adding other library crashes other one

adding other library crashes other one

I try to add facebookSDK library to my project and everything crashed.
Firstly appear the problem that I have 3 version of
android-support-v4.jar, so I copied the file from my project and paste it
in other 2 direction. Then I get the problem with the action bar buttons
like something wrong was with these library, I remove all files and add it
one more time.
Now I have error in every single case
public boolean onOptionsItemSelected(MenuItem item)
{
Intent intent;
switch (item.getItemId())
{
here -> case R.id.Choice1:
intent= new Intent(this, Chooser.class);
startActivity(intent);
return true;
like he didn't see the items from menu. I have to add
android-support-v4.jar one more time ?