Hi,
Make sure your Ngui version matches the free package. It's a very messy situation at the moment, so triple check you are using nGUI 3.x or else, and also triple check you are actually using the right PlayMaker package to match the ngui version.
Also, you may have some old scripts that you need to clean up, If you still have problems, starts on a fresh projects to make sure it's all ok, if it is, then you may have to delete the various playmaker and ngui folders and reimport package cleanly ( old orphaned files are not deleted when importing packages and will remain).
MAKE SURE YOU BACK UP BEFORE DOING ALL THIS!!! it's very important indeed.
Bye,
Jean
