[ubuntu-mono] [Bug 1875850] [NEW] mono-xbuild is deprecated but there is no replacement

[EoflaOE]

Public bug reported:

After upgrading my installation to 20.04, I decided to remove all
repositories and keep the Ubuntu repositories in sources.list as they
were not supported to file this report. I ran "sudo apt update" and
removed all packages from all repositories that are not Ubuntu.

When I inspected what mono-* packages were installed, I saw that one of
them, which is mono-xbuild, is installed. However, when I ran "xbuild",
I saw this following line:

>>>> xbuild tool is deprecated and will be removed in future updates,
use msbuild instead <<<<

So I went ahead and ran "apt list msbuild" and saw nothing, which is
weird considering that xbuild is deprecated and that it recommends to
use msbuild, which is not available yet. Even worse, the project that I
was building requires at least msbuild 15.0. This is what "xbuild
/version" returned:

XBuild Engine Version 14.0
Mono, Version 6.8.0.105
Copyright (C) 2005-2013 Various Mono authors

"lsb_release -rd" output:

Description:	Ubuntu 20.04 LTS
Release:	20.04

"apt-cache policy mono-xbuild" output:

mono-xbuild:
  Installed: 6.8.0.105+dfsg-2
  Candidate: 6.8.0.105+dfsg-2
  Version table:
 *** 6.8.0.105+dfsg-2 500
        500 http://sy.archive.ubuntu.com/ubuntu focal/universe amd64 Packages
        100 /var/lib/dpkg/status

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: mono-xbuild 6.8.0.105+dfsg-2
ProcVersionSignature: Ubuntu 5.4.0-26.30-generic 5.4.30
Uname: Linux 5.4.0-26-generic x86_64
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Wed Apr 29 12:25:08 2020
InstallationDate: Installed on 2019-07-21 (282 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Alpha amd64 (20190715)
PackageArchitecture: all
SourcePackage: mono
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: mono (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: mono (Debian)
     Importance: Unknown
         Status: Unknown


** Tags: amd64 apport-bug focal third-party-packages

** Bug watch added: Debian Bug tracker #959045
   https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=959045

** Also affects: mono (Debian) via
   https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=959045
   Importance: Unknown
       Status: Unknown

** Bug watch added: Debian Bug tracker #959043
   https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=959043

** Changed in: mono (Debian)
 Remote watch: Debian Bug tracker #959045 => Debian Bug tracker #959043

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https://bugs.launchpad.net/bugs/1875850

Title:
  mono-xbuild is deprecated but there is no replacement

Status in mono package in Ubuntu:
  New
Status in mono package in Debian:
  Unknown

Bug description:
  After upgrading my installation to 20.04, I decided to remove all
  repositories and keep the Ubuntu repositories in sources.list as they
  were not supported to file this report. I ran "sudo apt update" and
  removed all packages from all repositories that are not Ubuntu.

  When I inspected what mono-* packages were installed, I saw that one
  of them, which is mono-xbuild, is installed. However, when I ran
  "xbuild", I saw this following line:

  >>>> xbuild tool is deprecated and will be removed in future updates,
  use msbuild instead <<<<

  So I went ahead and ran "apt list msbuild" and saw nothing, which is
  weird considering that xbuild is deprecated and that it recommends to
  use msbuild, which is not available yet. Even worse, the project that
  I was building requires at least msbuild 15.0. This is what "xbuild
  /version" returned:

  XBuild Engine Version 14.0
  Mono, Version 6.8.0.105
  Copyright (C) 2005-2013 Various Mono authors

  "lsb_release -rd" output:

  Description:	Ubuntu 20.04 LTS
  Release:	20.04

  "apt-cache policy mono-xbuild" output:

  mono-xbuild:
    Installed: 6.8.0.105+dfsg-2
    Candidate: 6.8.0.105+dfsg-2
    Version table:
   *** 6.8.0.105+dfsg-2 500
          500 http://sy.archive.ubuntu.com/ubuntu focal/universe amd64 Packages
          100 /var/lib/dpkg/status

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: mono-xbuild 6.8.0.105+dfsg-2
  ProcVersionSignature: Ubuntu 5.4.0-26.30-generic 5.4.30
  Uname: Linux 5.4.0-26-generic x86_64
  ApportVersion: 2.20.11-0ubuntu27
  Architecture: amd64
  CasperMD5CheckResult: skip
  CurrentDesktop: ubuntu:GNOME
  Date: Wed Apr 29 12:25:08 2020
  InstallationDate: Installed on 2019-07-21 (282 days ago)
  InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Alpha amd64 (20190715)
  PackageArchitecture: all
  SourcePackage: mono
  UpgradeStatus: No upgrade log present (probably fresh install)

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