Factorio Forums

I found that if the mod name is "_test"

The directory structure is

_test/
├── data.lua
├── info.json
└── test.png

In this case

icon = "__test__/test.png"
error:Path __test__/test.png does not match anyenabled mod.

and

icon = "___test__/test.png"
error:Path ___test__/test.png not matching the resource path pattern:__source__/path

But without the path, the mod performs the other functions normally, no errors.