In fragment class - Attempt to invoke virtual method 'void com.google.android.gms.common.api.GoogleApiClient.connect()' on a null object reference
49
What is a NullPointerException, and how do I fix it?
98469
Difference between Activity and FragmentActivity
96976
GoogleApiClient.isConnected() return always false
102874
Start an activity from a fragment
120803
Why is 'no connection' error appearing while accessing Google Play store?
79586
System.NullPointerException: Attempt to de-reference a null object
55647
the method getApplicationContext() is undefined
85964
Android: ClassNotFoundException when passing serializable object to Activity
2116
IllegalArgumentException or NullPointerException for a null parameter?
46857
Compiler warning: null reference exception
8424
Interface communication from fragment to activity issue
64200
Can Java's NullPointerException be changed to report on which variable was null?
98080
Android: Cannot invoke toString() on the primitive type int
48221
Solving "The ObjectContext instance has been disposed and can no longer be used for operations that require a connection" InvalidOperationException
87189
System.NullPointerException
132670
how to call a method of a class from another appDomain
13711
java.lang.NullPointerException at org.glassfish.hk2.classmodel.reflect.impl.TypesImpl.getType