Installing Dashing Error

问题:

I am trying to install Dashing Framework on my Macbook Air Os X Mavericks running Ruby 2.0.0.

When I run sudo gem install dashing I get the following errors:

    ERROR:  Error installing dashing:
    ERROR: Failed to build gem native extension.

    /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby extconf.rb
mkmf.rb can't find header files for ruby at /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/include/ruby.h


Gem files will remain installed in /Library/Ruby/Gems/2.0.0/gems/eventmachine-1.0.3 for inspection.
Results logged to /Library/Ruby/Gems/2.0.0/gems/eventmachine-1.0.3/ext/gem_make.out

Any thoughts on this? I'm not sure how to get this to install properly..

回答1:

I installed Dashing on a fresh Mavericks install today. I would recommend using Ruby 1.9.3. as per the "Getting Started" section.

Here is what I did:

If you haven't upgraded Xcode yet you should do so, open the terminal and type:

xcode-select --install

This will install xcode command tools.

Install RVM (development version): \curl -sSL https://get.rvm.io | bash

Watch the output, you have to perform one more step:

source --your path--.rvm/scripts/rvm

Install Ruby 193

rvm install ruby-1.9.3 --with-gcc=clang

I ran with --with-gcc=clang to get around "error: C compiler cannot create executables"

Once installed, you may then use it by executing the following command:

rvm use 1.9.3

And confirm it is in use

ruby -v

Then as per Dashing docs:

gem install dashing

dashing new sweet_dashboard_project or what you want to name it

Change your directory to sweet_dashboard_project and bundle gems

bundle

dashing start

Browse localhost:3030

回答2:

You need install ruby development package in mac os

see related question

• Unable to install gem - Failed to build gem native extension - cannot load such file -- mkmf (LoadError)
• OS-X, Rails: "Failed to build gem native extension"

回答3:

try the below command and run sudo gem install dashing

yum -y install gcc mysql-devel ruby-devel rubygems