So I have project that has NGUI and no problem at all at unity 4.6.1
I made backup and upgraded to unity 5.0, After upgrade, 20 errors occurs, I imported ngui 3.8 at asset store just before, most error disappeard, but one line.
mTouchID = int.MinValue;
Assets/Script/UI/CardDetailScript.cs(7,9): error CS0103: The name `mTouchID' does not exist in the current context