Competition System ERROR 400: Detailed instructions

Hello everyone,
so I had a particular hard time fixing error 400 when I was trying to sign up for the Tatuus Winter Series, and after a lot of help from Marcel I was able to finally fix it. Since him and all the other devs are pretty busy atm, and the last thing they need is people constatnly asking them for help with an issue thats client sided, I decided to post the solution process here wit has much detail as possible, so people who have these issues in the future have somewhere to go to for help.

So, this error is caused by "track upgrades" that the user previously installed, for a league for example, for a track that is used by this series. So we have to 1) find out which tracks from the series are upgraded; and 2) use modmgr.exe (located in \rfactor2\bin64) to uninstal those upgrades.

TLDR: use modmgr.exe to uninstal track upgrades that you have for any track used in this comp. Track list can be found when you check the serie's summary in the comp system.

Unable to figure out which tracks have upgrades or not? Read on.

1):
- In steam, right click rfactor 2, click properties, and add "+trace=2 +traceFlush" (without quotes) to the Launch options
-start the game, let it sync with workshop, and exit the game
-go to \rfactor2\UserData\Log and open the last / most recent trace_*_*_*_*_*_*.log with your favorite text editor
- use the Find function (usually ctrl+F) to search for TatuusWinterSeries.
-Look for entries that look like this:

Code:

  93.25s ModMgr.cpp    745: Component Silverstone_2016 couldn't be added to mod TatuusWinterSeries because it has updates installed.

The tracks listed in these entries (in this case, Silverstone) are the culprit. Note them down.

EDIT: in case you can't find any entry that looks like that, uninstall TatuusWinterSeries mod in ModMgr and try signing up again.

2)
-go to \rfactor2\bin64 and open ModMgr.exe
- make sure the "Working Dir" is pointing to your \rfactor 2\ install folder
-This was the hard part for me. You have to find the tracks you listed before and uninstall the upgrades, so you get the "stock" track. Im my case, this was hard, because the upgrade changed the track names to, in this case, "R4_M2_CS_Racing_Cup_Silverstone" (R4 was the community where I did an M2 CS Racing Cup, which used silverstone), so when I listed alphabetically, I couldn´t find Silverstone... Uninstalling this brough back the usual Silverstone name. So, look for the culprit tracks in ModMgr.exe (which might actually have a different name), and press uninstal, so you get the stock track back.
-Also, uninstal the TatuusWinterSeries mod.

And that should do it. Open the game and wait for it to do its thing, then try signing up for the league, and it should work! in case it doesnt, go to /rfactor/installed/locations/ and delete the tracks folder, and repeat the process.


Cheers, and happy holidays

 

Even after deleting every track upgrade i had, i still get error 400

 

Thanks a lot, you saved Christmas!

 

I don't have track mods, but that happened to me, and joining a session the "500" error.
Both situation were solved, somehow, by exit and enter the game again.

 

thank you but too complicated...

 

Have you tried deleting the TatuusWinterSeries mod and re-entering the game? Have you checked trace log to see if any track is upgraded as explained in step 1?

Error 500 is steam side and usually restarting game and steam fixes this

 

After finding the tracks causing trouble I could uninstall them in the package manager, no need to use mod dev for me. If I can anyone can

 

If you still need help and are willing to provide more info as to what you're having difficulties with, I might be able to help (or others in this thread). "too complicated" is not really something we can work with

 

I just exit and enter again and everything works great.
This is in beta phase, so I expect this kind of problems, but still I want to help.

BTW, I have no errors in ModMgr.

 

From my recent tries and other's feedback on discord, you just have to wait and it'll join eventualy (usually 1 or 2 mins).

Updated OP to include error 500 and a note about modmgr working directory, and uninstaling the damaged mod.

 

still have error 400 cannot find the reason why according to fixes described above.
please find attached my trace. If somebody can help .. Thanks

 

17.89s JNIWorkshop. 690: Workshop Checking File For Install: G:\Jeux\Steam\steamapps\workshop\content\365960\2329641114 : TatuusWinterSeries_v1.0.rfmod
17.89s JNIWorkshop. 704: ->Queued for install
That seems to be the problem, try uninstalling the TatuusWinterSeries_v1.0 package and let it reinstall again.

 

thanks atomed i tried this , and a lot of other things. No way. Still 400 error.
Never mind i give up. Thanks for help

 

..friend of mine also had problems
turned out he was missing lime rock park
after installing the track everything worked
...so maybe check if you have all the tracks from the series

 

Thanks hpk but i have every track required for the series, with no track upgrade.
see screenshot attached.
I checked everything and everything is OK.

 

Indeed I double checked my install and your track versions are ok, the FT60 is 1.16?

 

yes i have FT60 v1.16

 

I'm still getting the error and I've basically uninstalled everything :/

 

@ravajava you should tick "Components" and find updated cars there.