android.util.SuperNotCalledException: Activity {es.ugr.swad.swadroid/es.ugr.swad.swadroid.SWADMain} did not call through to super.onStart()

[Amab]

android.util.SuperNotCalledException: Activity {es.ugr.swad.swadroid/es.ugr.swad.swadroid.SWADMain} did not call through to super.onStart()
at android.app.Activity.performStart(Activity.java:5243)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2157)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2233)
at android.app.ActivityThread.access$800(ActivityThread.java:135)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5001)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
at dalvik.system.NativeStart.main(Native Method)