Path error

[Ulsting]

I will attach a zip file containing my mod. Here is the error I am getting:

Path
__BetterWalls_0.1.0__/graphics/entity/steel-gate/gate-base-horizontal-mask.png does not match any mod.

Any help figuring out what this error means and how to fix it would be greatly appreciated.

[keyboardhack]

Same problem as solved in this thread
https://forums.factorio.com/forum/vie ... 25&t=12514