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Error Trying to open the Editor

so i switched from windows to linux and succesfully compiled UE 4 in ubuntu and had it running yesterday no problems but now today when i tried to open my project that i had created when i was on windows i’m getting this error in terminal. The editor wont open now. at first the project launcher screen opened and it said i had to upgrade my project. is there a difference between versions in windows to linux?

http://www.drunkenmonkeyninjastudios.com/images/2016/07/28/Screenshotfrom2016-07-2822-37-32.png