So after update android studio and gradle getting so many error but now I am stuck on below error msg .
Now below is my gradle file :-
Now if I try to change buildToolsVersion 27.0.3 to 27.1.1 then it shows below error :-
Showing this error as well
- What went wrong: Could not resolve all files for configuration ':app:debugCompileClasspath'.
Could not find support-core-ui.aar (com.android.support:support-core-ui:27.1.1). Searched in the following locations: https://jcenter.bintray.com/com/android/support/support-core-ui/27.1.1/support-core-ui-27.1.1.aar
So I tried so many thing to resolve and Stackover flow question but not resolve my problem.