java.lang.RuntimeException: Unable to start activity ComponentInfo{cat.edx_manel.exercises.chatfirebase/cat.edx_manel.exercises.chatfirebase.activities.LoginActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.Button.setEnabled(boolean)' on a null object reference

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via Stack Overflow by M. Mariscal
, 1 year ago
Unable to start activity ComponentInfo{cat.edx_manel.exercises.chatfirebase/cat.edx_manel.exercises.chatfirebase.activities.LoginActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.Button.setEnabled(boolean)' on a null object reference
via Stack Overflow by Yankee
, 1 year ago
Unable to start activity ComponentInfo{com.example.yankee.cw/com.example.yankee.cw.LoginActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.Button.setEnabled(boolean)' on a null object reference
via GitHub by dmsherazi
, 1 year ago
Unable to start activity ComponentInfo{net.kindows.chitchat/net.kindows.chitchat.LoginActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.Button.setEnabled(boolean)' on a null object reference
via GitHub by sergiocastell
, 11 months ago
Unable to start activity ComponentInfo{rom.stalker/browser.afh.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'boolean android.net.NetworkInfo.isConnectedOrConnecting()' on a null object reference
via GitHub by sergiocastell
, 11 months ago
Unable to start activity ComponentInfo{rom.stalker/browser.afh.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'boolean android.net.NetworkInfo.isConnected()' on a null object reference
via GitHub by sergiocastell
, 11 months ago
Unable to start activity ComponentInfo{rom.stalker/browser.afh.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'boolean android.net.NetworkInfo.isConnected()' on a null object reference
java.lang.RuntimeException: Unable to start activity ComponentInfo{cat.edx_manel.exercises.chatfirebase/cat.edx_manel.exercises.chatfirebase.activities.LoginActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.Button.setEnabled(boolean)' on a null object reference
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2416)

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