Alternate recipe research

this is the message im getting when downloading "alternate recipe research" ive downloaded multiple mods before this an have never had this message pop up.. and i checked. it seems i cant download any other mods? please help, not very computer savvy.
Solution:
try using SMM to turn off all mods, then deleting that lockfile
Jump to solution
31 Replies
FICSIT-Fred
FICSIT-Fred2mo ago
SMM Version: 3.0.3
SML Version: 3.11.3
Installed Mods: 20
Game: WindowsClient CL 433351 from steam
Path: `d:\SteamLibrary\steamapps\common\Satisfactory`
Command Line: cmd /C start steam://rungameid/526870
SMM Version: 3.0.3
SML Version: 3.11.3
Installed Mods: 20
Game: WindowsClient CL 433351 from steam
Path: `d:\SteamLibrary\steamapps\common\Satisfactory`
Command Line: cmd /C start steam://rungameid/526870
-# Responding to Key Details for SMMDebug-2025-09-26-14-48-02.zip triggered by @XxDwrathxX
Robb
Robb2mo ago
{"time":"2025-09-26T10:40:24.7518739-04:00","level":"ERROR","msg":"failed to install","action":{"type":"uninstall","item":"AltRecipeResearch"},"install":"d:\\SteamLibrary\\steamapps\\common\\Satisfactory","profile":"Default","error":"failed to resolve lockfile: failed to write lockfile: failed writing lockfile: open D:\\SteamLibrary\\steamapps\\common\\Satisfactory\\FactoryGame\\Mods\\default-lock.json: Access is denied."}
{"time":"2025-09-26T10:40:24.7518739-04:00","level":"ERROR","msg":"failed to install","action":{"type":"uninstall","item":"AltRecipeResearch"},"install":"d:\\SteamLibrary\\steamapps\\common\\Satisfactory","profile":"Default","error":"failed to resolve lockfile: failed to write lockfile: failed writing lockfile: open D:\\SteamLibrary\\steamapps\\common\\Satisfactory\\FactoryGame\\Mods\\default-lock.json: Access is denied."}
another program is keeping that file open somehow do you have multiple copies of the mod manager open?
XxDwrathxX
XxDwrathxXOP2mo ago
i dont think so? ive tried restarting my computer, and also shutting it down completely like i said, i have 10+mods already downloaded, but ive looked in the file explorer and i cant seem to find a "mods folder" anywhere oh, also. im tried running SMM as "administrator"
Robb
Robb2mo ago
>files_mods
FICSIT-Fred
FICSIT-Fred2mo ago
Mods are stored in your game install directory as described here. You rarely, if ever, need to modify this directory yourself, use the mod manager instead.
Robb
Robb2mo ago
running as admin is not ideal as it can cause files to be written with higher permissions I'm not sure what could be causing this, hopefully someone else can speak up
XxDwrathxX
XxDwrathxXOP2mo ago
hmm. do you think uninstalling and reinstalling both SMM and Satisfactory could help? its just weird that this just happened after using SMM for so long. and i dont really ever go in my file manager and change anything. so idk what could have happened
Solution
Robb
Robb2mo ago
try using SMM to turn off all mods, then deleting that lockfile
XxDwrathxX
XxDwrathxXOP2mo ago
for the deleting part do i just delete that specific mod from the SMM interface? or does that require going into my file manager?
Robb
Robb2mo ago
D:\\SteamLibrary\\steamapps\\common\\Satisfactory\\FactoryGame\\Mods\\default-lock.json this file in your file manager single slashes though (they are double in the text because of the file format of that log file)
XxDwrathxX
XxDwrathxXOP2mo ago
so delete the default lock file correct? after turning off mods
Robb
Robb2mo ago
yes
XxDwrathxX
XxDwrathxXOP2mo ago
then restart the smm?
Robb
Robb2mo ago
yep, and don't run SMM as admin this time
XxDwrathxX
XxDwrathxXOP2mo ago
ok ik this might sound dumb. but i just deleted the lock file. now close out of smm?
Robb
Robb2mo ago
yep
XxDwrathxX
XxDwrathxXOP2mo ago
just making sure i dont mess this up lol okay i re opened
Robb
Robb2mo ago
well if you do you'll just have to reinstall the game, so not much is at stake
XxDwrathxX
XxDwrathxXOP2mo ago
lol gotcha i just re opened it turn mods back on correct?
Robb
Robb2mo ago
yup and ideally the error will not occur
XxDwrathxX
XxDwrathxXOP2mo ago
so far so good oof i got rid of that mod on my SMM, ill try to reinstal now
Robb
Robb2mo ago
what do you mean by that?
XxDwrathxX
XxDwrathxXOP2mo ago
the mod that wasnt working, i was going back and forth trying to fix it on my own before u came to help. and i was deleteing and re installing it. onto the SMM im just going back and re installing from the SMM menu now sweet it worked U My man, are awesome. thank you
Robb
Robb2mo ago
ah I thought you were saying something had gone wrong and you were reinstalling the game, haha
Robb
Robb2mo ago
@Mircea (Area Actions) any idea what could have caused that lockfile to be write-blocked even after restarting?
XxDwrathxX
XxDwrathxXOP2mo ago
should i wait for response before marking problem solved?
Robb
Robb2mo ago
I already marked it, mircea will get the ping regardless
XxDwrathxX
XxDwrathxXOP2mo ago
Sweet, is there a way for me to see the response? or will it be on this post still? i would very much like to know the cause as well
Robb
Robb2mo ago
still on this post
XxDwrathxX
XxDwrathxXOP2mo ago
awesome thank you!👍

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