[RESOLVED][1900.20] Object reference not set to an instance of an object.

[MauriceB]

Trying to load any scenario i get "Object reference not set to an instance of an object." when clicking "Load selected".

[Dimitris]

According to the exception log, you are not running Command as administrator. Can you try running it as administrator ?

[MauriceB]

Tried that, It didn't help.

[MauriceB]

FYI, Edit Scenario and Load Saved Game give the same error too.

[MauriceB]

As per your thread, Dimitris, on the Steam Discussions i rebooted my PC (it already had the latest updates) and then CMO was getting stuck on the Loading screen. I completely deleted CMO and reinstalled it. It's still hanging at the Loading Screen but there is a lot more info in the Exception Log (see attachment)

[MauriceB]

Ok, I got around the hanging at the Load Screen (totally forgot about the Launcher, I've been bypassing that for the last couple years.)

I still can't load any Scenarios. Here's the Exception Log when trying to load a scenario:

[Nikel]

.net is updated to the last version?

https://dotnet.microsoft.com/en-us/down ... ork/net481

[MauriceB]

Thanks for tip. .Net is good about updating if an app needs a specific version.
I did check though, and I have 4.8.1 of .net framework, and versions 3.1.32 through 10.0.12 of .net (core).

[MauriceB]

...and this morning I'm back to the loading screen getting hung up and not loading the Main UI with these in the Exception Log:

Code: Select all

07-10-2026 04:49:11 -- Bv1.10 - Build 1900.20 -- Object reference not set to an instance of an object. -- Scen :  -- DB :  -- Exception: Object reference not set to an instance of an object.
Stack Trace:    at (Object , Boolean )
   at JRrZDZ5CvtZpIx7QUeaZ.lfW55dwdZtB(Object , Boolean , JRrZDZ5CvtZpIx7QUeaZ )
   at Command.MainForm.MainForm_Load(Object sender, EventArgs e)
Call Stack & Error details: 
Error at 200579: Object reference not set to an instance of an object.Calling MainForm_Shown.
Populated CanalList.


07-10-2026 04:49:11 -- Bv1.10 - Build 1900.20 -- Object reference not set to an instance of an object. -- Scen :  -- DB :  -- Exception: Object reference not set to an instance of an object.
Stack Trace:    at (Object )
   at nQcfNt5CXlY6nOFxUffS.lfW55dwdZtB(Object , nQcfNt5CXlY6nOFxUffS )
   at Command.MainForm.CwZlDx0aPE(Object  , EventArgs  )
Call Stack & Error details: 
Error at 200580: Object reference not set to an instance of an object.

[Nikel]

Another trial and error suggestion.

Back up and delete the Command.ini file located in the "\Config" folder.

CMO will generate a new one when you restart it.

[MauriceB]

Thanks. Tried that yesterday but did it again just now. no luck.

[MauriceB]

This update works fine on my laptop. I compared the Exception Logs on my laptop (working fine) and desktop (failing to load) and noticed all the messages are the same except when my laptop message states "License: Command full version" my desktop spews out the 2 "Object reference not set to an instance of an object" messages as seen above.

[Dimitris]

So, something related to Steam licensing.

Can you check if there is a file called steam_appid.txt inside the installation folder on Steam?

If no such file exists, can you create it and write inside it this number: 1076160
Then save it, close it and try starting Command.

[MauriceB]

I do have that file with the right content in it. Tried recreating it, but no change in behaviour. Still not working.

I did a complete reinstall yesterday, but I'll try again with a complete reboot after uninstall and before install. Not sure what else to try.

[Nikel]

Is it not this line where the error happens in most of the exception logs? However it is not always at the same moment.

"Configured MainForm working area"


"License: Command full version" Happens after that one.


Dxdiag file, something related with CMO in it?

[Dimitris]

Probably a long shot, but: Apply all Windows updates and restart your machine.

[MauriceB]

Well with an uninstall, reboot pc, full install, reboot pc, it's finally working. Not sure how it got corrupted, but thanks for the help guys.