Trying to compile the code below in Workbench

//------------------------------------------------------------------------------------------------
[BaseContainerProps()]
class KSC_CooMatrix<Class T> : Managed
{
	[Attribute()]
	ref array<int> m_aRowIdcs;
	
	[Attribute()]
	ref array<int> m_aColIdcs;
	
	[Attribute()]
	ref array<T> m_Data;
}

//------------------------------------------------------------------------------------------------
[BaseContainerProps()]
class KSC_SomeDataMatrix : KSC_CooMatrix<float>
{
}

throws