>>> Emerging : portage://games-action/apotheon-1.26v-r1:run?{[]}

These are the packages that would be merged, in order:

Calculating dependencies... done!

 └─step  1─┤ license portage://games-action/apotheon-1.26v-r1

 └─step  2─┤ verify  portage://dev-lang/mono-6.14.1-r1 (assumed installed)
             │ download  portage://app-crypt/mit-krb5-1.22.2-r2
             │           └─ file ─┤ 8.34 Mb  	 krb5-1.22.2.tar.gz
             │ download  portage://dev-dotnet/libgdiplus-6.2
             │           └─ file ─┤ 2.18 Mb  	 libgdiplus-6.2.tar.gz
             │ download  portage://dev-lang/duktape-2.7.0-r3
             │           └─ file ─┤ 1002.46 Kb  	 duktape-2.7.0.tar.xz
             │ download  portage://dev-lang/mono-6.14.1-r1
             │           └─ file ─┤ 289.62 Mb  	 mono-6.14.1.tar.xz
             │ download  portage://dev-lang/yasm-1.3.0-r2
             │           └─ file ─┤ 1.42 Mb  	 yasm-1.3.0.tar.gz
             │ download  portage://dev-libs/libev-4.33
             │           └─ file ─┤ 556.18 Kb  	 libev-4.33.tar.gz
             │ download  portage://dev-libs/libverto-0.3.2-r1
             │           └─ file ─┤ 374.20 Kb  	 libverto-0.3.2.tar.gz
             │ download  portage://games-action/apotheon-1.26v-r1
             │           └─ file ─┤ 594.74 Mb  	 apotheon-12302015-bin
             │ download  portage://media-libs/alsa-lib-1.2.16.1
             │           └─ file ─┤ 1.08 Mb  	 alsa-lib-1.2.16.1.tar.bz2
             │ download  portage://media-libs/alsa-topology-conf-1.2.5.1-r1
             │           └─ file ─┤ 11.42 Kb  	 alsa-topology-conf-1.2.5.1.tar.bz2
             │ download  portage://media-libs/alsa-ucm-conf-1.2.16.1
             │           └─ file ─┤ 82.32 Kb  	 alsa-ucm-conf-1.2.16.1.tar.bz2
             │ download  portage://media-libs/giflib-6.1.3
             │           └─ file ─┤ 459.55 Kb  	 giflib-6.1.3.tar.gz
             │ download  portage://media-libs/libexif-0.6.26
             │           └─ file ─┤ 1.27 Mb  	 libexif-0.6.26.tar.xz
             │ download  portage://media-libs/libogg-1.3.6
             │           └─ file ─┤ 429.64 Kb  	 libogg-1.3.6.tar.xz
             │ download  portage://media-libs/libsdl2-2.32.10
             │           └─ file ─┤ 7.28 Mb  	 SDL2-2.32.10.tar.gz
             │ download  portage://media-libs/libtheora-1.2.0-r1
             │           └─ file ─┤ 2.08 Kb  	 libtheora-1.2.0-armenc.c
             │                    │ 22.67 Kb  	 libtheora-1.2.0-armloop.s
             │                    │ 1.72 Mb  	 libtheora-1.2.0.tar.xz
             │ download  portage://media-libs/libvorbis-1.3.7-r2
             │           └─ file ─┤ 1.15 Mb  	 libvorbis-1.3.7.tar.xz
             │ download  portage://media-libs/openal-1.25.2
             │           └─ file ─┤ 1.08 Mb  	 openal-soft-1.25.2.tar.bz2
             │ download  portage://media-libs/sdl2-image-2.8.8
             │           └─ file ─┤ 6.56 Mb  	 SDL2_image-2.8.8.tar.gz
             │ download  portage://media-libs/theoraplay-0_pre20180524-r2
             │           └─ file ─┤ 14.16 Kb  	 theoraplay-0_pre20180524.tar.bz2
             │ download  portage://sys-apps/keyutils-1.6.3-r1
             │           └─ file ─┤ 133.81 Kb  	 keyutils-1.6.3.tar.gz
             │ download  portage://sys-auth/polkit-126-r3
             │           └─ file ─┤ 445.45 Kb  	 polkit-126.tar.gz
             │ download  portage://sys-auth/rtkit-0.14
             │           └─ file ─┤ 40.34 Kb  	 rtkit-v0.14.tar.bz2
             │ download  portage://x11-libs/libXcursor-1.2.3
             │           └─ file ─┤ 285.90 Kb  	 libXcursor-1.2.3.tar.xz

Total: 25 actions (1 license, 24 downloads), grouped into 2 steps.
       920.20 Mb to be downloaded.



>>> Assumptions taken during proving & planning:

  License acceptance (1 package):
  Add to /etc/portage/package.license:
    ==games-action/apotheon-1.26v-r1 all-rights-reserved


Error The proof for your build plan contains domain assumptions. Please verify:


>>> Domain assumptions

- Other: 
  unreachable(portage://dev-lang/mono-6.14.1-r1:install,grouped_package_dependency(no,dev-dotnet,libgdiplus,[package_dependency(install,no,dev-dotnet,libgdiplus,greaterequal,version([6,0,2],,4,0,[],0,6.0.2),[],[])]):install)

- Other: 
  unreachable(portage://dev-lang/mono-6.14.1-r1:install,portage://dev-dotnet/libgdiplus-6.2:install)

>>> Cycle breaks (prover)

  portage://dev-lang/mono-6.14.1-r1:install