What is the process for restoring or installing chai typings that have been specified as devDependencies?

After installing chai typings using the typings tool with the command provided, I am encountering an issue where chai is not being installed on the build server.

typings install chai --save-dev

The devDependencies section in my typings.json file is as follows:

"devDependencies": {
    "chai": "registry:npm/chai#3.5.0+20160415060238"
}

Despite running the command below on the build server, there is no indication that the new typings dependency has been successfully installed.

sudo node ./node_modules/typings install

When attempting to build my project using the tsc TypeScript compiler, I receive the following error message:

error TS2307: Cannot find module 'chai'.

Upon checking the directory typings/main/definitions/, I cannot locate the expected chai subdirectory.

Could there be something that I am overlooking? Is this possibly a flaw in non-ambient devDependencies?

typescriptchai

Answer №1

If you are not seeing any output, it could be that the typings tool is not running. One way to make sure the typings tool is referenced properly (especially in a node.js context) is by adding a line to your package.json file like this:

{
  "name": "typescript-react-webpack",
  "scripts": {
    ...
    "typings": "typings install"
  },
  ...
}

This will allow Node's built-in dependency lookup mechanism to locate the correct file for execution. Simply run npm run typings and the typings tool should start working.

Answer №2

I'm a bit perplexed by the recent shift in behavior, but it appears that the issue may stem from my method of utilizing the typings tool.

Instead of: 

sudo node ./node_modules/typings install

The correct command should have been:

sudo node ./node_modules/typings/dist/bin.js install

It's possible that there has been an alteration in how the typings tool interacts with npm now.

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