Unknown Resource for Image and condition files

It would be useful to know a bit more about how you coded it in order to have an idea what the error might be.

Is it a loop within a loop where you specify the condition file in an inner loop?
Do you specify the condition file path+filename in the dialogue box or as a variable through a code snippet?
Have all your resources synced successfully online/did you copy the condition file into the resource folder?

Have you looked at other forum posts which talk about solutions in more detail (below links are just two examples I picked)?

Cheers,
Julia