PrintAST fails to find qlpack for dbscheme - but run query works

[dwendt]

Describe the bug
I've got a workspace open with a clone of github.com/codeql cpp\ql\src open as folder, and a DB loaded from archive. I'm writing some test queries in the root of that folder, and running them. Works OK.

However, when using View AST while browsing to a file from the archive, which was added to my workspace by right clicking on the db, it errors out. The file is definitely inside the archive, it was opened via clicking a .getLocation() result, but there is no difference if it's opened from the file explorer tree view.

This error is below. Note that the DB as built does not contain a qlpack.yml, and the vscode-codeql finds cpp\ql\src\qlpack.yml from the official repo just fine - verified it reads the file in procmon both when run query & view ast occur.

Error: Could not find qlpack file for dbscheme c:/Users/a/AppData/Roaming/Code/User/workspaceStorage/9a13bc4239c686fd988f4b27b7bc608d/GitHub.vscode-codeql/mybuild-codeql-db/mybuild-codeql-db/db-cpp/semmlecode.cpp.dbscheme
    at findDbschemePack (c:\Users\a\.vscode\extensions\github.vscode-codeql-1.7.4\out\helpers.js:248:11)
    at Object.getQlPackForDbscheme (c:\Users\a\.vscode\extensions\github.vscode-codeql-1.7.4\out\helpers.js:277:26)
    at qlpackOfDatabase (c:\Users\a\.vscode\extensions\github.vscode-codeql-1.7.4\out\contextual\queryResolver.js:15:12)
    at TemplatePrintAstProvider.getAst (c:\Users\a\.vscode\extensions\github.vscode-codeql-1.7.4\out\contextual\templateProvider.js:109:25)
    at CachedOperation.get (c:\Users\a\.vscode\extensions\github.vscode-codeql-1.7.4\out\helpers.js:330:28)
    at TemplatePrintAstProvider.provideAst (c:\Users\a\.vscode\extensions\github.vscode-codeql-1.7.4\out\contextual\templateProvider.js:91:15)
    at ctx.subscriptions.push.cancellable (c:\Users\a\.vscode\extensions\github.vscode-codeql-1.7.4\out\extension.js:712:21)

Version
The CodeQL and VS Code version in which the bug occurs.
CodeQL CLI (version 2.11.2)
VSCode 1.69.2

To reproduce

1. Build a CPP DB using the codeql cli
2. Open-as-folder the cpp\ql\src folder of the official repo to write new queries into.
3. Open a file from the DB, then click view AST.
4. Receive error

Expected behavior
View AST works when Run Query works

I suspect this might be due to my workspace setup... but I'm not sure what the intended way to work is when you want all queries from the official repo, as well as supplementing it with your own queries. Maybe I missed a doc describing the precise workspace/open-folders setup needed?

[aeisenberg]

Could you instead open the root folder of the github/codeql repository in your workspace? The problem you are having right now is that the cpp standard queries can be located in the workspace, but the cpp standard libaries cannot.

[dwendt]

That works, thanks!