

Hi all,

It seems a local problem here, because I've tested in another machine and
everything works ok.

The strange thing is that both systems are similar, and it works in one,
and not in another.

Now I only get this message:

C:\>grass74
Cleaning up temporary files...
Starting GRASS GIS...
ERROR: Invalid return code from GUI startup script.
Please advise GRASS developers of this error.
Exiting...
Press any key to continue . . .


Running GRASS from the command line, works perfectly:

C:\>grass74 -text
Cleaning up temporary files...
Starting GRASS GIS...
ATENÇÃO: Concurrent mapset locking is not supported on Windows

          __________  ___   __________    _______________
         / ____/ __ \/   | / ___/ ___/   / ____/  _/ ___/
        / / __/ /_/ / /| | \__ \\_  \   / / __ / / \__ \
       / /_/ / _, _/ ___ |___/ /__/ /  / /_/ // / ___/ /
       \____/_/ |_/_/  |_/____/____/   \____/___//____/

Welcome to GRASS GIS 7.4.2
GRASS GIS homepage:                      http://grass.osgeo.org
This version running through:            Command Shell
(C:\WINDOWS\system32\cmd.exe)
Help is available with the command:      g.manual -i
See the licence terms with:              g.version -c
See citation options with:               g.version -x
Start the GUI with:                      g.gui wxpython
When ready to quit enter:                exit

Microsoft Windows [Version 10.0.17134.345]
(c) 2018 Microsoft Corporation. Todos os direitos reservados.

C:\>

And also from QGIS (Processing and GRASS Plugin).

Any clue about what the problem could be?

Thank you very much.

Best regards,
Pedro


Pedro Venâncio <pedrongvenancio  gmail.com> escreveu no dia segunda,
5/11/2018 à(s) 17:28:

> Hi Martin,
>
> I did not have this environment variable set, but I set it and it still
> does not work.
>
> Anyway, I don't remember the last time I used GRASS GUI on this machine,
> but it was about 2 weeks ago.
>
> Then this problem must have resulted from a recent change / update.
>
> Thanks Martin.
>
> Best regards,
> Pedro
>
>
>
> Martin Landa <landa.martin  gmail.com> escreveu no dia segunda, 5/11/2018
> à(s) 16:40:
>
>> Hi,
>>
>> po 5. 11. 2018 v 17:36 odesílatel Pedro Venâncio
>> <pedrongvenancio  gmail.com> napsal:
>> >     os.getenv('HOMEPATH'))
>> >   File "C:\OSGEO4~1\apps\Python27\lib\ntpath.py", line 65, in join
>> >     result_drive, result_path = splitdrive(path)
>> >   File "C:\OSGEO4~1\apps\Python27\lib\ntpath.py", line 115, in
>> splitdrive
>> >     if len(p) > 1:
>> > TypeError: object of type 'NoneType' has no len()
>>
>> it seems that HOMEPATH environmental variable is not defined for your
>> account.
>>
>> > I'm using Windows 10.
>>
>> Based on [1] HOMEPATH should be defined on Windows 10 too.
>>
>> Haven't you unset HOMEPATH for your account by chance? Try to set
>> HOMEPATH pointing to your home directory.
>>
>> Martin
>>
>> [1]
>> https://www.tenforums.com/tutorials/3234-environment-variables-windows-10-a.html
>>
>> --
>> Martin Landa
>> http://geo.fsv.cvut.cz/gwiki/Landa
>> http://gismentors.cz/mentors/landa
>>
>
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