The term 'nodemon' is not recognized as a name of a cmdlet, function, code example

Example: nodemon : The term 'nodemon' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again. At line:1 char:1 + nodemon index

npm install -g nodemon --save