Sooooo.......

Uploading to steam...... and then this.

"Failed to update the mod file on Steam! Steam error 8"

I've tried to delete the empty file that Steam created me on my workshop...(btw that was very strange.... because there was no description, no title, and it was 0 MB...)

But that doesn't solve the problem.

Am I the only one in this situation?

P.S: I checked online what steam error 8 is about, and I figured out that is a problem linked to the connection... but my connection is ok.

If you're uploading a preview image, make sure it isn't larger than 512x512. Some of these obscure Steam errors don't mean what Google hits imply they should.

I ran into problems with this updating an older mod and found out they're enforcing the size restriction on those images now. Anything larger than 512x512 will throw an error code that means very little if anything. Fix the resolution and try again.

If that's not what it's about, then who know, as I said, those error codes are totally worthless.