Hello everyone, in this post, I want to talk about an error that my friend, who couldn't build in Unity, asked me about and that we encountered.

If you get an error such as "Invalid build path: \"file location\"" when you try to output, the solution is quite simple. Before moving on to the solution, I want to talk a little bit about why this error occurs.

One of the main factors for seeing this error is that the "Split APKs by..." option in "Player Settings > Other Settings" is checked.

Another reason for seeing this error is that our file is inside folders containing Turkish characters.

As for the solution, as the first method, uncheck the tick in the "Split APKs by..." section located in "Player Settings > Other Settings".

If you are still getting an error when trying to output, create a folder named "Projects" (or any other name you want, but no Turkish characters) inside your "C:" or "D:" drives, move your project files into it, open the project from there, and try building again.

Note: Please do not select your project folder as the output location while building!