After installed Mediawiki 1.25.3 as module over an old redmine installation, I have some problems on Thumbnail creation. Unfortunately none of the related topic reports a solution suitable for my situation.
Just after installation, I uploaded an image and I receive the following error:
Error creating thumbnail: The system cannot find the path specified Error code: 1
Then I set the temp dir on the LocalSettings.php, and allowed full access to the folder (full control to 'Everyone'):
$wgTmpDirectory = "C:\Bitnami\redmine-2.6.2-0\apps\mediawiki\htdocs\images\temp";
Thus the I receive the following error:
Error creating thumbnail: Unable to save thumbnail to destination
I have tried several solutions, but I was not able to go further.
My OS is a Win 7 32 bit.