[ubuntu-mono] [Bug 1563090] Re: monodevelop 5.10.0.871-2 has broken asp.net support/addin

[William Ivanski]

@rajasingh012 Fist, you need to add the Mono Project GPG signing key and
the package repository to your system, as seen here: http://www.mono-
project.com/docs/getting-started/install/linux/#debian-ubuntu-and-
derivatives

Then, you have to pin the package to not install from ubuntu repo, which
provides a higher version. Edit file /etc/apt/preferences and put the
following:

Package: monodevelop
Pin: origin archive.ubuntu.com
Pin-Priority: -1

Run apt-get update

Finally, you can downgrade with:

# sudo apt install monodevelop=5.10.0.871-0xamarin2

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https://bugs.launchpad.net/bugs/1563090

Title:
  monodevelop 5.10.0.871-2 has broken asp.net support/addin

Status in monodevelop package in Ubuntu:
  Confirmed

Bug description:
  monodevelop 5.10.0.871-2 (Ubuntu 16.04 beta*) appears to have some of
  the xml files and manifests for the asp.net support addin, but its
  missing the actual dll assemblies, so it doesn't actually work.

  Snippet from the monodevelop logs:

  WARNING: [MonoDevelop.AspNet,5.10] Could not load some add-in assemblies: Could not find file "/usr/lib/monodevelop/AddIns/AspNet/System.Web.Helpers.dll".
  ERROR: Errors found in add-in '/usr/lib/monodevelop/AddIns/AspNet/MonoDevelop.AspNet.dll:
  ERROR: The file '/usr/lib/monodevelop/AddIns/AspNet/System.Web.Helpers.dll' referenced in the manifest could not be found.
  ERROR: The file '/usr/lib/monodevelop/AddIns/AspNet/System.Web.Mvc.dll' referenced in the manifest could not be found.
  ERROR: The file '/usr/lib/monodevelop/AddIns/AspNet/System.Web.Razor.dll' referenced in the manifest could not be found.
  ERROR: The file '/usr/lib/monodevelop/AddIns/AspNet/System.Web.WebPages.Deployment.dll' referenced in the manifest could not be found.
  ERROR: The file '/usr/lib/monodevelop/AddIns/AspNet/System.Web.WebPages.dll' referenced in the manifest could not be found.
  ERROR: The file '/usr/lib/monodevelop/AddIns/AspNet/System.Web.WebPages.Razor.dll' referenced in the manifest could not be found.
  WARNING: The add-in 'MonoDevelop.Debugger.Soft.AspNet,5.10' could not be updated because some of its dependencies are missing or not compatible:
    missing: MonoDevelop.AspNet,5.10

  The monodevelop package (5.10.0.871-0xamarin2) direct from Xamarin,
  which the Ubuntu package closely resembles has the correct dll
  assemblies and asp.net support works correctly.

  I'm guessing this is some form of package build failure and not a
  feature being disabled intentionally?

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