Usually, users do not differentiate between the two versions and try to install the normal mods into the opposite version. These two versions of Skyrim are very different in terms of features and architecture. If you are trying to use mods of simple Skyrim in Skyrim Special Edition, you will experience the error message instantly. The very first thing which we should make sure is that you are downloading the correct mods for your game.

Furthermore, you should be logged in as an administrator as we will be manipulating some system files. So whenever NMM tries to launch, it gets fed bad data and hence causes the error.īefore we move on to different solutions, make sure that you have an active internet connection on your computer. User Configuration: The temporary user configuration of Nexus Mod Manager might have incorrect data stored.A quick refresh of the game usually solves the issue. Corrupt Installation files of Skyrim: Like NMM, Skyrim might also have corrupt or outdated modules.The launcher will not launch properly and cause bizarre error messages. Corrupt Installation files of NMM: Nexus Mod Manager might have corrupt installation files on your computer.Bad path of NMM: If the path of Nexus Mod Manager is not set correctly or is not placed at the correct destination, it will give the error message.Incorrect version of Mods: If you are downloading the mods of Skyrim and using them in Skyrim Special Edition, they will not work properly.

Nexus mod manager cant log in