If you get the error "Error generating thumbnail / Error creating thumbnail: Unable to save thumbnail to destination" and the $wgUploadDirectory directory has the correct permissions (at all levels), check that $wgTmpDirectory actually exists. (Unlike some path variables such as $wgCacheDirectory, $wgTmpDirectory is not created at runtime.) A more detailed error message may be available if you turn on logging with $wgDebugLogFile.
Only somebody with server access can fix this. Either permissions are set wrong or the directories are not set correctly. Would be great to do so we can clean up hitchwiki a bit :)
tillwenke
commented
10 months ago
When trying to add a picture on a random hitchwiki page, the following error message appears:
Error creating thumbnail: Unable to save thumbnail to destinationA quick search in the Mediawiki Manual throws this out:
Only somebody with server access can fix this. Either permissions are set wrong or the directories are not set correctly. Would be great to do so we can clean up hitchwiki a bit :)