gentoo
Unable to install smuxi-0.10 with mono-4.0.1
Because mono-4 doesn't contain 3.5 templates which are required to compile smuxi (by solution file?)
mono 4 currently has additional upstream problems https://github.com/gentoo/dotnet/blob/master/profiles/package.mask
2.10.9-r2 is too old, and 3.12.1 have a bug - https://github.com/gentoo/dotnet/issues/68 upstream bug is claimed to be fixed (is it time to make new mono-4 .ebuild?).
Calculating dependencies... done! [ebuild UD ] dev-lang/mono-2.10.9-r2::gentoo [4.0.1.34::dotnet] USE="-minimal -pax_kernel -xen (-debug%) (-doc%) (-nls%*)" 33,241 KiB
Total: 1 package (1 downgrade), Size of downloads: 33,241 KiB
!!! Multiple package instances within a single package slot have been pulled !!! into the dependency graph, resulting in a slot conflict:
dev-lang/mono:0
(dev-lang/mono-2.10.9-r2:0/0::gentoo, ebuild scheduled for merge) pulled in by =dev-lang/mono-2.10.9-r2 (Argument)
(dev-lang/mono-4.0.1.34:0/0::dotnet, installed) pulled in by
>=dev-lang/mono-3.2.8 required by (dev-util/monodevelop-5.9.0.431:0/0::dotnet, installed)
^^ ^^^^^
(and 3 more with the same problem)