[Bug] Repository update failed, failed to roll back after loading download counts

[teostrom1]

Background

• Operating System: Windows
• CKAN Version: v1.31.2
• KSP Version: 1.12.5.3190

Have you made any manual changes to your GameData folder (i.e., not via CKAN)?
no

Problem

heres the entire log from start to finish:

Scanning for DLCs and manually installed modules...
Updating repositories...
Refreshing game version data
Downloading "https://github.com/KSP-CKAN/CKAN-meta/archive/master.tar.gz"
Loading modules from default repository...
Loaded download counts from default repository
Repository update failed!
Failed to roll back.

Describe the bug
basically repository update failed then failed to roll back.

Steps to reproduce

• for me i just installed it by following a guide

Expected behavior
normal startup i guess

Screenshots (if applicable)

[HebaruSan]

That's printed here:

CKAN/GUI/Main/MainRepo.cs

Lines 172 to 177 in 8390a61

	case Exception exc:
	AddStatusMessage(Properties.Resources.MainRepoFailed);
	currentUser.RaiseMessage(exc.Message);
	Wait.Finish();
	EnableMainWindow();
	break;

"Failed to roll back" is the Message property of the exception, and "Repository update failed!" is just the generic description printed before that. They don't reflect two things that happen in sequence, but the general and specific messages for one event.

[HebaruSan]

"Failed to roll back" unfortunately is probably not the original problem, since rolling back is not part of the normal update process. Some other exception was thrown, then in response to that CKAN tried to roll back, which failed, and that is the message we see.

[HebaruSan]

#3890 is trying to improve the "Failed to roll back" error messages, so we should at least have a clearer idea of what is happening here in the next release.