Installation of capybara-webkit ruby gem

I have following errors when I try to install capybara-webkit ruby gem

Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.

    /home/s/.rvm/rubies/ruby-1.8.7-p371/bin/ruby extconf.rb 
    cd src/ && /usr/lib/x86_64-linux-gnu/qt4/bin/qmake /home/s/.rvm/gems/ruby-1.8.7- 
    p371@/gems/capybara-webkit-0.14.1/src/webkit_server.pro -spec 
   /usr/share/qt4/mkspecs/linux-g++ -o Makefile.webkit_server
   cd src/ && make -f Makefile.webkit_server 
   make[1]: Entering directory `/home/s/.rvm/gems/ruby-1.8.7-p371@/gems/capybara-     webkit-0.14.1/src'

   g++ -c -pipe -O2 -Wall -W -D_REENTRANT -DQT_NO_DEBUG -DQT_WEBKIT_LIB -DQT_GUI_LIB - DQT_NETWORK_LIB -DQT_CORE_LIB -DQT_SHARED -I/usr/share/qt4/mkspecs/linux-g++ -I. - I/usr/include/qt4/QtCore -I/usr/include/qt4/QtNetwork -I/usr/include/qt4/QtGui - I/usr/include/qt4/QtWebKit -I/usr/include/qt4 -I. -o EnableLogging.o EnableLogging.cpp
   g++ -c -pipe -O2 -Wall -W -D_REENTRANT -DQT_NO_DEBUG -DQT_WEBKIT_LIB -DQT_GUI_LIB -  DQT_NETWORK_LIB -DQT_CORE_LIB -DQT_SHARED -I/usr/share/qt4/mkspecs/linux-g++ -I. - I/usr/include/qt4/QtCore -I/usr/include/qt4/QtNetwork -I/usr/include/qt4/QtGui - I/usr/include/qt4/QtWebKit -I/usr/include/qt4 -I. -o Authenticate.o Authenticate.cpp
 In file included from Authenticate.cpp:2:0:
 WebPage.h:46:17: error: incomplete type ‘QNetworkReply’ used in nested name specifier   
 WebPage.h:46:17: error: incomplete type ‘QNetworkReply’ used in nested name specifier
 WebPage.h:46:45: error: template argument 1 is invalid
 make[1]: *** [Authenticate.o] Error 1
 make[1]: Leaving directory `/home/s/.rvm/gems/ruby-1.8.7-p371/gems/capybara-  webkit-0.14.1/src'
 make: *** [sub-src-webkit_server-pro-make_default-ordered] Error 2
 Command 'make' failed

I use Ubuntu 13.04 and I have installed libqt4-dev and g++. Does anyone know how to fix it? I installed it correctly on Ubuntu 12.10.

Solution 1:

Seems to be a popular issue... https://github.com/thoughtbot/capybara-webkit/issues/513

Had this problem myself and fought with it for a week or so. Seems to be working now though! Problem is I can't narrow it down to what I did. Here's a list of things that might of helped fix it:

Install missing packages:

sudo apt-get install libqt4-dev libqtwebkit-dev build-essential

If the packages exist already purge and then install

sudo apt-get purge libqt4-dev libqtwebkit-dev

Reinstall ruby

rvm reinstall 1.9.3

Create a unique fresh gemset: https://rvm.io/gemsets/creating
remove specific version of cabybara-webkit from Gemfile
Delete Gemfile.lock

sudo apt-get update && sudo apt-get upgrade

I think re-installing RVM was what did it for me. It had become cluttered over time with all the different rails projects and personal hacks.

Installation of capybara-webkit ruby gem

Solution 1:

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