private void injectViews(final View view) {
    ButterKnife.inject(this, view);
  }
Replace every field annotated with ButterKnife annotations like @InjectView with the proper
value.

@param view to extract each widget injected in the fragment.
app/src/main/java/com/github/pedrovgs/effectiveandroidui/ui/fragment/BaseFragment.java