Hi Soyer, All your activity class has to be there in your Manifest.xml file
if you call your activity class from other activity then that class has to be main( internt filter main) Please check these two point and i think this will solve ur problem. I am sure some problem in ur Manifest.xml file Moktarul On Feb 20, 11:24 pm, Mohamed Gougam <mblack...@gmail.com> wrote: > Hi Moktarul, What is in the the manifest file, you mean i have to remove > the "." ? i don't think that's it, the "." has to be there. > > Thanks guys for the help, Kris is it wrong if somebody try to learn > something different, out of his field !! Thanks for the help though i > really appreciate it. > > > > > > > > On Mon, Feb 20, 2012 at 3:44 PM, moktarul anam <mokta...@gmail.com> wrote: > > Hi > > BTDdetecetwithV7Activity in ur android Manifest file > > <activity name="BTDdetecetwithV7Activity"/>\ > > > Enjoy > > moktarul > > > On Feb 20, 12:26 am, Soyer <mblack...@gmail.com> wrote: > > > Hello everyone, Can anyone explain to me what this following error > > > means? have anyone faced the same? > > > > ERROR: > > > > 02-19 18:10:41.321: E/AndroidRuntime(319): java.lang.RuntimeException: > > > Unable to start activity ComponentInfo{android.mgo.helloandroid/ > > > android.mgo.helloandroid.BTDdetecetwithV7Activity}: > > > java.lang.NullPointerException > > > -- > > You received this message because you are subscribed to the Google > > Groups "Android Developers" group. > > To post to this group, send email to android-developers@googlegroups.com > > To unsubscribe from this group, send email to > > android-developers+unsubscr...@googlegroups.com > > For more options, visit this group at > >http://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en