Display friendly error message when spawning CGI process fails

[GoogleCodeExporter]

See https://github.com/cztomczak/phpdesktop/wiki/Knowledge-Base#error-500-internal-server-error-cannot-spawn-cgi-process-cdocuments-and-settingswwwindexphp-no-such-device-or-address

If you try to run phpdesktop with PHP 5.6 on Windows XP you will get error message like this:

  Error 500: Internal Server Error
  Cannot spawn CGI process [C:\...\phpdesktop\www/index.php]: No such device or address

This can be fixed similarly as in Issue #131 by using CefLoadHandler::OnLoadError.

See also Issue #74 that displays a friendly error message for other case.

Original issue reported on code.google.com by czarek.t...@gmail.com on 7 Oct 2014 at 4:32

[okobsamoht]

hi! i'm having the same problem!

[timint]

I got this error with both the previous version and the v130 test release in Windows 11 24H2. The previous version did work up to a point in time. I suspect it could be related to an update of a .net framework runtime or similar? Any clues?

- WARNING: spawn_process: CreateProcess(php\php-cgi.exe "www\index.php"): 193
- 14:54:51.766 INFO: GET 500 /

Error 500: Internal Server Error
Cannot spawn CGI process [www\/index.php]: No such device or address

[cztomczak]

@timint Try launching php-cgi.exe process manually from command line and see if it throws any errors.