diff --git a/includes/pipeline/compiler.hpp b/includes/pipeline/compiler.hpp
index ff9a7de..5d4cfb1 100644
--- a/includes/pipeline/compiler.hpp
+++ b/includes/pipeline/compiler.hpp
@@ -3,7 +3,7 @@
 
 #include "xna/default.hpp"
 #include "xna/csharp/stream.hpp"
-#include "pipeline-enums.hpp"
+#include "enums.hpp"
 #include "default.hpp"
 #include <stack>
 
diff --git a/includes/pipeline/default.hpp b/includes/pipeline/default.hpp
index 0d8236b..8b27adc 100644
--- a/includes/pipeline/default.hpp
+++ b/includes/pipeline/default.hpp
@@ -6,9 +6,13 @@
 namespace xna {
 	class ContentTypeWriter;
 	class ContentTypeWriterFactory;
+	class ContentCompiler;
+	class ContentWriter;
 
 	using P_ContentTypeWriter = sptr<ContentTypeWriter>;
 	using P_ContentTypeWriterFactory = sptr<ContentTypeWriterFactory>;
+	using P_ContentCompiler = sptr<ContentCompiler>;
+	using P_ContentWriter = sptr<ContentWriter>;
 }
 
 #endif
\ No newline at end of file
diff --git a/includes/xna/csharp/stream.hpp b/includes/xna/csharp/stream.hpp
index 527a4db..05e707a 100644
--- a/includes/xna/csharp/stream.hpp
+++ b/includes/xna/csharp/stream.hpp
@@ -87,6 +87,8 @@ namespace xna {
 	//A simplified port of the System.IO.MemoryStream.
 	class MemoryStream : public Stream {
 	public:
+		constexpr MemoryStream(){}
+
 		constexpr MemoryStream(std::vector<uint8_t> const& bytes):
 			_buffer(bytes), 
 			_length(static_cast<int64_t>(bytes.size())){}