Changing package name

I loaded an package with the wrong name. If I try to load an new package with a new name, I get an error:

com.OldComp.OldName ---> com.NewComp.NewName

This upload uses a new package name, "com.NewComp.NewName", but the package name must not change between versions. Please upload a new build with the original package name, "com.OldComp.OldName".

how i can change package name?