Needs Info Unable to enter the game, blue screen appears

[Chi Gi]

Information​

When reporting a crash, stability or performance problems, please use the Report a Crash button on the earlier screen​

[CLICK] I understand

Required​

Summary​

Unable to enter the game, blue screen appears

Steps to reproduce​

Unable to enter the game, blue screen appears

Expected Result​

Unable to enter the game, blue screen appears

Actual Result​

Getting the game to work

Game Version​

It has been updated to the latest version. You can't see the version in the lower right corner after entering STEAM

What mods do you have installed?​

NONE

Affected Feature​

• User Experience

Platform​

• Steam

Additional Information​

Save Game​

Other Attachments​

 

[AndrewT]

First, let's eliminate mods, as until they are updated by their authors they can cause problems after any new game patch. Please add --disableModding to the game's Steam launch options. Then start a new test city - do you still get these crashes then?





If so, please try this: Rename the "Cities Skylines II" folder in your C:\Users\[user name]\AppData\LocalLow\Colossal Order (to whatever you want) and then start the game. To see the AppData folder you'll need to enable View Hidden Items in File Explorer.





The game will create a new clean CS2 folder and if that works it means that something in your original folder is corrupt and preventing the game from starting. Do NOT delete your original folder though as your saves are stored there and if you want to keep playing you'll need to move them over to the new fresh folder!





Let us know if that helps you. Good luck!

 

[_skitlezz]

First, let's eliminate mods, as until they are updated by their authors they can cause problems after any new game patch. Please add --disableModding to the game's Steam launch options. Then start a new test city - do you still get these crashes then?





If so, please try this: Rename the "Cities Skylines II" folder in your C:\Users\[user name]\AppData\LocalLow\Colossal Order (to whatever you want) and then start the game. To see the AppData folder you'll need to enable View Hidden Items in File Explorer.





The game will create a new clean CS2 folder and if that works it means that something in your original folder is corrupt and preventing the game from starting. Do NOT delete your original folder though as your saves are stored there and if you want to keep playing you'll need to move them over to the new fresh folder!





Let us know if that helps you. Good luck!

Hey I have the same problem and I tried to do the things you ordered to do but the game won't start either.

 

[AndrewT]

Hey I have the same problem and I tried to do the things you ordered to do but the game won't start either.

Can you please provide the player.log
Located in \AppData\LocalLow\Colossal Order\Cities Skylines II (To see the AppData folder you’ll need to enable View Hidden Items in File Explorer)

 

[AmirTheH]

First, let's eliminate mods, as until they are updated by their authors they can cause problems after any new game patch. Please add --disableModding to the game's Steam launch options. Then start a new test city - do you still get these crashes then?





If so, please try this: Rename the "Cities Skylines II" folder in your C:\Users\[user name]\AppData\LocalLow\Colossal Order (to whatever you want) and then start the game. To see the AppData folder you'll need to enable View Hidden Items in File Explorer.





The game will create a new clean CS2 folder and if that works it means that something in your original folder is corrupt and preventing the game from starting. Do NOT delete your original folder though as your saves are stored there and if you want to keep playing you'll need to move them over to the new fresh folder!





Let us know if that helps you. Good luck!

Sorry for jumping in, but same problem here. Did what you said here, and still no luck. I used to have the game installed from the Xbox app, but recently installed it from Steam and got the Blue Screen. I have attached the report in case it helps.

 

[webbie_]

Same issue as above, clean install, followed deletion of all files including saves.​

Player.log attached. Blue Screen mentions cryptographic error
bad padding pkcs7

[SceneFlow] [FATAL] Bad PKCS7 padding. Invalid length 0. System.Security.Cryptography.CryptographicException: Bad PKCS7 padding. Invalid length 0.
at Mono.Security.Cryptography.SymmetricTransform.ThrowBadPaddingException (System.Security.Cryptography.PaddingMode padding, System.Int32 length, System.Int32 position)

​

​

Information​

When reporting a crash, stability or performance problems, please use the Report a Crash button on the earlier screen​

[CLICK] I understand

Required​

Summary​

Unable to enter the game, blue screen appears

Steps to reproduce​

Unable to enter the game, blue screen appears

Expected Result​

Unable to enter the game, blue screen appears

Actual Result​

Getting the game to work

Game Version​

It has been updated to the latest version. You can't see the version in the lower right corner after entering STEAM

What mods do you have installed?​

NONE

Affected Feature​

• User Experience

Platform​

• Steam

Additional Information​

Save Game​

 

[TiredSkipper]

Same issue.

 

[fauxnik]

Blue error screen immediately after the loading screen finishes (or at least gets very close to finishing). This is after a fresh install and with choosing the "code mods disabled" option in both Steam and the launcher. Same thing when using the normal play option.

 

[AndrewT]

Blue error screen immediately after the loading screen finishes (or at least gets very close to finishing). This is after a fresh install and with choosing the "code mods disabled" option in both Steam and the launcher. Same thing when using the normal play option.

Same issue.

Same issue as above, clean install, followed deletion of all files including saves.​

Player.log attached. Blue Screen mentions cryptographic error
bad padding pkcs7

[SceneFlow] [FATAL] Bad PKCS7 padding. Invalid length 0. System.Security.Cryptography.CryptographicException: Bad PKCS7 padding. Invalid length 0.
at Mono.Security.Cryptography.SymmetricTransform.ThrowBadPaddingException (System.Security.Cryptography.PaddingMode padding, System.Int32 length, System.Int32 position)

​

​

Information​

When reporting a crash, stability or performance problems, please use the Report a Crash button on the earlier screen​

[CLICK] I understand

Required​

Summary​

Unable to enter the game, blue screen appears

Steps to reproduce​

Unable to enter the game, blue screen appears

Expected Result​

Unable to enter the game, blue screen appears

Actual Result​

Getting the game to work

Game Version​

It has been updated to the latest version. You can't see the version in the lower right corner after entering STEAM

What mods do you have installed?​

NONE

Affected Feature​

• User Experience

Platform​

• Steam

Additional Information​

Save Game​

Did you ALL do BOTH steps I gave in post #2? Using the launch option is necessary, disabling mods in the Steam mini menu does not do the same thing.

If so please check out the steps here:

Cities: Skylines II - Our Tips to Fix! - Steam News

Having issues after the last patch?

store.steampowered.com

 

[TiredSkipper]

Did you ALL do BOTH steps I gave in post #2? Using the launch option is necessary, disabling mods in the Steam mini menu does not do the same thing.

I have a Gamepass version, so don't know how to disable mods. I installed game for the first time without mods, deleted folder in app data, reinstalled game two times, verified game files. Nothing helps.

 

[AndrewT]

I have a Gamepass version, so don't know how to disable mods. I installed game for the first time without mods, deleted folder in app data, reinstalled game two times, verified game files. Nothing helps.

Ah, there is no such option there in that edition. Please go to mods.paradoxplaza.com and unsubscribe from ALL mods and assets.





THEN do a clean reinstall:

• Remove the game from Steam or the Xbox app (uninstall)
• Manually delete all these files and folders, if still there:

…\Steam\steamapps\common\Cities Skylines II\ (if on Steam only)


…\AppData\LocalLow\Colossal Order\Cities Skylines II\


(first move the /saves/ folder elsewhere to keep your save games)


(To see the AppData folder you'll need to enable View Hidden Items in File Explorer)

• Install the game again and start a new test city (NOT load any existing one).

Good luck!

 

[TiredSkipper]

Nothing from above helped, no mods, reinstalled game several times to different discs (I wanted to play the game for the first time, didnt play it before), deleted files from appData... ridiculous I cant even launch the game on modern hardware 2 years after release.

 

[AndrewT]

Nothing from above helped, no mods, reinstalled game several times to different discs (I wanted to play the game for the first time, didnt play it before), deleted files from appData... ridiculous I cant even launch the game on modern hardware 2 years after release.

You appear to have this problem:

[FileSystem] [ERROR] Content integrity check failed: Game System.Security.Cryptography.CryptographicException: Bad PKCS7 padding. Invalid length 0.

Please add your player.log to this thread

Cryptographic_ Exception Error that happened.

Information When reporting a crash, stability or performance problems, please ensure that you have the files ready for submission [CLICK] I understand Required Summary Cryptographic_ Exception Error that happened. Steps to reproduce This issue...

forum.paradoxplaza.com

Hopefully @pdx_Mimonsi can weigh in on it soon.

Sorry about that!

 

[pdx_Mimonsi]

Hello, this is an issue that happens to some people. Unfortuately we currently have no solution for that. It seems the installation files are corrupt for some reason. The developers have already been notified about this.

Until then, some people have had success when creating a new windows user account and installing the game there. Maybe it would be worth if you gave that a try.

 

[johndavidsonbass]

Wow! Same problem, no fix... I haven't been able to play this game for almost a year. This is unbelievable. We thought the launch was rocky.