unknown resource type compilation error when trying to import indicator as a resource ?

[ST_ Rhodes]

I am trying to import an indicator as a resource inside another indicator , But when I try and compile the code , it gives me the error:

unknown resource type 'C:\Users\r2\AppData\Roaming\MetaQuotes\Terminal\97E7543905E3BBAA10BC45C3DA77753D\MQL4\Indicators\IKSH.ex4'  

When I call this indicator using iCustom() without importing it as a resource , it all works fine , but when I try to add it as resource , it gives me the error.
What could be the cause of this error ? 

this is how I am importing the indicator as a resource :

#resource "\\Indicators\\IKSH.ex4"

This is the indicator :