Uploading a file is easy if you see the upload link. I didn’t.

To ensure you see it you have to change the setting in LocalSettings.php

 $wgEnableUploads = true; 

You may get an error **Could not create directory “mwstore://local-backend/local-public/ **and some more alpha characters.  This turned out a simple permission problem. You have to set the permission of your images directory to 777

 chmod 777

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