demo is difficult to run

[DanielFGray]

I'm trying to upgrade my project (from v7) to v21, and trying to get the new demo working again..

first I tried degit against the demo dir as I had done previously, and swapped the package.json file versions from file:.. to latest versions on npm, and using the npm aliases described in the readme..

this builds, but running the vite server throws an error

[plugin:vite:import-analysis] Cannot read properties of null (reading 'id')
/home/dan/build/pg-playground/monaco-vscode-api/demo/src/setup.common.ts:91:7

85 |  import { TerminalBackend } from "./features/terminal";
86 |  import { workerConfig } from "./tools/extHostWorker";
87 |  import "vscode/localExtensionHost";

I tried a few different variations and tricks to get this to work, but all came up with the same error.

I threw Sonnet 4 via opencode at the problem and after a while it said

The localExtensionHost.js and localExtensionHost.d.ts files are missing from the published npm package./
Based on my analysis:

   1. Demo Configuration: ✅ The demo is correctly configured:
    • In demo/package.json:199: "vscode": "npm:@codingame/monaco-vscode-api@22.1.3" properly aliases the
        vscode package
    • In demo/vite.config.ts:86: 'vscode/localExtensionHost' is included in optimizeDeps.include
    • In demo/src/setup.common.ts:91: import 'vscode/localExtensionHost' is the import causing the issue
   2. Source Code: ✅ The source code exists:
    • src/localExtensionHost.ts contains the full implementation
    • rollup/rollup.config.ts:38 includes localExtensionHost: './src/localExtensionHost.ts' in the build
        configuration
   3. Published Package: ❌ The issue: The published package @codingame/monaco-vscode-api@22.1.3 is missing
        the compiled localExtensionHost.js and localExtensionHost.d.ts files.
   4. Package Exports: ✅ The package.json exports are correctly configured with the wildcard pattern ./*
        that should make vscode/localExtensionHost resolve to ./localExtensionHost.js

(but that's LLM output, grain of salt and all that)

then I tried to build the project from source, and when bun install error'd I used npm install and after 20 minutes this thing is still running postinstall scripts, and now I'm not sure I want to upgrade that badly
update: it finished, but running npm run build fails with a TS error