Public bug reported: Install the two packages: $ apt install mono-complete $ apt install monodevelop
on a fresh Ubuntu 16.04 box. Load an existing project that compiles and works with monodevelop and mono-complete as provided by Xamarin via their website. Installed is: monodevelop/xenial,xenial,now 5.10.0.871-2 all [installed] Development Environment for GNOME mono-complete/xenial,now 4.2.1.102+dfsg2-5ubuntu1 amd64 [installed] complete Mono runtime, development tools and all libraries Compiling with in the monodevelop ide results in CSC errors. * Got to Build -> Build All A number of errors occur such as: /home/jason/Programming/serialportstream/code/CSC: Error CS0518: The predefined type `System.Object' is not defined or imported (CS0518) (SerialPortStream) This is a standard type, so it appears there are some build/packaging issues with the version that comes from ubuntu sources. Solution: * For now, you have to take those from Mono itself: # apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF # echo "deb http://download.mono-project.com/repo/debian wheezy main" | sudo tee /etc/apt/sources.list.d/mono-xamarin.list # apt-get update Then everything works as expected. root@ubuntu1604x64:/etc/default# lsb_release -rd Description: Ubuntu Xenial Xerus (development branch) Release: 16.04 root@ubuntu1604x64:/etc/default# apt-cache policy monodevelop monodevelop: Installed: 5.10.0.871-2 Candidate: 5.10.0.871-2 Version table: *** 5.10.0.871-2 500 500 http://de.archive.ubuntu.com/ubuntu xenial/universe amd64 Packages 500 http://de.archive.ubuntu.com/ubuntu xenial/universe i386 Packages 100 /var/lib/dpkg/status root@ubuntu1604x64:/etc/default# apt-cache policy mono-complete mono-complete: Installed: 4.2.1.102+dfsg2-5ubuntu1 Candidate: 4.2.1.102+dfsg2-5ubuntu1 Version table: *** 4.2.1.102+dfsg2-5ubuntu1 500 500 http://de.archive.ubuntu.com/ubuntu xenial/universe amd64 Packages 100 /var/lib/dpkg/status ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: mono-complete 4.2.1.102+dfsg2-5ubuntu1 ProcVersionSignature: Ubuntu 4.4.0-15.31-generic 4.4.6 Uname: Linux 4.4.0-15-generic x86_64 ApportVersion: 2.20.1-0ubuntu1 Architecture: amd64 CurrentDesktop: Unity Date: Sat Apr 2 20:22:53 2016 InstallationDate: Installed on 2016-03-28 (5 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Beta amd64 (20160323) SourcePackage: mono UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: mono (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug xenial -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to mono in Ubuntu. https://bugs.launchpad.net/bugs/1565327 Title: moo-complete and mono-develop can't compile within ide Status in mono package in Ubuntu: New Bug description: Install the two packages: $ apt install mono-complete $ apt install monodevelop on a fresh Ubuntu 16.04 box. Load an existing project that compiles and works with monodevelop and mono-complete as provided by Xamarin via their website. Installed is: monodevelop/xenial,xenial,now 5.10.0.871-2 all [installed] Development Environment for GNOME mono-complete/xenial,now 4.2.1.102+dfsg2-5ubuntu1 amd64 [installed] complete Mono runtime, development tools and all libraries Compiling with in the monodevelop ide results in CSC errors. * Got to Build -> Build All A number of errors occur such as: /home/jason/Programming/serialportstream/code/CSC: Error CS0518: The predefined type `System.Object' is not defined or imported (CS0518) (SerialPortStream) This is a standard type, so it appears there are some build/packaging issues with the version that comes from ubuntu sources. Solution: * For now, you have to take those from Mono itself: # apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF # echo "deb http://download.mono-project.com/repo/debian wheezy main" | sudo tee /etc/apt/sources.list.d/mono-xamarin.list # apt-get update Then everything works as expected. root@ubuntu1604x64:/etc/default# lsb_release -rd Description: Ubuntu Xenial Xerus (development branch) Release: 16.04 root@ubuntu1604x64:/etc/default# apt-cache policy monodevelop monodevelop: Installed: 5.10.0.871-2 Candidate: 5.10.0.871-2 Version table: *** 5.10.0.871-2 500 500 http://de.archive.ubuntu.com/ubuntu xenial/universe amd64 Packages 500 http://de.archive.ubuntu.com/ubuntu xenial/universe i386 Packages 100 /var/lib/dpkg/status root@ubuntu1604x64:/etc/default# apt-cache policy mono-complete mono-complete: Installed: 4.2.1.102+dfsg2-5ubuntu1 Candidate: 4.2.1.102+dfsg2-5ubuntu1 Version table: *** 4.2.1.102+dfsg2-5ubuntu1 500 500 http://de.archive.ubuntu.com/ubuntu xenial/universe amd64 Packages 100 /var/lib/dpkg/status ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: mono-complete 4.2.1.102+dfsg2-5ubuntu1 ProcVersionSignature: Ubuntu 4.4.0-15.31-generic 4.4.6 Uname: Linux 4.4.0-15-generic x86_64 ApportVersion: 2.20.1-0ubuntu1 Architecture: amd64 CurrentDesktop: Unity Date: Sat Apr 2 20:22:53 2016 InstallationDate: Installed on 2016-03-28 (5 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Beta amd64 (20160323) SourcePackage: mono UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mono/+bug/1565327/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
