Error creating custom extensions for capybara-webkit

I try to install the webkit driver for capybara on Windows and I get the following error:

$ gem install capybara-webkit-0.12.1.gem Temporarily enhancing PATH to include DevKit... Building native extensions. This could take a while... ERROR: Error installing capybara-webkit-0.12.1.gem: ERROR: Failed to build gem native extension. c:/RailsInstaller/Ruby1.9.3/bin/ruby.exe extconf.rb Gem files will remain installed in c:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/capybara-webkit-0.12.1 for inspection. Results logged to c:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/capybara-webkit-0.12.1/./gem_make.out 

And here’s what in the log file:

 C:\>cat c:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/capybara-webkit-0.12.1/./gem_make.out c:/RailsInstaller/Ruby1.9.3/bin/ruby.exe extconf.rb 

I have been trying for some time to find out what the problem is. The log file is not very useful, and the solutions for similar problems that I found were either Unix specific or did not work for me. I would appreciate any help you can give me.

Note. This question has been referred to the capybara-webkit google group.


Update: I tried to build the gem manually according to the recommendation of Joe Ferris on the capybara-webkit Google Group , and I was able to get more detailed information about what leads to a build failure. Here is the message I get when I run bundle exec rake build in the capybara-webkit directory:

 cd src/ && c:/Qt/4.8.3/bin/qmake.exe "c:/Documents and Settings/user/My Documents/Workspace/thoughtbot-capybara-webkit-7289a8e/src/webkit_server.pro" -spec c:/Qt/4.8.3/mkspecs/win32-g++ -o Makefile.webkit_server '.' is not recognized as an internal or external command, operable program or batch file. '.' is not recognized as an internal or external command, operable program or batch file. capybara-webkit 0.12.0 built to pkg/capybara-webkit-0.12.0.gem cd src/ && make -f Makefile.webkit_server make[1]: Entering directory `/c/Documents and Settings/user/My Documents/Workspace/thoughtbot-capybara-webkit-7289a8e/src' make -f Makefile.webkit_server.Release make[2]: Entering directory `/c/Documents and Settings/user/My Documents/Workspace/thoughtbot-capybara-webkit-7289a8e/src' bin/rcc.exe -name webkit_server webkit_server.qrc -o release/qrc_webkit_server.cpp make[2]: bin/rcc.exe: Command not found make[2]: *** [release/qrc_webkit_server.cpp] Error 127 make[2]: Leaving directory `/c/Documents and Settings/user/My Documents/Workspace/thoughtbot-capybara-webkit-7289a8e/src' make[1]: *** [release] Error 2 make[1]: Leaving directory `/c/Documents and Settings/user/My Documents/Workspace/thoughtbot-capybara-webkit-7289a8e/src' make: *** [sub-src-webkit_server-pro-make_default-ordered] Error 2 Command 'make' failed 

Other potentially relevant information:

 C:\>which make --all C:\RailsInstaller\DevKit\bin\make.EXE C:\Qt\4.8.3\bin\make.BAT C:\Program Files\Gow\bin\make.EXE C:\>which rcc C:\Qt\4.8.3\bin\rcc.EXE C:\>which g++ C:\RailsInstaller\DevKit\mingw\bin\g++.EXE 

And my WAY:

 C:\PROGRA~1\Serena\vm\win32\bin; C:\PROGRA~1\Serena\vm\common\bin\win32; C:\WINDOWS\system32; C:\WINDOWS; C:\WINDOWS\System32\Wbem; C:\Program Files\ATI Technologies\ATI.ACE\; C:\Program Files\Microsoft SQL Server\80\Tools\Binn\; C:\WINDOWS\system32\WindowsPowerShell\v1.0; C:\Program Files\TortoiseSVN\bin; C:\RailsInstaller\Ruby1.9.3\bin; C:\RailsInstaller\Ruby1.9.3\lib\ruby\gems\1.9.1\bin; C:\RailsInstaller\DevKit\bin; C:\RailsInstaller\Git\cmd; C:\Program Files\ansi153\x86; C:\bin; C:\RailsInstaller\DevKit\mingw\bin; C:\Qt\4.8.3\bin; C:\Program Files\Nodejs; C:\Documents and Settings\user\Desktop\emacs-23.4\bin; C:\Python27; C:\Python27\Scripts; C:\Program Files\GnuWin32\bin; C:\Program Files\Gow\bin; C:\Program Files\Notepad++; C:\Documents and Settings\user\Application Data\npm\ 
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I found a solution here: https://bugreports.qt-project.org/browse/QTBUG-27237

Following this special workaround , it works on my computer.

This seems to be a bug related to version 4.8.3, where the rcc.exe path was not found correctly.

In addition, after this, you may encounter the same error as me: It turns out that qmake compiled the webkit server in \ capybara-webkit-0.12.1 \ src \ release. And capybara-webkit builder expects to get this exe from the "debug" folder, see line 57 capybara_webkit_builder.rb

I unpacked the git repository and modified this source file to use "release" instead, and it works!

However, it took me 2 good workarounds to get it working ... Perhaps the installation is simpler using QT 4.7.X, as recommended in the capybara-webkit installation procedure. I have to check it out.

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Source: https://habr.com/ru/post/1440316/


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