Emulator VM shuts down (mac-Android Studio)

Emulator Nexus 6 API23 says... 12-28 15:21:26.327 1995-1995/com.xxxxxtreehouse.funfacts W/System: ClassLoader referenced unknown path: /data/app/com.xxxxxtreehouse.funfacts-1/lib/x86 12-28 15:21:26.371 1995-1995/com.xxxtreehouse.funfacts D/AndroidRuntime: Shutting down VM 12-28 15:21:26.372 1995-1995/com.xxxxxtreehouse.funfacts E/AndroidRuntime: FATAL EXCEPTION: main ( It says a lot more) Process: com.xxxtreehouse.funfacts, PID: 1995 java.lang.RuntimeException: Unable to start activity ComponentInfo{com.xxxtreehouse.funfacts/com.xxxtreehouse.funfacts.FunFactsActivity}: android.view.InflateException: Binary XML file line #2: Binary XML file line #2: Error inflating class android.support.design.widget.CoordinatorLayout at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2416) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) at android.app.ActivityThread.-wrap11(ActivityThread.java) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:148) at android.app.ActivityThread.main(ActivityThread.java:5417) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) Caused by: android.view.InflateException: Binary XML file line #2: Binary XML file line #2: Error inflating class android.support.design.widget.CoordinatorLayout at android.view.LayoutInflater.inflate(LayoutInflater.java:539) at android.view.LayoutInflater.inflate(LayoutInflater.java:423) at android.view.LayoutInflater.inflate(LayoutInflater.java:374) at com.android.internal.policy.PhoneWindow.setContentView(PhoneWindow.java:393) at android.app.Activity.setContentView(Activity.java:2166) at com.xxxtreehouse.funfacts.FunFactsActivity.onCreate(FunFactsActivity.java:19) at android.app.Activity.performCreate(Activity.java:6237) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)  at android.app.ActivityThread.-wrap11(ActivityThread.java)  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)  at android.os.Handler.dispatchMessage(Handler.java:102)  at android.os.Looper.loop(Looper.java:148)  at android.app.ActivityThread.main(ActivityThread.java:5417)  at java.lang.reflect.Method.invoke(Native Method)  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)  Caused by: android.view.InflateException: Binary XML file line #2: Error inflating class android.support.design.widget.CoordinatorLayout at android.view.LayoutInflater.createView(LayoutInflater.java:645) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:764) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:704) at android.view.LayoutInflater.inflate(LayoutInflater.java:492) at android.view.LayoutInflater.inflate(LayoutInflater.java:423)  at android.view.LayoutInflater.inflate(LayoutInflater.java:374)  at com.android.internal.policy.PhoneWindow.setContentView(PhoneWindow.java:393)  at android.app.Activity.setContentView(Activity.java:2166)  at com.xxxtreehouse.funfacts.FunFactsActivity.onCreate(FunFactsActivity.java:19)  at android.app.Activity.performCreate(Activity.java:6237)  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107)  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369)  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)  at android.app.ActivityThread.-wrap11(ActivityThread.java)  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)  at android.os.Handler.dispatchMessage(Handler.java:102)  at android.os.Looper.loop(Looper.java:148)  at android.app.ActivityThread.main(ActivityThread.java:5417)  at java.lang.reflect.Method.invoke(Native Method)  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)  Caused by: java.lang.reflect.InvocationTargetException at java.lang.reflect.Constructor.newInstance(Native Method) at android.view.LayoutInflater.createView(LayoutInflater.java:619) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:764)  at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:704)  at android.view.LayoutInflater.inflate(LayoutInflater.java:492)  at android.view.LayoutInflater.inflate(LayoutInflater.java:423)  at android.view.LayoutInflater.inflate(LayoutInflater.java:374)  at com.android.internal.policy.PhoneWindow.setContentView(PhoneWindow.java:393)  at android.app.Activity.setContentView(Activity.java:2166)  at com.xxxtreehouse.funfacts.FunFactsActivity.onCreate(FunFactsActivity.java:19)  at android.app.Activity.performCreate(Activity.java:6237)  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107)  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369)  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)  at android.app.ActivityThread.-wrap11(ActivityThread.java)  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)  at android.os.Handler.dispatchMessage(Handler.java:102)  at android.os.Looper.loop(Looper.java:148)  at android.app.ActivityThread.main(ActivityThread.java:5417)  at java.lang.reflect.Method.invoke(Native Method)  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)  Caused by: java.lang.IllegalArgumentException: You need to use a Theme.AppCompat theme (or descendant) with the design library. at android.support.design.widget.ThemeUtils.checkAppCompatTheme(ThemeUtils.java:34) at android.support.design.widget.CoordinatorLayout.<init>(CoordinatorLayout.java:178) at android.support.design.widget.CoordinatorLayout.<init>(CoordinatorLayout.java:172) at java.lang.reflect.Constructor.newInstance(Native Method)  at android.view.LayoutInflater.createView(LayoutInflater.java:619)  at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:764)  at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:704)  at android.view.LayoutInflater.inflate(LayoutInflater.java:492)  at android.view.LayoutInflater.inflate(LayoutInflater.java:423)  at android.view.LayoutInflater.inflate(LayoutInflater.java:374)  at com.android.internal.policy.PhoneWindow.setContentView(PhoneWindow.java:393)  at android.app.Activity.setContentView(Activity.java:2166)  at com.xxxtreehouse.funfacts.FunFactsActivity.onCreate(FunFactsActivity.java:19)  at android.app.Activity.performCreate(Activity.java:6237)  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107)  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369)  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)  at android.app.ActivityThread.-wrap11(ActivityThread.java)  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)  at android.os.Handler.dispatchMessage(Handler.java:102)  at android.os.Looper.loop(Looper.java:148)  at android.app.ActivityThread.main(ActivityThread.java:5417)  at java.lang.reflect.Method.invoke(Native Method)