Plugin 'ShmMessaging' failed to load because module 'ShmMessaging' could not be found

Hi everybody;
I am a new user on Unreal Engine and I don’t know anything.Therefore I maybe making a mistake. I started using it since free launching version. My problem is Launching a game.I made the a video that you will see the process. “ShmMessaging” plugin is active or not, it gives me error.
Please help me where is problem ?

I received an error message :
“Plugin 'ShmMessaging’ failed to load because module ‘ShmMessaging’ could not be found. Please ensure the plugin is properly installed, otherwise consider disabling the plugin for this project.”

video proses
https://dl.dropboxusercontent.com/u/42371795/UnrealEnginePluginError.mov

My system
iMac 2010 2,93 Ghz i7 MacOsx Version 10.9.5

Not:I’m sorry for my english.