Check your file extension. If it is .blc , do not drag it into the right-hand mod list. Instead, go to File > Open and select the .blc file. It will unpack automatically. If you see "blcmm invalid file selected" on a .blc file, you are using the wrong import method.
Some mod developers upload "placeholder" files that contain only a comment (e.g., // Coming Soon ) to reserve a mod slot on Nexus. These contain no actual patch commands. blcmm invalid file selected
You are attempting to open a mod file designed for a different game in the series (e.g., trying to load a Pre-Sequel mod while BL2 is selected). How to Fix "BLCMM Invalid File Selected" 1. Verify and Adjust Game File Paths Check your file extension
: Download the latest version of OpenBLCMM on GitHub to see if the error persists. 4. Check for Java Incompatibilities It will unpack automatically