TypeError: Cannot read properties of undefined (reading 'build')

[iki]

Any printing (or preview) attempt opens browser with

TypeError: Cannot read properties of undefined (reading 'build')
    at T.respond (...\.vscode-insiders\extensions\pdconsec.vscode-print-1.4.1\dist\extension.js:2:3870774)
    at processTicksAndRejections (node:internal/process/task_queues:105:5)
    at Server.<anonymous> (...\.vscode-insiders\extensions\pdconsec.vscode-print-1.4.1\dist\extension.js:2:3856914)

However, there's no .build usage at that position, the closest before is at 2:3726775:

this.version.major,this.version.minor,this.version.build,this.version.subbuild

(however .major would fail first I guess)
and the first after is at 2:3899172

await this.pageBuilder.build();
return t.writeHead(200,{"Content-Type":"text/html; charset=utf-8","Content-Length":Buffer.byteLength(n,"utf-8")})

The error in log is:

2025-06-12 18:22:18 error: Content source could not be determined. "undefined" does not resolve to a file and there is no active editor.
2025-06-12 18:22:19 error: Cannot read properties of undefined (reading 'build')

Using VS Code Insiders 1.101.0 and pdconsec.vscode-print 1.4.1

[iki]

Seems fixed after VSCode update restart

[iki]

Reinstalling extension triggers this issue again, restarting VS Code fixes it

[PeterWone]

That's very strange, I will try to reproduce it.

[iki]

@PeterWone Thank you! Let me know if I can help with any tests/logs

[allcodellc]

I'm getting this same error. I've disabled/enabled, uninstalled/installed, and restarted. Nothing fixed it. Let me know what I can provide to help.

[Stonemuzzle]

I receive this error if I try to print the rendered markdown from the Markdown template that results from using the "Markdown: Open Preview" action. However, I can print and preview the .md file itself with no issues. When I run "Printing: Print preview" on the markdown file, the preview web page actually renders the markdown rather than displaying it, so that works for my use-case, but I'm sharing the specific condition that allows me to repro the error in case it helps to isolate cause and fix.