Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Samebug tips

  1. ,

    Create an empty public constructor in your code.

Solutions on the web

via GitHub by rahulr4
, 1 year ago
Unable to start activity ComponentInfo{com.app.serviceapp/com.app.serviceapp.videochat.CallActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'com.quickblox.chat.QBWebRTCSignaling com.quickblox.chat.QBVideoChatWebRTCSignalingManager.getSignaling(int)' on a null object reference
via GitHub by jsarabia1247
, 10 months ago
Unable to start activity ComponentInfo{wycliffeassociates.recordingapp/wycliffeassociates.recordingapp.Recording.RecordingScreen}: java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference
via GitHub by adetheprince
, 6 months ago
Unable to start activity ComponentInfo{com.gotech.tv.launcher/com.gotech.tv.launcher.activity.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'int android.graphics.Bitmap.getWidth()' on a null object reference
via GitHub by maxme
, 1 year ago
Unable to start activity ComponentInfo{org.wordpress.android/org.wordpress.android.ui.posts.PostsListActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'int org.wordpress.android.models.Blog.getLocalTableBlogId()' on a null object reference
via Stack Overflow by Braudy
, 1 year ago
Unable to start activity ComponentInfo{com.android.braudy.androidnetworking/com.android.braudy.androidnetworking.WeatherActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.hashCode()' on a null object reference
via Stack Overflow by T.Karthikeyan T.Karthikeyan
, 1 year ago
Unable to start activity ComponentInfo{com.example.newtable.newtable/com.example.newtable.newtable.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'int java.lang.String.length()' on a null object reference
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.app.serviceapp/com.app.serviceapp.videochat.CallActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'com.quickblox.chat.QBWebRTCSignaling com.quickblox.chat.QBVideoChatWebRTCSignalingManager.getSignaling(int)' on a null object reference	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2426)	at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2490)