Android Question Moving project to new computer maven com.android.support problem

My old PC crashed. But I had another one with an upto date version of my app and environment.
It compiles without any problem.

I want to copy it to a new pc.
On the new pc I installed the latest version of B4a.
I Exported the project to zip, and unzipped onto the new PC
Copied the android\platforms\android-27 platform
But when I open it I get com.android.support/support-v4 maven artifact not found.
I copied all the libraries from my current working PC to Basic4Android\libraries
I have done 'clean project'

but still the problem is there

can anybody help me?
Best Regards