can't apply indicators to the chart

 

I uploaded the .ex4 indicator to mql4>indicator folder but on the platform the icon of the indicator is grey and I can't apply it in to the chart anyone know how to fix it?

 

 

Don't worry about the grey, it means you don't have the source code (.mq4). That is all.

Check your experts tab after you try to apply the indicator. It may tell you why it hasn't been applied.