We host a web service .asmx (we cannot change this) on Linux/Mono
On Debian 7 - mono 3.12 it works
but on Debian 8 mono 4.2.3.4 Apache 2.4.10 we receive the following error just browsing the asmx
Strangely System.Runtime looks somehow linked to .NET CORE (but we do not use this framework)
After adding the required assemblies from .NET, finally it turnout to be a well know bug, already reported on SO.:
Web Services does not work in mono 4
This has been fixed, but quite likely it will be officially available on 4.4
System.Runtime is already existing in .NET 4.6.x.
You may be hitting a regression in Mono that the new xbuild versions have and that the old (from Mono 3.12) didn't. I think this regression has been fixed in mono master branch in this commit.
To check if I'm correct, you would need to compile mono yourself, or grab packages from the weekly/daily repository.
