xml - After moving Android Studio project to a different computer, the app wont run -

i moved project different computer copying flash drive , pasting onto new computer, , when try run app, says "app has stopped".

i did build > clean project, build > build apk. haven't made other changes code, , ran fine on old computer. how fix this?

check build.gradle files , version of sdk think out...for example if current sdk version 25 , copied file has 23 need change 25 make run don't forget sync , clean project