Android Data Binding: missing DataBinderMapper class

Question

java.lang.NoClassDefFoundError: android.databinding.DataBinderMapper
        at android.databinding.DataBindingUtil.(DataBindingUtil.java:31)
        a         


        

Answer 1

Make sure that ALL your modules that use DataBinding have it enabled. This was the reason I got that exception.

android {
....
dataBinding {
    enabled = true
}
}