How to quote an indicator in another indicator?

[moonsboy]

After I use iCustom() to quote an existing indicator in this indicator, it says "can't open that existing indicator file".

However I can quote that same existing indicator in my EA  successfully.

What's the root cause? Do you have any similar experience to fix the issue? 

[ffoorr]

Check the name of the indicator, and the number of extern

[William Roeder]

Detailed explanation of iCustom - MQL4 forum