Android Studio rendering issues because of missing class -

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http://i.gyazo.com/f8e34c7f62ba659a1d9cb7c6a82103f9.png  rendering problem     following classes not found:      - adroid.support.v8.internal.widget.actionbaroverlaylayout

i launched android studio , create new project using api 15 , blank activity, , instantly turns up. can load app fine on phone don't understand issue.

http://i.gyazo.com/56c140be1acb170b2c1812b40e842592.png

there copy of build path, i'm not sure if helpful.

kind regards

i had problem didnt seem affect project keep building , try changing api 21


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