java.lang.RuntimeException: Unable to start activity ComponentInfo{com.entitcs.office_attendance/com.entitcs.office_attendance.signup_activities.Signup_Mobile}: android.content.ActivityNotFoundException: No Activity found to handle null
	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:4060)
	at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:4247)
	at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:91)
	at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:149)
	at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:103)
	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2613)
	at android.os.Handler.dispatchMessage(Handler.java:110)
	at android.os.Looper.loop(Looper.java:219)
	at android.app.ActivityThread.main(ActivityThread.java:8668)
	at java.lang.reflect.Method.invoke(Native Method)
	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:513)
	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1109)
Caused by: android.content.ActivityNotFoundException: No Activity found to handle null
	at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:2120)
	at android.app.Activity.startIntentSenderForResultInner(Activity.java:5753)
	at android.app.Activity.startIntentSenderForResult(Activity.java:5719)
	at androidx.activity.ComponentActivity.startIntentSenderForResult(Unknown Source:0)
	at com.entitcs.office_attendance.signup_activities.Signup_Mobile.onCreate(Unknown Source:72)
	at android.app.Activity.performCreate(Activity.java:8214)
	at android.app.Activity.performCreate(Activity.java:8202)
	at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1320)
	at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:4033)
	... 11 more