Hi all,

I've been trying to build plasma & kwin under neon user edition and encountering this dependency error while trying to do so for months:

Code: Select all

wyatt@hacktop:~$ sudo apt build-dep plasma-desktop plasma-workspace kwin
Reading package lists... Done
Reading package lists... Done
Building dependency tree     
Reading state information... Done
Starting pkgProblemResolver with broken count: 3
Starting 2 pkgProblemResolver with broken count: 3
Investigating (0) builddeps:plasma-desktop:amd64 < none -> 1 @un puN Ib >
Broken builddeps:plasma-desktop:amd64 Depends on libphonon4qt5-dev:amd64 < none | 4:4.10.2-0xneon+18.04+bionic+build5 @un uH > (>= 4.6.60)
  Considering libphonon4qt5-dev:amd64 0 as a solution to builddeps:plasma-desktop:amd64 9998
    Reinst Failed early because of libphonon4qt5-4:amd64
  Considering libphonon4qt5-dev:amd64 0 as a solution to builddeps:plasma-desktop:amd64 9998
  Considering libphonon4qt5-dev:amd64 0 as a solution to builddeps:plasma-desktop:amd64 9998
  Considering libphonon4qt5-dev:amd64 0 as a solution to builddeps:plasma-desktop:amd64 9998
  Considering libphonon4qt5-dev:amd64 0 as a solution to builddeps:plasma-desktop:amd64 9998
Investigating (0) builddeps:plasma-workspace:amd64 < none -> 1 @un puN Ib >
Broken builddeps:plasma-workspace:amd64 Depends on libphonon4qt5-dev:amd64 < none | 4:4.10.2-0xneon+18.04+bionic+build5 @un uH > (>= 4:4.8.0-5)
  Considering libphonon4qt5-dev:amd64 0 as a solution to builddeps:plasma-workspace:amd64 9998
  Considering libphonon4qt5-dev:amd64 0 as a solution to builddeps:plasma-workspace:amd64 9998
  Considering libphonon4qt5-dev:amd64 0 as a solution to builddeps:plasma-workspace:amd64 9998
  Considering libphonon4qt5-dev:amd64 0 as a solution to builddeps:plasma-workspace:amd64 9998
  Considering libphonon4qt5-dev:amd64 0 as a solution to builddeps:plasma-workspace:amd64 9998
Investigating (0) libphonon4qt5experimental-dev:amd64 < none -> 4:4.10.2-0xneon+18.04+bionic+build5 @un uN Ib >
Broken libphonon4qt5experimental-dev:amd64 Depends on libphonon4qt5experimental4:amd64 < none | 4:4.10.2-0xneon+18.04+bionic+build5 @un uH > (= 4:4.10.2-0xneon+18.04+bionic+build5)
  Considering libphonon4qt5experimental4:amd64 0 as a solution to libphonon4qt5experimental-dev:amd64 1
  Holding Back libphonon4qt5experimental-dev:amd64 rather than change libphonon4qt5experimental4:amd64
Investigating (1) builddeps:plasma-desktop:amd64 < none -> 1 @un puN Ib >
Broken builddeps:plasma-desktop:amd64 Depends on libphonon4qt5-dev:amd64 < none | 4:4.10.2-0xneon+18.04+bionic+build5 @un uH > (>= 4.6.60)
  Considering libphonon4qt5-dev:amd64 0 as a solution to builddeps:plasma-desktop:amd64 9998
  Considering libphonon4qt5-dev:amd64 0 as a solution to builddeps:plasma-desktop:amd64 9998
  Considering libphonon4qt5-dev:amd64 0 as a solution to builddeps:plasma-desktop:amd64 9998
  Considering libphonon4qt5-dev:amd64 0 as a solution to builddeps:plasma-desktop:amd64 9998
  Considering libphonon4qt5-dev:amd64 0 as a solution to builddeps:plasma-desktop:amd64 9998
Broken builddeps:plasma-desktop:amd64 Depends on libphonon4qt5experimental-dev:amd64 < none | 4:4.10.2-0xneon+18.04+bionic+build5 @un uH >
  Considering libphonon4qt5experimental-dev:amd64 1 as a solution to builddeps:plasma-desktop:amd64 9998
    Reinst Failed early because of libphonon4qt5-4:amd64
    Reinst Failed because of libphonon4qt5experimental4:amd64
  Considering libphonon4qt5experimental-dev:amd64 1 as a solution to builddeps:plasma-desktop:amd64 9998
  Considering libphonon4qt5experimental-dev:amd64 1 as a solution to builddeps:plasma-desktop:amd64 9998
  Considering libphonon4qt5experimental-dev:amd64 1 as a solution to builddeps:plasma-desktop:amd64 9998
  Considering libphonon4qt5experimental-dev:amd64 1 as a solution to builddeps:plasma-desktop:amd64 9998
Investigating (1) builddeps:plasma-workspace:amd64 < none -> 1 @un puN Ib >
Broken builddeps:plasma-workspace:amd64 Depends on libphonon4qt5-dev:amd64 < none | 4:4.10.2-0xneon+18.04+bionic+build5 @un uH > (>= 4:4.8.0-5)
  Considering libphonon4qt5-dev:amd64 0 as a solution to builddeps:plasma-workspace:amd64 9998
  Considering libphonon4qt5-dev:amd64 0 as a solution to builddeps:plasma-workspace:amd64 9998
  Considering libphonon4qt5-dev:amd64 0 as a solution to builddeps:plasma-workspace:amd64 9998
  Considering libphonon4qt5-dev:amd64 0 as a solution to builddeps:plasma-workspace:amd64 9998
  Considering libphonon4qt5-dev:amd64 0 as a solution to builddeps:plasma-workspace:amd64 9998
Broken builddeps:plasma-workspace:amd64 Depends on libphonon4qt5experimental-dev:amd64 < none | 4:4.10.2-0xneon+18.04+bionic+build5 @un uH >
  Considering libphonon4qt5experimental-dev:amd64 1 as a solution to builddeps:plasma-workspace:amd64 9998
  Considering libphonon4qt5experimental-dev:amd64 1 as a solution to builddeps:plasma-workspace:amd64 9998
  Considering libphonon4qt5experimental-dev:amd64 1 as a solution to builddeps:plasma-workspace:amd64 9998
  Considering libphonon4qt5experimental-dev:amd64 1 as a solution to builddeps:plasma-workspace:amd64 9998
  Considering libphonon4qt5experimental-dev:amd64 1 as a solution to builddeps:plasma-workspace:amd64 9998
Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
 
The following packages have unmet dependencies:
 builddeps:plasma-desktop : Depends: libphonon4qt5-dev (>= 4.6.60) but it is not going to be installed
                            Depends: libphonon4qt5experimental-dev but it is not going to be installed
 builddeps:plasma-workspace : Depends: libphonon4qt5-dev (>= 4:4.8.0-5) but it is not going to be installed
                              Depends: libphonon4qt5experimental-dev but it is not going to be installed
E: Unable to correct problems, you have held broken packages.


Sorted over IRC.