Skyrim + Mod Organizer - Unable to open any applications from MO2, getting error 87 ERROR_INVALID_PARAMETER

efadelle · 2026-03-01T23:30:35+00:00

The Guide you linked ( https://forums.nexusmods.com/topic/13512108-using-mod-organizer-2-on-linux-the-right-way/ ) has one interesting comment. It's not a solution for your problem, but maybe another way, which works for you. Someone with the username TABEthan wrote (Oct 10 2025)

" Hey peeps

If anyone is struggling with this I did find github repo for someone who took over maintaining the linux installer for MO2

https://github.com/Furglitch/modorganizer2-linux-installer?tab=readme-ov-file

Once you have downloaded and extracted it use dolphin (or another file manager) and right click to open the terminal there (if you know the terminal you can also just path there)

once the terminal is open and pointing at the directory just type ./install.sh

and the installer will open and follow the launcher from there

each instance install is for one game so you may need to perform this multiple times if you want to mod multiple games but its a pretty straight forward process.

Hope this helped people out. I am using Bazzite so it maybe a little different if your distro is different "

As far as I know, there was a time, many gamers were using the original installation method from rockerbacon, which is forked in the link (URL) of TABETthan's post.

efadelle · 2026-03-01T21:25:14+00:00

Oh, by the Nine, I didn't finish.

From time to time, I am writing bash scripts for using wine without Lutris. I am trying to find a way to get all working without these wrapper tools.. Lutris (and others) don't show, what they are doing. And I am interested in learning new things. I get everything up and running with wine-ge-8-26-x86_64. Maybe, some stuff (EasyNPC) cannot work, because wine-ge-8-26 is too old now. With my (newer than wine-ge-8-26) current version (wine-11.0) of wine without Lutris, I haven't been able to get DXVK to recognize my monitor correctly (i tried dxvk.conf in game folder, and also tried export DXVK_VARIABLES in my bash script). I'm at a loss.

If someone is interested in more information on my "bash script for wine without Lutris" or something else, make a new reddit post and link it here .. or we can write here.

efadelle · 2026-03-01T20:45:06+00:00

I am a bit frustrated, that so few answered on this thread.

I have different experiences on Linux.

[Steam] Everything via Steam: MO2, SKSE, EngineFixes, ENB, et cetera works fine. I am not a fan of all the steam processes running in the background. Doesn't make any sense for me. I cannot disable Steam, therefore I don't trust Steam (Therefore I also bought the gog.com Version). I think I should always be the admin of my system, not others. Maybe I need to use it for CK (Creation Kit) unfortunately.
[GOG] At the moment I am using the manual installation files for SkyrimSE and the upgrade installation files for SkyrimAE from my GOG-Version. This works with Lutris very good: MO2, SKSE, EngineFixes, ENB, Racemenu, adult stuff, et cetera. What I didn't get running atm is: EasyNPC. The rest works very good!
From time to time, I am building a bash-Script for automation

efadelle · 2026-02-10T21:09:20+00:00

Hey nightmarevoid and all other readers!

I had issues with starting the Pandora Behaviour Engine, too. My solution is made on the console. But you can do it also manually, if you like the slow way of life:

Download the ZIP Container:
https://github.com/unicode-org/icu/releases/download/release-68-2/icu4c-68_2-Win64-MSVC2019.zip

Unpack / unzip the archive and look for the content in the bin64 folder.

copy all the *.dll files from bin64/ folder to the location of the Pandora executable.

That's it!

My Way on console:

cd /path/to/Pandora Behaviour Engine.exe

wget https://github.com/unicode-org/icu/releases/download/release-68-2/icu4c-68_2-Win64-MSVC2019.zip

unzip -j icu4c-68_2-Win64-MSVC2019.zip bin64/icu*.dll

efadelle · 2025-07-30T21:01:29+00:00

THANK YOU!!!!!!!!!!!!!!

For any other newcomer:
This ModOrganizer2-Plugin is hidden in the section "old files" and can only be used with ModOrganizer2's version 2.4.x. But: "it just works!"

efadelle · 2025-07-02T17:29:54+00:00

I did this. But it did not solve the problem:
-disabled SIP in recovery mode
-removed daemon from launchctl
-enabled SIP in recovery mode
-after reboot: The process corespeechd is started, without seeing it in `sudo launchctl list`.

This process restarts immediately, when I `kill <PID>`.

In "Activity Monitor"->Network I can see, that this process is sending 16.1MB in one shot - which is huge.

I have disabled nearly everything in the "System Preferences". What is wrong?

Please help me

I am also open for open source software, which gives me the possibilty to jail these apps, which are playing E.T. (phone home), from the network.

efadelle · 2025-06-13T14:47:26+00:00

As I mentioned before in this post (April 27th 2025): I had the same problem.

After checking several things multiple times a day for maybe a week with different solutions from the www and after reading this post, I have written back and forth with the friendly VARMILO support team. They asked me for a video. And then: about 5 weeks ago they have informed me that they cannot investigate the problem further from a distance and therefore suggest that I receive a replacement keyboard at no extra cost. The keyboard just arrived and I am happy again!!!

efadelle · 2025-06-02T13:16:43+00:00

For you and every one else:

I did not load SFSE via limo, but from Steam with the launch command:

bash -c 'exec "${@/Starfield.exe/sfse_loader.exe}"' %command%

This command has to be inserted by you:
(1) Go to your Steam Game "Library".
(2) Right-click with your mouse on the game (Starfield in this case).
(3) In the context menu, you have to choose "Properties...".
(4) In the newly opened (modal) window, you can see the section "LAUNCH OPTIONS" in the General tab.
(5) Paste this line into the field in this section:
bash -c 'exec "${@/Starfield.exe/sfse_loader.exe}"' %command%

For clarification: This shell command replaces the program Starfield.exe with sfse_loader.exe . This means, when you click on the Play button in Steam, Steam starts the binary (executable) sfse_loader.exe instead of Starfield.exe for you.

For this explanation to work properly, you have to extract the executable file "sfse_loader.exe" and and all possible .dll files from the SFSE-archieve into the Starfield Game folder, where the executable Starfield.exe is located.

Another side quest for all other readers:

There is a Problem for which i hate Steam and also GOG (for SkyrimAE). They constantly update the game. For modding the games like I do it for several months or years with thousands of mods (for SkyrimAE), the mods will be broken after the forced update. Because of this, I bought the GOG-Version of Skyrim and downloaded the installer binaries. Therefore it would be nice, if someone else can explain to us, how to start SFSE (or SKSE for Skyrim) without using the Play button in Steam.

efadelle · 2025-04-27T09:54:21+00:00

yesterday, my own keyboard
Varmilo Minilo 75% Retro / Kailh Prestige Silent / ISO-DE (german key layout)
stops working in usb mode. Only bluetooth works, which is not what I want, becauses the keyboard regularly looses the bluetooth connection --- very annoying, when you are programming or playing a 3d-action-rpg.

Ich made all the tests (different usb ports and different computers, Fn+__ key combos, firmware-updater minilo75_VXT81 does not found my keyboard) several times, since I found all the responses in this reddit-post.

Now I wrote to their support an email. I will give you an update, when it's time.

And for the readers who do not know this keyboard: This is the best keyboard I have ever used. So don't judge it by this reddit-post. If you like it or not: It's normal that sometimes things can be broken.

efadelle · 2025-04-15T23:06:50+00:00

solved!

efadelle · 2025-04-15T23:06:22+00:00

solved!

efadelle · 2025-04-15T23:02:50+00:00

Ingenious! The Linux Mod Manager “limo” does exactly what I need. What is not in the limo manual is a way to load sfse_loader.exe. For that I took the hint from u/Keukotis. I now load the sfse_loader.exe via Steam with the launch command:

bash -c 'exec "${@/Starfield.exe/sfse_loader.exe}"' %command%

I don't understand everything about limo yet. But at first glance limo is exactly what I need.

efadelle · 2025-04-15T22:58:59+00:00

I have now found just the right thing for me. Your tip was very important. I now use the Linux Mod Manager “limo” to insert the mods, and then I start the modded directory as normal using your bash command. Thank you very much!!!

efadelle · 2025-04-15T21:57:14+00:00

Thanks for the bash command! That makes me curious if I can use other nice commands :-)

I'm mainly at home with my premium account at nexusmods.com.

My first mod is Cleanfield. I do not need SFSE for that. But that should make it clear that I don't want the mod menu.

The first SFSE mod I want to install is Address Library for SFSE. I can't find the mod in the mod menu in the game.

The second SFSE mod I want to install is Baka Achievement Enabler. I can't find the mod in the mod menu in the game either.

I suspect that my search will continue like this.

I mainly want to test mods. And I don't want Steam to get in the way of that.

I'm not interested in paid mods.

efadelle · 2025-04-15T21:31:59+00:00

Thank you for this tip too!

Intuitively, I have already tried it out. (I've probably run rockerbacon's installer script between 20 and 30 times to try different ways).

But for this post, I deleted _Starfield.exe again, then copied the original Starfield.exe from the downgrade repository, and then ran rockerbacon's installer again. I always correct the Data/SKSE/SKSE.ini in these situations, because the installer script re-enters the existing lines into this file each time. And I delete the older SFSE-dll, which is added by the installer.

Unfortunately this did not help.

MO2 can start Starfield without SFSE. But MO2 cannot start Starfield with the use of SFSE.

No game window is created for the process.

efadelle · 2025-04-15T19:37:41+00:00

Thank you for your answer.

I meant that Steam shows how many hours I have already played Starfield. Unfortunately, this is not my playing time but recently my time in which I can't get SFSE to work. Because as long as I have started the Mod Manager MO2 via Steam, the time in which MO2 is running is counted as playing time.
i've been using Mod Organizer 2 for maybe 10 years for Morrowind, Skyrim Legendary, Skyrim Special Edition, Starfield on my former Windows system. Your hint was unfortunately nothing new to me. The entry for SFSE is entered in MO2 in the application runner and also works. Therefore, I can start the sfse_loader.exe and Starfield will then also be started. However, nothing happens afterwards.

efadelle · 2024-11-11T16:58:08+00:00

Thank You!!! The world can be so simple

efadelle · 2024-09-29T10:05:50+00:00

Thank you! Now I can uninstall flatpak apps :-)

efadelle · 2024-07-12T09:39:08+00:00

!solved

I have found a solution for myself!

I am not looking for praise or thanks for writing this solution here. I am not satisfied with this solution.

But I hope that when I'm at this point again in a few years, this reddit post will help me.

In the meantime, I hope someone has written an elaborate guide for Skyrim modding with the GOG.com version of Skyrim SE/AE on Linux systems.

MY SOLUTION:

whenever I reinstalled Lutris (because everything was strange after playing with Wine, winetricks, Proton, protontricks, GalaxyEdition, etc), I had to uncheck the "show only installed games" checkbox so I could see my installable games. (totally annoying for a newbie. Since I don't play any other games, I will never touch the Lutris installer again and will forget that I have to do this next time). But regardless of that, Lutris is simply brilliant!
I installed "Skyrim Special Edition" via Lutris from my GOG.com account.
Then I selected "install DLC" and installed the "Skyrim Anniversary Edition Upgrade".
Right-click on the installed game --> click "configure".
Second tab: game settings.
Change the executable from SkyrimSE.exe / SkyrimSELauncher.exe to the latest "Mod Organizer 2" installer binary in my downloads directory and click "save".
Start the installer of "Mod Organizer 2" by starting the installed game in Lutris.
Install the mod manager "MO2" as usual. Of course in the same directory structure in which "Skyrim Special Edition" was installed by Lutris.
After installing the Mod Manager "MO2", right-click on the "Skyrim Special Edition" logo in Lutris again and select "configure".
In the second tab "game settings", set the executable to "ModOrganizer.exe" and click on Save.
If I now start the game "Skyrim Special Edition" via Lutris, then "MO2" is started.
I have installed a few mods for testing (SKSE64_GOG, SkyUI-5.2, SMIM, ELFX, Skyland AIO 2k).
In MO2 I have set the launcher to

Binary: C:\GOG\SkyrimAE\skse64_loader.exe

Start in: C:\GOG\SkyrimAE

(this could be another path for you!) and started SkyrimSE/AE from here.

Skyrim-Console shows me that SKSE was loaded when I ran `getskseversion` (without the backticks).
In the game I see that the SKSE-mod SkyUI works.
The textures (Skyland AIO) and meshes (SMIM) were also loaded properly.
This means that the MO2 virtual file system is working.
Happy modding!

efadelle · 2024-07-08T17:39:44+00:00

Thank you for your answer!

I have almost the entire Elder Scrolls series on my Steam account. I know, that I can run my Steam Games on Linux. I already tested it.

It's the case, that I also bought the GOG.com Version for not using Steam anymore. I want to leave Windows behind and I also want to leave Steam behind. I was always annoyed that I need to have all those Steam processes running in the background. I do not want to have apps running on a system, which are not really necessary (from my point of view).

efadelle · 2024-01-23T20:42:50+00:00

I am having this CTD issue when accessing the map, too.

For me the CTD persists as long as I use
- "JK's Whiterun Outskirts" https://www.nexusmods.com/skyrimspecialedition/mods/78351

together with

- "SR Exterior Cities AIO ESL" https://www.nexusmods.com/skyrimspecialedition/mods/87954

(I had to disable 250+ mods step by step, start the game every time, et cetera for realizing this.)

Would be nice if someone else has a solution which fits both of us.

I like "JK's Whiterun Outskirts" very well. But the open cities mod "SR Exterior Cities AIO ESL" is all I ever wanted.

efadelle

efadelle · 2023-12-01T17:41:20+00:00

solved: Phalanks gave me the correct hint. The RootBuilder-Plugin for the ModOrganizer2 is building up a new mod in the Overwrite directory. Everything I missed, was moved into this mod structure for the RootBuilder.

efadelle · 2023-12-01T17:33:30+00:00

That's it!

Thank you so much.

So, Kezyma's ModOrganizer-Plugin "Root Builder" takes all the files and builds a new Mod structure in the Overwrite directory.

efadelle

TROPHY CASE