[Mono-list] HashSet appears present but uslessly broken on Ubuntu

[Jiří Zárevúcký]

2009/4/6 monobug <funkyfredmale at hotmail.com>:
>
> Any ideas as to what is going on here?
>

1.2.6 is hopelessly old. Support for newer classes is not complete
there I guess.

>
> Note that I cannot update this ubuntu box easily. Any idea how this
> happened, and fixes beyond "just update via apt" would be appreciated.
>

You can try using a local copy of System.Core.dll from newer Mono. I
have no experience in mixing different versions of libraries, though,
so I have no idea whether it will work.