Ruby on Rails cannot bundle install

Question

Ruby version: 2.1.5p273
Rails version: 4.2.0
Gem Version: 2.2.2
OS: Windows 7 x64

Hello, I am very very new to rails programming. I am trying to start learning, but cannot
because of these problems.

• I created a rails app
  I type: >rails new app

• I then navigate to the created folder
  I type: >rails server

• It tells me
  "Run 'bundle install' to install missing gems."

• I do so and it than tells me:
  "Make sure that 'gem install debugger-linecache -v '1.2.0' succeeds before bundling'"

after installing said gem I try bundle install again, but it than repeats the same error with a different gem.

""Make sure that 'gem install *random gem* -v '*random version*' succeeds before bundling'""

I hardly have any idea what I'm doing here. How can I get this server running?

Answer 1

Solved by using the following two commands:
gem update --system
gem install bundler

Answer 2

i started to write an answer, and then saw you comment,

but for everyone out there who need an answer and didn't notice your comment:

Try this,

first run:

bundle update

and then try to bundle install

if its not working, install bundler:

gem install bundler

and now run bundle install