Mac OS 10.14 Mojave + qt5.5 + gem capybara-webkit

Question

My config is MAC Mojave v10.14.

I try to install gem Capybara-webkit -v '1.15.0' which need qt5.5, but qt5.5 has been dropped of the homebrew and it is not compatible with Xcode v10.

I try this :

• Uninstall Xcode v10
• Install Xcode 9.4.1, found in developer.apple.com/
• Install qt5.5, I have found it in the archives on qt.io/
• Run bundle

But it fail, my error is with the gem capybara-webkit -v '1.15.0':

Fetching capybara-webkit 1.15.0
Installing capybara-webkit 1.15.0 with native extensions
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.

current directory: 
/Users/thomas/.rbenv/versions/2.4.4/lib/ruby/gems/2.4.0/gems/capybara- 
webkit-1.15.0
/Users/thomas/.rbenv/versions/2.4.4/bin/ruby -r ./siteconf20181005-763-1bppnfh.rb extconf.rb
Project ERROR: Xcode not set up properly. You may need to confirm the license agreement by running /usr/bin/xcodebuild.
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers.  Check the mkmf.log file for more details.  You may
need configuration options.

Provided configuration options:
--with-opt-dir
--without-opt-dir
--with-opt-include
--without-opt-include=${opt-dir}/include
--with-opt-lib
--without-opt-lib=${opt-dir}/lib
--with-make-prog
--without-make-prog
--srcdir=.
--curdir
--ruby=/Users/thomas/.rbenv/versions/2.4.4/bin/$(RUBY_BASE_NAME)
--with-gl-dir
--without-gl-dir
--with-gl-include
--without-gl-include=${gl-dir}/include
--with-gl-lib
--without-gl-lib=${gl-dir}/lib
--with-zlib-dir
--without-zlib-dir
--with-zlib-include
--without-zlib-include=${zlib-dir}/include
--with-zlib-lib
--without-zlib-lib=${zlib-dir}/lib
Command 'qmake ' failed

extconf failed, exit code 1

 Gem files will remain installed in 
/Users/thomas/.rbenv/versions/2.4.4/lib/ruby/gems/2.4.0/gems/capybara-webkit-1.15.0 for inspection.
Results logged to /Users/thomas/.rbenv/versions/2.4.4/lib/ruby/gems/2.4.0/extensions/x86_64- darwin-18/2.4.0-static/capybara-webkit-1.15.0/gem_make.out

An error occurred while installing capybara-webkit (1.15.0), and Bundler 
cannot continue.
Make sure that `gem install capybara-webkit -v '1.15.0' --source 
'https://rubygems.org/'` succeeds before bundling.

In Gemfile:
capybara-webkit

Next, I did:

sudo xcodebuild -license agree

But the error persists...

Thank you for your help !

Answer 1

Here's what worked for me, found here:

• Keep your xcode v10 installed
• Manually download and install Qt 5.5 from their website
• Add Qt's bin path to your PATH environment variable by adding this to your .bashrc, .zshrc or any other shell configuration that you have: (make sure to replace /Applications/Qt/5.5/clang_64/bin with your Qt bin path)

export PATH="/Applications/Qt/5.5/clang_64/bin:$PATH" # Add Qt bin to path for capybara webkit to work

• Run gem install capybara-webkit

Answer 2

As described on the capybara-webkit wiki, capybara-webkit depends on Qt 5.5. "Qt 5.5 is the last version of Qt that capybara-webkit will support. The Qt project has dropped the WebKit bindings from binary releases in 5.6."

To install Qt 5.5 follow the instructions from the wiki. For Mojave, the instructions are the following.

brew update
cd $( brew --prefix )/Homebrew/Library/Taps/homebrew/homebrew-core
git checkout 9ba3d6ef8891e5c15dbdc9333f857b13711d4e97 Formula/[email protected]
brew install [email protected]
echo 'export PATH="$(brew --prefix [email protected])/bin:$PATH"' >> ~/.bashrc

You can confirm this step worked by running:

$ which qmake
/usr/local/opt/[email protected]/bin/qmake

Next, you need to install Xcode 9.4. Xcode 10 is not compatible with Qt 5.5. Xcode 9.4 can be downloaded from the Apple developer portal. This is a 4GB download and takes about 30 minutes to download and install. You can verify it's correctly installed by running the following:

$ /usr/bin/xcodebuild -version
Xcode 9.4.1
Build version 9F2000

If this doesn't work, it may be because you have only the Command Line Tools installed instead of Xcode, in which case you should make sure you downloaded the right version of Xcode. Or the Xcode folder may set incorrectly. If so, you can fix this using xcode-select, which will specifiy the folder in which xcodebuild runs:

sudo xcode-select -s /Applications/Xcode.app/Contents/Developer

When Xcode is finally installed, locate it in your Applications folder, open it, and agree to the license. Then try reinstalling capybara-webkit.

---

Disclaimer: I came up with the above answer from compiling multiple questions and answers and trying to remember the order in which I ran commands on my local machine. I may have accidentally omitted some steps.

Answer 3

I think my problem was with xcrun. For fix I did :

• sudo chown root:wheel /Applications/Xcode.app
• sudo xcode-select -switch /Applications/Xcode.app/Contents/Developer
• cd /Applications/Xcode.app/Contents/Developer/usr/bin/
• sudo ln -s xcodebuild xcrun

And it work (y) !