Npm installing Karma-jasmine doesn't work - npm

Question

I just follow the instructions in there:
http://karma-runner.github.io/0.12/intro/installation.html
Karma has been installed correctly.
Though, I can't install karma-jasmine and karma-chrome-launcher. I am actually having a lot's of warnings about README:
npm WARN package.json abbrev#1.0.4 No README data
npm WARN package.json ansi#0.2.1 No README data
npm WARN package.json archy#0.0.2 No README data
npm WARN package.json asn1#0.1.11 No README data
...
and then a few unmet dependancies:
*
npm WARN unmet dependency /usr/lib/node_modules/block-stream requires inherits#'~2.0.0' but will load
npm WARN unmet dependency undefined,
npm WARN unmet dependency which is version undefined
npm WARN unmet dependency /usr/lib/node_modules/fstream requires inherits#'~2.0.0' but will load
npm WARN unmet dependency undefined,
npm WARN unmet dependency which is version undefined
npm WARN unmet dependency /usr/lib/node_modules/fstream-ignore requires inherits#'2' but will load
npm WARN unmet dependency undefined,
npm WARN unmet dependency which is version undefined
npm WARN unmet dependency /usr/lib/node_modules/fstream-npm requires inherits#'2' but will load
npm WARN unmet dependency undefined,
npm WARN unmet dependency which is version undefined
npm WARN unmet dependency /usr/lib/node_modules/glob requires inherits#'2' but will load
npm WARN unmet dependency undefined,
npm WARN unmet dependency which is version undefined
npm WARN unmet dependency /usr/lib/node_modules/npmconf requires inherits#'~2.0.0' but will load
npm WARN unmet dependency undefined,
npm WARN unmet dependency which is version undefined
npm WARN unmet dependency /usr/lib/node_modules/tar requires inherits#'2' but will load
npm WARN unmet dependency undefined,
npm WARN unmet dependency which is version undefined
*
Any idea where could that come from ?

Answer 1

Follow below steps to setup karma-jasmine environment
• Install nodejs
o Download nodejs suitable setup file from https://nodejs.org/download/ website.
o Install nodejs using setup file
• Installation of Karma and plugins using npm(node package manager)
o Open command prompt
o Traverse to project structure
 cd ‘\path of project folder’
 (path till folder which is having /src folder in it)
o Install Karma
 npm install karma --save-dev
• New folder in project structure will get created named as ‘node_modules’
• If any warnings appear on command prompt ignore them
o Install browser plugins(optional)
 npm install karma-jasmine karma-chrome-launcher --save-dev
• If any warnings appear on command prompt ignore them
o Install Karma command line interpreter globally
 npm install -g karma-cli
• If any warnings appear on command prompt ignore them