[Java for Android App Development] Veid71:
sorry the new boston youtube ones ive gotten stuck on video #10 and video #14 on 14 it doesnt even give me an error code it just refuses to launch

02-17 21:14:26.655 2867-2867/com.example.veid71.floatinginterface4 I/art: Not late-enabling -Xcheck:jni (already on)

02-17 21:14:26.746 2867-2867/com.example.veid71.floatinginterface4 W/System: ClassLoader referenced unknown path: /data/app/com.example.veid71.floatinginterface4-1/lib/x86

02-17 21:14:26.894 2867-2867/com.example.veid71.floatinginterface4 D/AndroidRuntime: Shutting down VM

02-17 21:14:26.895 2867-2867/com.example.veid71.floatinginterface4 E/AndroidRuntime: FATAL EXCEPTION: main

Process: com.example.veid71.floatinginterface4, PID: 2867

java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.veid71.floatinginterface4/com.example.veid71.floatinginterface4.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.CharSequence android.support.v7.widget.Toolbar.getTitle()' on a null object reference

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: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.CharSequence android.support.v7.widget.Toolbar.getTitle()' on a null object reference

at android.support.v7.widget.ToolbarWidgetWrapper.<init>(ToolbarWidgetWrapper.java:98)

at android.support.v7.widget.ToolbarWidgetWrapper.<init>(ToolbarWidgetWrapper.java:91)

at android.support.v7.app.ToolbarActionBar.<init>(ToolbarActionBar.java:73)

at android.support.v7.app.AppCompatDelegateImplV7.setSupportActionBar(AppCompatDelegateImplV7.java:205)

at android.support.v7.app.AppCompatActivity.setSupportActionBar(AppCompatActivity.java:99)

at com.example.veid71.floatinginterface4.MainActivity.onCreate(MainActivity.java:28)

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)*

on video #10 and on this video i get this error for this line "cannot resolve symbol setonclicklistener" "cannot resolve symbol view" "variable onclick is never used"

FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);

fab.setOnClickListener(new View.OnClickListener() {

public void onClick(View view); {

Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)

.setAction("Action", null).show();