fatal error C1506: unrecoverable block scoping error

[Stormy]

when I compile my program I get "fatal error C1506: unrecoverable block
scoping error". Can anyone tell me why? Thank you very much in advance.
namespace unManaged
{
template<class L>
class Mytemplate : public myUnManagedClas sA
{
};
__nogc class A : public OD_myUnManagedC lassB
{
};
__nogc class B : public ODN_Mytemplate< A>
{
};
}

[Stormy]

Sorry, following is my code......
namespace unManaged
{
template<class L>
class Mytemplate : public myUnManagedClas sA
{
};
__nogc class A : public myUnManagedClas sB
{
};
__nogc class B : public Mytemplate<A>
{
}
}

[ismailp]

there is no semicolon after B's declaration.

this should work fine. what about myUnmanagedClas sA and
myUnmanagedClas sB? are they proper?

Ismail