When Run 'app' (green triangle): In Device Chooser select Launch emulator and click the button [...] Rigth click on Nexus (or other) click on Duplicate In the O.S. (Android 6.0 example) click change: Clic on Show downloadable system images. Look for armeabi-v7a O.S. and click download. Set this O.S. in the device. Finish, and choose this Device for the emulation.