c# - Unconstrained Melody error -

i installed nuget package jon skeet's unconstrained melody project, when attempt use it, error when compile:

type parameter 't' inherits conflicting constraints 'unconstrainedmelody.ienumconstraint' , 'system.valuetype'

function definition:

public void setenum<t>() t : struct, ienumconstraint {} 

am missing something? should not use nuget package?

i wrong, appears while library uses ienumconstraint internally, , gets work postbuild steps described in article, not provide magic consume ienumconstraint directly own methods.

the getvalues<t> method described in post 1 of several methods provided unconstrainedmelody.enums class. there other objects , methods available well.

if wanted constrain own generic methods enums, follow same steps jon used build library, on own library. there this example in comments of how postsharp.