Nexus Mod Manager Issue

[Bradsmith313]

I had to reinstall FONV yesterday and when I download NMM, it said the mods wouldn't reload. Then, after clearing the mods and troublesome plug ins, I tried downloading mods -- this time, I get a missing root error message. Deleted FONV and reinstalled. Reinstalled NMM. Downloaded one mod perfectly. The other one -- missing root error.Uninstalled and reinstalled NMM again. This time, NMM says it can't detect the game yet FOMM "sees" it.

What did I screw up and how can I fix it?

Thanks.

[dubiousintent]

When did you last update NMM?

 

As of 08 May 2018, the Nexus has changed some site security to come into compliance with the new "European Union General Data Protection Regulation" (EU GDPR) rules. This breaks older versions of NMM and other tools using the older unsecured API. It is usually reported as being "blocked by the Windows firewall" or causing a "script" or "W3C XML Schema" error installing mods. You will need to update it from NMM on GitHub (or this Nexus NMM download page but it's older than the GitHub version). Check the version numbers between those sites and use the latest release. Please see this Nexus site news article for details.

Some people are finding that even after updating NMM to v0.65.4 they still get a "script exception" message when installing some mods (such as UIO and MCM). This seems to be resolved by this suggestion from user ElysianMod:
* Run NMM as an "Administrator privileges" account.
* Go to NMM "Settings".
* Enable "Add Shell Extensions for Supported File Types".
* Then restart NMM.
(Supposedly this fix is included in "unofficial" update v0.65.7 and later to NMM on GitHub.)

Also, NMM needs to be installed to the same drive as the game or it can't find it.

 

-Dubious-

[Bradsmith313]

So. I downloaded the updated NMM and enabled the shell extensions -- .zip, .rar and .7z files.

Ran as admin after I installed it -- or should I have done it during installation?

Restaered NMM. Download ST Robot Race v2 mod and still got the root error message.

NMM and FONV are on the same drive.

 

[Bradsmith313]

And thanks for heads up on the update. I was using the current download available from Nexus.

[Bradsmith313]

The frustrating part is that it was working fine until FONV had to be reinstalled.

[dubiousintent]

You have to be running as "Admin" when you set the shell extensions. Otherwise they don't "stick".

 

In addition, did you install Steam (and thus NMM also) to it's default location? If so, please see the wiki "Installing Games on Windows Vista+" article for why the original default Steam behavior of installing games to the "C:\Program Files" folder tree was bad (they learned better, and don't do that any more); and why "disabling UAC and running as Administrator" is NOT sufficient, with instructions how to move it. This is the single most important thing you can do to fix and protect yourself against problems in the future. As much of a PITA as that is, it's never going to be any easier than now. System updates often cause issues with games installed to these folder trees. Please see the 'Restoring to "Vanilla"' section of the wiki "FNV General Mod Use Advice" article as well.

-Dubious-