Unreal engine 4.5 does't start [DDC]

hello everyone my name is francesco I am 17 years old and I’m Italian.
I am new to this community study java and c ++ but my great passion is design.
this is my configuration:

intel core i7 4770k
8gb ram
r9 290x amd catalyst 14.9

when I start the editor I get an error and tells me to change the parameters [derivedDataBackendGraph] like in the screen i have posted.
thanks to all !!

Welcome to the forums!

Could you post this at AnswerHub so that you can get help faster please? Also make a search on this error in AnswerHub; it is likely that someone else might have run into it and found a solution already.

Thanks!

ok thanks!!:cool: