Editor crashes every time I hit play

Here are my full symptoms:

1)When I hit play it crashes.
2)When I click on the components of the player controlled character it crashes. Event graph and default settings open up fine.
3)I tried replacing my original player controlled character with another character I had in a different project. When I did this, the game didn’t crash when I hit play, but I seemed to spawn under the level. I couldn’t move and the words “Compiler Error” flashed across the screen in red.

I am using engine 4.6.1

Please help and thank you for your time!