nodemon ''mocha' is not recognized as an internal or external command, operable program or batch file

Question

Running a test for a nodejs project on windows 10 with the line in package.json as:

\"test\": \"nodemon --exec \'mocha -R min\'\"

I get:

Answer 1

Also, check your NODE_ENV=development if you are on Windows and are using git-bash. For some reason, it defaults to production.

$ echo $NODE_ENV

With the --production flag (or when the NODE_ENV environment variable is set to production), npm will not install modules listed in "devDependencies"

You can verify this by checking your node_modules/ folder and see if mocha was installed. If not:

$ npm install --only=dev

also:

$ NODE_ENV=development
$ npm i -D mocha

would do the trick.