Help Getting error message on SG2

[puma123]

Hi,
This is my first post. I am getting this error message when i click on the messaging button.
android.content.activitynotfoundexception:unable to find explicit activity class {com.android.mms/com.android.mms.ui.conversationcomposer}; have you declared this activity in your androidmanifest.xml?

Also i am getting another error when i click on the phone icon > keypad > the mail icon in the keypad i get this error
The process android.process.acore has stopped unexpectedly. Please try again.

Should i do a factory reset for this or what?

Please i need help asap. Pls

 

[killavilla]

Hey
I am having the same problem with my galaxy s2 it started after i updated the phone's software via an OTA update,i noticed ur post was dated september were u able to fix this annoying problem? I really need help with this,i tried factory reset but the problem is still there.

 

[cherylk1959]

Hi !st message. getting android.process .acore message force close. cant see my contacts on phone still visable on keis. synced with windows contacts is I sync again will I lose windows contacts? If I delete contacts in keis on mobile contacts and som contacts and resync will that work? desperate confused and not very tech savy