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Installing on Ubuntu 22.04 LTS fails #202

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@github6043

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@github6043

Hi, any help is appreciated. I'm stuck with this, former Installation was Dashing on Ubuntu 20 LTS, I had to migrate to 22 LTS

Step two does not work 👍

Install bundler

$ gem install bundler

Install smashing

$ gem install smashing

Create a new project

$ smashing new my-project

Change Directory into the project

$ cd my-project

Install the bundle of project specific gems

$ bundle

Start the example dashboard!

$ smashing start

*ERROR: Error installing smashing:
ERROR: Failed to build gem native extension.

current directory: /var/lib/gems/3.0.0/gems/eventmachine-1.2.7/ext

/usr/bin/ruby3.0 -I /usr/lib/ruby/vendor_ruby -r ./siteconf20240215-255135-jefh5k.rb extconf.rb
mkmf.rb can't find header files for ruby at /usr/lib/ruby/include/ruby.h

You might have to install separate package for the ruby development
environment, ruby-dev or ruby-devel for example.

extconf failed, exit code 1

Gem files will remain installed in /var/lib/gems/3.0.0/gems/eventmachine-1.2.7 for inspection.
Results logged to /var/lib/gems/3.0.0/extensions/x86_64-linux/3.0.0/eventmachine-1.2.7/gem_make.out

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