wangyuze•2w ago

How to resolve this issue: "Cannot find name 'Deno'.ts(2304)"?

Hello! I'm new to using Deno, currently on version 2.0.6. I'm developing with VSCode and have installed the extension provided by Deno. I created a project using deno init deno_start. In VSCode, I ran Deno: Initialize Workspace Configuration and enabled Deno enable. Here is the content of settings.json

{
  "deno.enable": true,
  "typescript.tsserver.experimental.enableProjectDiagnostics": false
}

{
  "deno.enable": true,
  "typescript.tsserver.experimental.enableProjectDiagnostics": false
}

But vscode keeps telling me that Deno cannot be found. Introducing a /// <reference types="deno.ns" /> at the top of the file does not help. However, with cmd + click, I can always jump to Deno's type definition files. I've been searching online for a long time. On GitHub and Discord, a few people encountered the same problem, and they solved it by setting "typescript.tsserver.experimental.enableProjectDiagnostics" to false. However, this didn't work for me. I've already added this setting in settings.json. Is there any way to solve this issue? Thanks a lot.

3 Replies

wangyuzeOP•2w ago

For already installed dependencies, vscode will prompt both "cannot find" and "Resolved Dependency".

wangyuzeOP•4d ago

After spending a lot of time, I thought this might be due to vscode's default TypeScript checking. I tried disabling TypeScript checking to resolve the invalid error reports. I modified the configuration as follows. I'm not sure if this is correct, but at least now vscode no longer reports invalid errors to me.

{
  "deno.enable": true,
  "typescript.tsserver.experimental.enableProjectDiagnostics": false,
  "typescript.validate.enable": false,
}

{
  "deno.enable": true,
  "typescript.tsserver.experimental.enableProjectDiagnostics": false,
  "typescript.validate.enable": false,
}

bartlomieju•4d ago

If you have deno.enable true then the default TS server should have been disabled. CC @nayeemrmn