Windows Script error upon opening a new javascript behavior script.

Everytime i try to open a new behavior script (javascript) it gives me an error message saying that there is a compilation error. Im new to programming and maybe i need to download software before using javascript? Can someone help?

This happens to me too i posted a message with a picture thats happing to me too.i finished my game i just need main menu but

i need javascript.

Yes from your screenshot it does show your executing it Via Shell, you need to make sure Monodevelop is installed and open scripts via MonoDevelop.

thanks alot i dont have 1 mono develop i downloade right now thanks a lot

I have monodevelop installed but it still doesn’t work. D: