Blank Control Panel (no errors) migrating from 2.5.7 to 3.5.1 on IIS 7.0.

[jannikb]

Hey Guys,

I've got a very strange problem after migrating from 2.5.7 to 3.5.1 on IIS 7.0.

Whilst the frontend is working without any problems, I can login into my Backend but I only get the White screen of death right after.
I tried "maximum" and "development" for error_reporting, setting

Code: Select all

ini_set('display_errors', TRUE); error_reporting(E_ALL);

in the index.php and

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E_ALL & ~E_NOTICE & ~E_STRICT & ~E_DEPRECATED

in my php.ini - nothing gives me any errors.

The problem only exists in the Control Panel, all other Backend sites are working. I also deactivated all third party plugins that could cause problems.

Has anyone of you got a clue what could cause this problem?

Grettings
Jannik

[Per Yngve Berg]

Have you set Error Reporting to 'maximum' in configuration.php?

[jannikb]

Yes, I tried 'maximum' and 'development' as mentioned.