When I'm installing libxul-dev I end with this error message:$ sudo apt-get install libxul-devReading package lists... DoneBuilding dependency tree      Reading state information... DonePackage libxul-dev is not available, but is referred to by another package.This may mean that the package is missing, has been obsoleted, oris only available from another sourceE: Package libxul-dev has no installation candidateHow can I solve this?sources.list
apt-get : no installation candidate for libxul-dev
ubuntu;software installation;apt;package management
Take the list of files in the libxul-dev in hardy. Look for the package containing, say, libxul.so. In more recent releases, the corresponding package is xulrunner-1.9.2-dev (the version number might change). So, if you have old compilation instructions that mention libxul-dev, try with xulrunner*-dev instead.