I've been stuck on this, checked the official guidance, etc. Any tutorials/what are the steps to change from ActionBar to ActionBarCompat (for the Toolbar and support of older versions? I've imported appcompat-v7:21.0.+, tried

getSupportActionBar(); and

Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar_actionbar); setSupportActionBar(toolbar);

changed theme to appcompat theme in styles... Any common errors to note or ideas?

Keep getting this kind of error: