IntelliSense for multi-root workspace does not work

[dalisoft]

Does this issue occur when all extensions are disabled?: Yes

• VS Code Version: v1.71.0
• OS Version: macOS v12.5.1

NOTE

It's new issue for wrongly closed #159071

Steps to Reproduce:

1. Use multi-root workspace with Javascript Node.js & React.js projects
2. Try to use IntelliSense and auto-complete

Updated steps

• Download https://github.com/dalisoft/vscode-workspace-bug/archive/refs/heads/master.zip DO NOT CLONE, DOWNLOAD ZIP FILE FOR BETTER REPRODUCE
• Run ./git-init.sh (Linux & macOS) for imitiate Git powered repo
• Open workspace.code-workspace with VSCode
• Install dependencies for all workspaces
• Try to work with IntelliSense on both backend and frontend folder, you'll see the bug

Settings

Workspace settings

{
  "folders": [
    {
      "path": "api-shared"
    },
    {
      "path": "ui-shared"
    },
    {
      "path": "backend"
    },
    {
      "path": "frontend"
    },
  ],
  "settings": {
    "git.autofetchPeriod": 60,
    "task.allowAutomaticTasks": "on",
    "typescript.tsserver.useSyntaxServer": "always",
    "typescript.tsserver.experimental.enableProjectDiagnostics": true,
    "typescript.tsserver.maxTsServerMemory": 5120,
    "typescript.tsserver.log": "verbose",
    "cSpell.enabled": false,
    "eslint.workingDirectories": [
      "./api-shared",
      "./ui-shared",
      "./backend",
      "./frontend",
    ],
  }
}

Global settings

Actual

actual.mp4

Excepted

excepted.mp4

How to switch between Actual & Excepted?

Just open backend folder from VSCode

Interesting facts

• On my daily using (6-8 folders with macOS Native tabs) using Workspaces feature reduces my memory usage up-to 4-5 times (from 14GB to ~3GB) while increasing CPU usage by 3-x (so coolers forgets about silent)
• On workspaces (6-8 folders) using launch tasks uses CPU very aggressively so CPU coolers keeps at max almost always
• On workspaces easier to work and opening terminals, so it increases productivity up-to 20% and it's huge if calculate per year

[vscodenpa]

Thanks for creating this issue! It looks like you may be using an old version of VS Code, the latest stable release is 1.71.0. Please try upgrading to the latest version and checking whether this issue remains.

Happy Coding!

[dalisoft]

@mjbvz I am today tried the first M1 build of VSCode to test this feature, the funny thing on the old version it worked. Works fine.

and 40% lesser memory usage, less CPU intensive than current version, so seems with updates something got wrong or something broken

---

Warning: Do not use old VSCode as VSCode developer teams does not support releases, does not accept issues and pull requests for old releases.
Many of extensions already does not support old release, signing via GitHub also does not work on old versions

[dalisoft]

I loop over many releases until found from which release it stopped working, it's https://code.visualstudio.com/updates/v1_60

[dalisoft]

Hi @mjbvz
I am cloned VSCode repository and tried everything related to typescript-languages-features revert from difference release/1.59...release/1.60 but it is did not work, can you give me hint please, where i should look?

Thank you