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  1. #1
    Join Date
    Dec 2010
    Posts
    907

    Unresolved Externals LNK2001

    Hi,
    I have written a small piece of code which mostly duplicated from another
    project. But I didn't understand why they have unresolved externals errors
    while I have defined them in the class.
    Any help would be greatly appreciated
    Thanks
    Jack

    OgreApp.h
    Code:
    #ifndef __OgreApp_h_
    #define __OgreApp_h_
    
    #include "BaseApplication.h"
    #if OGRE_PLATFORM == OGRE_PLATFORM_WIN32
    #include "../res/resource.h"
    #endif
    
    #include "OgreRecastDefinitions.h"
    #include "OgreRecast.h"
    #include "OgreDetourCrowd.h"
    #include "Character.h"
    #include "OgreDetourTileCache.h"
    #include "Obstacle.h"
    
    
    class OgreApp : public BaseApplication
    {
    public:
        OgreApp(void);
        virtual ~OgreApp(void);
    //...//
        enum QueryFlags {
           DEFAULT_MASK = 1u<<0,
           NAVMESH_MASK = 1u<<1,
           OBSTACLE_MASK= 1u<<2
        };
    
        /**
          * Set to true to draw visual debug clues related to Recast/Detour navigation
          **/
        static bool DEBUG_DRAW;
    
        /**
          * Set to true to use animated human characters, otherwise test cylinders will
          * be used to represent agents.
          **/
        static bool HUMAN_CHARACTERS;
    
        /**
          * Place obstacles in the scene as separate meshes.
          **/
        static bool OBSTACLES;
    
        /**
          * Determines whether demo app will build simple single navmesh,
          * or build a tiled navmesh using detourTileCache that supports temp obstacles.
          **/
        static bool SINGLE_NAVMESH;
    
        /**
          * Determines whether also dungeon mesh will be queried when clicking to set
          * begin position or destination.
          * Nearest point to navmesh within certain bounds will be found.
          * Set to false to only query points exactly on the navmesh.
          **/
        static bool RAYCAST_SCENE;
    
        /**
          * Determines whether agent steering mode of the demo will use a temp obstacle.
          * Set to false to steer an agent in the crowd instead.
          * Setting to true only has effect when SINGLE_NAVMESH is false.
          **/
        static bool TEMP_OBSTACLE_STEERING;
    
        /**
          * Determines whether the temporary obstacle placing demo places convex shapes
          * on the navmesh.
          * Set to true to place boxes, set to false to place standard temporary obstacles
          * (simple cylinders).
          **/
        static bool COMPLEX_OBSTACLES;
    
        /**
          * Determines whether terrain demo will be shown or a demo in an interior dungeon
          * scene.
          **/
        static bool TERRAIN;
    
        /**
          * Determines whether paged crowds demo will be shown. If true the paged demo will
          * run, if false TERRAIN determines whether terrain or dungeon demo will be run.
          **/
        static bool PAGED;
    
    //...//
    
      
    
     };
    
    #endif // #ifndef __OgreApp_h_
    Code:
    Error	1	error LNK2001: unresolved external symbol "public: static bool OgreApp::HUMAN_CHARACTERS" (?HUMAN_CHARACTERS@OgreApp@@2_NA)	E:\Jacky\Documents\Visual Studio 2010\Projects\OgreApp\OgreApp\OgreRecastPagedCrowdApplication.obj	OgreApp
    Error	2	error LNK2001: unresolved external symbol "public: static bool OgreApp::HUMAN_CHARACTERS" (?HUMAN_CHARACTERS@OgreApp@@2_NA)	E:\Jacky\Documents\Visual Studio 2010\Projects\OgreApp\OgreApp\OgreRecastTerrainApplication.obj	OgreApp
    Error	3	error LNK2019: unresolved external symbol "public: static bool OgreApp::HUMAN_CHARACTERS" (?HUMAN_CHARACTERS@OgreApp@@2_NA) referenced in function "public: __thiscall OgreApp::OgreApp(void)" (??0OgreApp@@QAE@XZ)	E:\Jacky\Documents\Visual Studio 2010\Projects\OgreApp\OgreApp\OgreApp.obj	OgreApp
    Error	4	error LNK2001: unresolved external symbol "public: static bool OgreApp::SINGLE_NAVMESH" (?SINGLE_NAVMESH@OgreApp@@2_NA)	E:\Jacky\Documents\Visual Studio 2010\Projects\OgreApp\OgreApp\OgreRecastTerrainApplication.obj	OgreApp
    Error	5	error LNK2001: unresolved external symbol "public: static bool OgreApp::SINGLE_NAVMESH" (?SINGLE_NAVMESH@OgreApp@@2_NA)	E:\Jacky\Documents\Visual Studio 2010\Projects\OgreApp\OgreApp\OgreApp.obj	OgreApp
    Error	6	error LNK2001: unresolved external symbol "public: static bool OgreApp::RAYCAST_SCENE" (?RAYCAST_SCENE@OgreApp@@2_NA)	E:\Jacky\Documents\Visual Studio 2010\Projects\OgreApp\OgreApp\OgreRecastTerrainApplication.obj	OgreApp
    Error	7	error LNK2001: unresolved external symbol "public: static bool OgreApp::RAYCAST_SCENE" (?RAYCAST_SCENE@OgreApp@@2_NA)	E:\Jacky\Documents\Visual Studio 2010\Projects\OgreApp\OgreApp\OgreApp.obj	OgreApp
    Error	8	error LNK2001: unresolved external symbol "public: static bool OgreApp::COMPLEX_OBSTACLES" (?COMPLEX_OBSTACLES@OgreApp@@2_NA)	E:\Jacky\Documents\Visual Studio 2010\Projects\OgreApp\OgreApp\OgreApp.obj	OgreApp
    Error	9	error LNK2001: unresolved external symbol "public: static bool OgreApp::TEMP_OBSTACLE_STEERING" (?TEMP_OBSTACLE_STEERING@OgreApp@@2_NA)	E:\Jacky\Documents\Visual Studio 2010\Projects\OgreApp\OgreApp\OgreApp.obj	OgreApp
    Error	10	error LNK2001: unresolved external symbol "public: static bool OgreApp::PAGED" (?PAGED@OgreApp@@2_NA)	E:\Jacky\Documents\Visual Studio 2010\Projects\OgreApp\OgreApp\OgreApp.obj	OgreApp
    Error	11	error LNK2001: unresolved external symbol "public: static bool OgreApp::TERRAIN" (?TERRAIN@OgreApp@@2_NA)	E:\Jacky\Documents\Visual Studio 2010\Projects\OgreApp\OgreApp\OgreApp.obj	OgreApp
    Error	12	error LNK2001: unresolved external symbol "public: static bool OgreApp::OBSTACLES" (?OBSTACLES@OgreApp@@2_NA)	E:\Jacky\Documents\Visual Studio 2010\Projects\OgreApp\OgreApp\OgreApp.obj	OgreApp
    Error	13	error LNK2001: unresolved external symbol "public: static bool OgreApp::DEBUG_DRAW" (?DEBUG_DRAW@OgreApp@@2_NA)	E:\Jacky\Documents\Visual Studio 2010\Projects\OgreApp\OgreApp\OgreApp.obj	OgreApp
    Error	14	error LNK2001: unresolved external symbol "protected: static bool BaseApplication::DISABLE_MOUSE_GRAB" (?DISABLE_MOUSE_GRAB@BaseApplication@@1_NA)	E:\Jacky\Documents\Visual Studio 2010\Projects\OgreApp\OgreApp\OgreApp.obj	OgreApp
    Error	15	error LNK2001: unresolved external symbol "protected: static bool BaseApplication::RESTORE_CONFIG" (?RESTORE_CONFIG@BaseApplication@@1_NA)	E:\Jacky\Documents\Visual Studio 2010\Projects\OgreApp\OgreApp\OgreApp.obj	OgreApp
    Error	16	error LNK1120: 11 unresolved externals	E:\Jacky\Documents\Visual Studio 2010\Projects\OgreApp\OgreApp\bin\Debug\\OgreApp.exe	OgreApp
    Last edited by lucky6969b; May 20th, 2014 at 06:44 AM.

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