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capybara-webkit gem을 설치하려고 할 때 다음과 같은 오류가 있습니다.capybara-webkit gem 설치
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-
[email protected]/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/[email protected]/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
저는 우분투를 사용하며 libqt4-dev와 g ++를 설치했습니다. 누구든지 그것을 고칠 방법을 알고 있습니까?