Any clue what this error is after updating?

[Leatherneck]

I installed net 4.5 and ran the updater, it updated and then automatically closed, I ran the updater again and it started to check for updates and once it got to the third step it crashed and this box showed up, tried rebooted and will try to reinstall after posting this but here is the error.

 

[Out]

I installed net 4.5

AB required .NET 4.5.1. Not 4.5.

 

[Leatherneck]

Thank you once again xD fixed ^^