Error trying to load gem middleman-bootstrap-navbar

[josephgodwinkimani]

I am using middleman static website generation gem to develop a website. I want to include the bootstrap navbar into index file so i installed middleman-bootstrap-navbar gem.

Here is my config.rb

configure :development do
  activate :livereload
  activate :bootstrap_navbar
  ready do
  sprockets.import_asset 'bootstrap.js'
end
configure :build do
 end

Here is my gemfile

# Middleman Gems
gem 'middleman', '>= 4.0.0'

# Live-reloading plugin
gem 'middleman-livereload'

gem 'middleman-compass', '>= 4.0.0'

# Navigation
gem 'middleman-bootstrap-navbar'
gem "sass"
gem "bootstrap-sass", "~> 3.3.6", :require => false 
gem 'sass-rails', '>=3.2'
gem "jquery-middleman" #Don't forget to run 'bundle install'
gem 'sprockets-rails', '~>3.0.0'

Here is my all.js

//= require jquery  
//= require bootstrap-sprockets
//= require tree .

Here is my site.css.sass

@import "bootstrap-sprockets";
@import "normalize";
@import "bootstrap";
@charset "utf-8";

I Run bundle install after installing all necessary gems and restarted my server at LiveReload ip bundle exec middleman. I got this error afterwards:

screenshot of the error in mysysgit

please help.

PS: Sorry I couldnt paste the error code here. That feature is not enabled in mysysgit bash.

[manuelmeurer]

No need to create more than one issue. bootstrap-ruby/middleman-bootstrap-navbar#3