VS Code中TSLint无法正常工作问题咨询

Let’s walk through the most likely fixes to get TSLint working properly in your setup:

• Install local dependencies (critical!)
  Global installs of tslint and typescript aren’t enough—VS Code’s TSLint extension prioritizes project-local packages for compatibility. Run this in your project root:

  npm install --save-dev tslint tslint-react typescript
  

• Fix your tslint.json syntax
  JSON files don’t support single-line // comments, which is breaking your configuration file. Remove those comments and use valid JSON:

  {
    "extends": ["tslint:latest", "tslint-react"],
    "rules": {
      "jsx-wrap-multiline": false,
      "max-line-length": false,
      "no-implicit-dependencies": [true, "dev"],
      "no-var-requires": false,
      "indent": false
    }
  }
  

• Verify VS Code extension status
  Open the Extensions panel (Ctrl+Shift+X), search for the TSLint extension, and make sure it’s enabled. If it shows any error badges, try disabling and re-enabling it, or reinstalling the extension entirely.

• Check VS Code settings for TSLint
  Open your settings (Ctrl+,), search for "tslint", and confirm these key settings:

  • tslint.enable is set to true
  • typescript.tsdk points to your local TypeScript installation (e.g., ./node_modules/typescript/lib relative to your project root)

• Reload the VS Code window
  Sometimes extensions need a refresh to pick up new dependencies or config changes. Press Ctrl+Shift+P, type "Reload Window", and run the command.

• Check version compatibility
  TSLint is no longer maintained, and newer TypeScript versions (4.0+) aren’t supported by TSLint 6.x. Run these commands to check your versions:

  tslint --version
  tsc --version
  

  If your TypeScript version is too new, you’ll need to either downgrade TypeScript to 3.9.x or migrate to ESLint (the recommended linter for modern TypeScript/React projects).

• Inspect the TSLint output for errors
  Open the VS Code Output panel (Ctrl+Shift+U), select "TSLint" from the dropdown menu. Any errors here (like config parsing failures or missing dependencies) will point you directly to the issue.

内容的提问来源于stack exchange，提问作者blankface