: Lack of administrative rights can prevent the tool from accessing or modifying the .exe file.
Re-download the mod from the original source (e.g., GitHub or Nexus Mods).
Subject: Error: "blcmm invalid file selected" blcmm invalid file selected
: Standard BLCMM has not been updated in years and often fails to recognize newer versions of Borderlands 2 (such as the Commander Lilith DLC update).
: Windows blocking the software from reading or writing to the game directory. Step-by-Step Solutions to Fix the Error 1. Verify You Are Selecting the Correct Executable ( .exe ) : Lack of administrative rights can prevent the
If the BLCMM application itself is outdated or corrupted, it cannot parse files correctly.
If you are using a non-Steam version (like a DRM-free or manually moved install), BLCMM may reject your BL2.exe . : Windows blocking the software from reading or
: BLCMM's built-in hex-editing feature is known to break after certain game updates.
OpenBLCMM is completely separate from the original BLCMM. You can have both installed, and they won't interfere with each other.
Make sure the file you are trying to open is actually a text file and not a webpage masquerading as a text file. 5. Reinstall or Update BLCMM
By switching to OpenBLCMM and following the steps above, you can eliminate the "BLCMM invalid file selected" error and get back to enjoying a fully modded experience in Borderlands 2 and The Pre-Sequel .