java.lang.RuntimeException

Unable to start activity ComponentInfo{com.example.mohammadzakriya.tech_bgkapp/com.example.mohammadzakriya.tech_bgkapp.Secondactivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.Button.setOnClickListener(android.view.View$OnClickListener)' on a null object reference

Solutions on the web45850

  • Unable to start activity ComponentInfo{com.example.mohammadzakriya.tech_bgkapp/com.example.mohammadzakriya.tech_bgkapp.Secondactivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.Button.setOnClickListener(android.view.View$OnClickListener)' on a null object reference
  • via Stack Overflow by Unknown author, 1 year ago
    Unable to start activity ComponentInfo{com.Tripps.thesimplegame/com.Tripps.thesimplegame.Main}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.Button.setOnClickListener(android.view.View$OnClickListener)' on a null object reference
  • Unable to start activity ComponentInfo{com.example.barun.myapplication/com.example.barun.myapplication.TextPlay}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.Button.setOnClickListener(android.view.View$OnClickListener)' on a null object reference
  • Stack trace

    • java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.mohammadzakriya.tech_bgkapp/com.example.mohammadzakriya.tech_bgkapp.Secondactivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.Button.setOnClickListener(android.view.View$OnClickListener)' on a null object reference at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2416) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)

    Write tip

    You have a different solution? A short tip here would help you and many other users who saw this issue last week.

    Users with the same issue

    7 times, 5 months ago
    Unknown user
    Once, 6 months ago
    Unknown user
    Once, 6 months ago
    3 times, 7 months ago
    Unknown user
    Once, 7 months ago
    104 more bugmates