Cannot find module 'ts-node/register'

Question

I want to use mocha to test my TypeScript/Angular2 project. I tried to use ts-node as described here:

npm install -g ts-node

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Answer 1

Error:
module.js:328
    throw err; 
Error: Cannot find module 'ts-node'

Solution: Following command solves the issue.

npm install ts-node --save-dev

(Installs ts-node as a development dependency for your project)