无法在Visual Studio Code中加载该文档的TSLint库

Question

I have installed the latest versions of Visual Studio Code, Node.js and Typescript on my Windows 10. Unfortunately, I am getting the following message in my terminal.

Failed to load the TSLint library for the document...

I tried installing the TSLint once again.

npm install -g tslint

And got the following message:

npm WARN tslint@5.11.0 requires a peer of typescript@>=2.1.0 || >=2.1.0-dev || >=2.2.0-dev || >=2.3.0-dev || >=2.4.0-dev || >=2.5.0-dev || >=2.6.0-dev || >=2.7.0-dev || >=2.8.0-dev || >=2.9.0-dev but none is installed. You must install peer dependencies yourself.
npm WARN tsutils@2.29.0 requires a peer of typescript@>=2.1.0 || >=2.1.0-dev || >=2.2.0-dev || >=2.3.0-dev || >=2.4.0-dev || >=2.5.0-dev || >=2.6.0-dev || >=2.7.0-dev || >=2.8.0-dev || >=2.9.0-dev || >= 3.0.0-dev || >= 3.1.0-dev but none is installed. You must install peer dependencies yourself.

+ tslint@5.11.0
updated 1 package in 1.853s

Restarting the VSC doesn't help and I am still getting a message that TSLint cannot be loaded.

• TSC 3.2.2
• VSC 1.29.1

Answer 1

tsutils and typescript are "peer" dependencies of TSLint, meaning TSLint requires that they be installed but won't do it for you _(this helps make sure TSLint uses the dependency versions you have, rather than providing confusingly different versions on its own). Try:

npm i tsutils typescript

...to install them manually.

Answer 2

Isn't that error message informing you about the missing extension? It bundles its own version of TSLint.

Try installing the vscode-tslint extension.