C2653: 'GUI' : is not a class or namespace - c++

Question

Seriously getting on my nerves. This code was working just fine earlier, I restarted the IDE (Visual Studio 2010) and now suddenly the code goes bonkers on me. The error log is huge, and I have no idea what's causing it as the code seems to be pretty much correct.
1>ClCompile:
1> uicont.cpp
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\uicontext.h(21): error C2653: 'GUI' : is not a class or namespace name
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\uicontext.h(21): error C2143: syntax error : missing ';' before '*'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\uicontext.h(21): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\uicontext.h(21): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
Many more, but I assume this is what's causing the error. Here is the source code for the files that are having the most problems.
Mage/GUI/UIContext.h
#include <OGRE/OgreString.h>
#include <OGRE/OgreOverlay.h>
#include <OGRE/OgreOverlayManager.h>
#include <vector>
#include <Mage/GUI/Frame.h>
#ifndef __H_MAGE_UICONTEXT
#define __H_MAGE_UICONTEXT
namespace Mage {
class UIContext {
public:
UIContext();
~UIContext();
GUI::Frame* createFrame(Ogre::String, Ogre::Vector2, double, double);
void attachFrame(Ogre::OverlayContainer*);
private:
Ogre::Overlay* m_Overlay;
std::vector<GUI::Frame*> m_Frames;
};
}
#endif // __H_MAGE_UICONTEXT
Mage/GUI/Frame.h
#include <OGRE/OgreVector2.h>
#include <OGRE/OgreOverlayContainer.h>
#include <OGRE/OgreOverlayManager.h>
#include <OGRE/OgreString.h>
#include <Mage/GUI/UIContext.h>
#ifndef __H_MAGE_GUI_FRAME
#define __H_MAGE_GUI_FRAME
namespace Mage {
namespace GUI {
class Frame {
public:
Frame(Mage::UIContext*, Ogre::String, Ogre::Vector2, double, double);
private:
Ogre::OverlayContainer* m_Panel;
};
}
}
#endif // __H_MAGE_GUI_FRAME
I also included the WHOLE error log, but that just seems to be everything going down the gutter as this part fails. I haven't even touched that code and it has always compiled fine. Would it be needed to solve the problem, I'll include that as well; those are huge files though.
1>------ Build started: Project: Mage3D, Configuration: Debug Win32 ------
1>Build started 17/08/2012 19:43:22.
1>InitializeBuildStatus:
1> Touching "Debug\Mage3D.unsuccessfulbuild".
1>ClCompile:
1> uicont.cpp
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\uicontext.h(21): error C2653: 'GUI' : is not a class or namespace name
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\uicontext.h(21): error C2143: syntax error : missing ';' before '*'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\uicontext.h(21): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\uicontext.h(21): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\uicontext.h(21): warning C4183: 'createFrame': missing return type; assumed to be a member function returning 'int'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\uicontext.h(26): error C2653: 'GUI' : is not a class or namespace name
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\uicontext.h(26): error C2065: 'Frame' : undeclared identifier
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\uicontext.h(26): error C2059: syntax error : '>'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\uicontext.h(27): error C2143: syntax error : missing ';' before '}'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\uicontext.h(28): error C2143: syntax error : missing ';' before '}'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\frame.h(14): error C2143: syntax error : missing ';' before '{'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\frame.h(15): error C2143: syntax error : missing ';' before '{'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\frame.h(16): error C2143: syntax error : missing ';' before '{'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\frame.h(18): error C2143: syntax error : missing ',' before ')'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\frame.h(23): error C2143: syntax error : missing ';' before '}'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\frame.h(24): error C2143: syntax error : missing ';' before '}'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\frame.h(25): error C2143: syntax error : missing ';' before '}'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\uicontroller.h(16): error C2143: syntax error : missing ';' before '{'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\uicontroller.h(18): error C2143: syntax error : missing ';' before '}'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\uicontroller.h(19): error C2039: 'UIController' : is not a member of 'Mage'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\uicontroller.h(19): error C2065: 'UIController' : undeclared identifier
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\uicontroller.h(19): error C2990: 'Ogre::Singleton' : non-class template has already been declared as a class template
1> c:\users\jesse\documents\visual studio 2010\projects\mage3d\ogre3d\include\ogre\ogresingleton.h(65) : see declaration of 'Ogre::Singleton'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\uicontroller.h(22): error C2143: syntax error : missing ';' before '{'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\uicontroller.h(23): error C3413: 'Mage::UIContext::UIController' : invalid explicit instantiation
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\uicontroller.h(37): error C2143: syntax error : missing ';' before '{'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\uicontroller.h(38): error C2143: syntax error : missing ';' before '}'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\gui\uicont.cpp(4): error C2039: 'UIController' : is not a member of 'Mage'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\gui\uicont.cpp(4): error C2039: 'UIController' : is not a member of 'Mage'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\gui\uicont.cpp(4): error C2065: 'UIController' : undeclared identifier
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\gui\uicont.cpp(4): error C2955: 'Ogre::Singleton' : use of class template requires template argument list
1> c:\users\jesse\documents\visual studio 2010\projects\mage3d\ogre3d\include\ogre\ogresingleton.h(65) : see declaration of 'Ogre::Singleton'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\gui\uicont.cpp(6): error C2143: syntax error : missing ';' before '{'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\gui\uicont.cpp(7): error C2653: 'UIController' : is not a class or namespace name
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\gui\uicont.cpp(7): error C2143: syntax error : missing ';' before '{'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\gui\uicont.cpp(10): error C2143: syntax error : missing ';' before '}'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\gui\uicont.cpp(12): error C2653: 'UIController' : is not a class or namespace name
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\gui\uicont.cpp(12): error C2143: syntax error : missing ';' before '{'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\gui\uicont.cpp(13): error C2143: syntax error : missing ',' before ')'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\gui\uicont.cpp(15): error C2143: syntax error : missing ';' before '}'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\gui\uicont.cpp(17): error C2653: 'UIController' : is not a class or namespace name
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\gui\uicont.cpp(17): error C2143: syntax error : missing ';' before '{'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\gui\uicont.cpp(19): error C2143: syntax error : missing ';' before '}'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\gui\uicont.cpp(21): error C2653: 'UIController' : is not a class or namespace name
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\gui\uicont.cpp(21): error C2143: syntax error : missing ';' before '{'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\gui\uicont.cpp(24): error C2143: syntax error : missing ';' before '}'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\gui\uicont.cpp(26): error C2653: 'UIController' : is not a class or namespace name
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\gui\uicont.cpp(26): error C2143: syntax error : missing ';' before '{'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\gui\uicont.cpp(37): error C2143: syntax error : missing ';' before '}'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\gui\uicont.cpp(39): error C2653: 'UIController' : is not a class or namespace name
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\gui\uicont.cpp(39): error C2143: syntax error : missing ';' before '{'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\gui\uicont.cpp(55): error C2143: syntax error : missing ',' before ')'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\gui\uicont.cpp(67): error C2143: syntax error : missing ',' before ')'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\gui\uicont.cpp(73): error C2143: syntax error : missing ';' before '}'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\gui\uicont.cpp(74): error C2143: syntax error : missing ';' before '}'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\gui\uicont.cpp(75): error C2143: syntax error : missing ';' before '}'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\gui\uicont.cpp(75): fatal error C1004: unexpected end-of-file found
1> luagui.cpp
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\frame.h(18): error C2039: 'UIContext' : is not a member of 'Mage'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\frame.h(18): error C2039: 'UIContext' : is not a member of 'Mage'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\frame.h(18): error C2061: syntax error : identifier 'UIContext'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\gui\luagui.cpp(76): warning C4244: 'argument' : conversion from 'lua_Number' to 'const Ogre::Real', possible loss of data
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\gui\luagui.cpp(76): warning C4244: 'argument' : conversion from 'lua_Number' to 'const Ogre::Real', possible loss of data
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\gui\luagui.cpp(77): error C2661: 'Mage::GUI::Frame::Frame' : no overloaded function takes 4 arguments
1> frame.cpp
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\frame.h(18): error C2039: 'UIContext' : is not a member of 'Mage'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\frame.h(18): error C2039: 'UIContext' : is not a member of 'Mage'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\frame.h(18): error C2061: syntax error : identifier 'UIContext'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\gui\frame.cpp(4): error C2511: 'Mage::GUI::Frame::Frame(Mage::UIContext *,Ogre::String,Ogre::Vector2,double,double)' : overloaded member function not found in 'Mage::GUI::Frame'
1> c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\frame.h(16) : see declaration of 'Mage::GUI::Frame'
1> context.cpp
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\uicontext.h(21): error C2653: 'GUI' : is not a class or namespace name
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\uicontext.h(21): error C2143: syntax error : missing ';' before '*'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\uicontext.h(21): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\uicontext.h(21): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\uicontext.h(21): warning C4183: 'createFrame': missing return type; assumed to be a member function returning 'int'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\uicontext.h(26): error C2653: 'GUI' : is not a class or namespace name
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\uicontext.h(26): error C2065: 'Frame' : undeclared identifier
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\uicontext.h(26): error C2059: syntax error : '>'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\uicontext.h(27): error C2143: syntax error : missing ';' before '}'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\uicontext.h(28): error C2143: syntax error : missing ';' before '}'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\frame.h(14): error C2143: syntax error : missing ';' before '{'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\frame.h(15): error C2143: syntax error : missing ';' before '{'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\frame.h(16): error C2143: syntax error : missing ';' before '{'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\frame.h(18): error C2143: syntax error : missing ',' before ')'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\frame.h(23): error C2143: syntax error : missing ';' before '}'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\frame.h(24): error C2143: syntax error : missing ';' before '}'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\mage3d\include\mage\gui\frame.h(25): error C2143: syntax error : missing ';' before '}'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\ogre3d\include\ogre\ogrepixelformat.h(34): error C2143: syntax error : missing ';' before '{'
1>c:\users\jesse\documents\visual studio 2010\projects\mage3d\ogre3d\include\ogre\ogrepixelformat.h(43): error C2143: syntax error : missing ';' before '{'
... snip, just more of these errors ...
1>
1>Build FAILED.
1>
1>Time Elapsed 00:00:11.44
========== Build: 0 succeeded, 1 failed, 3 up-to-date, 0 skipped ==========
Well I don't know anymore. Hopefully you guys at StackOverflow can help me out as you always do. You people see everything I swear, and that's why I love you so.

Answer 1

In Mage/GUI/UIContext.h you included "Mage/GUI/Frame.h" and after that in Mage/GUI/Frame.h you included "Mage/GUI/UIContext.h".
This is the reason why you get those errors.You should at least change one of those includes and it should be fine.

Answer 2

Answering my own question: a method of UIContext was looking for the class Mage::GUI::Frame, which did not exist. The constructor for the Frame class was looking for UIContext, which didn't exist either. Adding a prototype of the class before including the headers resolved that.