I am following this tutorial, Unreal Engine 4 C++ Tutorial Version 4.0.2: Basic Artificial Intelligence - YouTube im sure many people are aware of it.
However i have found a strange issue when i create a controller, if i add a controller via the add code to project wizard and then try and build the project i get the following errors
1>------ Build started: Project: UnrealSpaceGame, Configuration: Development_Editor x64 ------
1> Parsing headers for UnrealSpaceGameEditor
1> Reflection code generation finished for UnrealSpaceGameEditor and took 2.187
1> Performing 3 actions (max 4 parallel jobs)
1> UnrealSpaceGame.generated.cpp
1> MyAIControllerTest.cpp
1> [3/3] link.exe UE4Editor-UnrealSpaceGame.dll
1> Creating library D:\UnrealSpaceGame\Intermediate\Build\Win64\UnrealSpaceGameEditor\Development\UE4Editor-UnrealSpaceGame.lib and object D:\UnrealSpaceGame\Intermediate\Build\Win64\UnrealSpaceGameEditor\Development\UE4Editor-UnrealSpaceGame.exp
1>MyAIControllerTest.cpp.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: __cdecl AAIController::AAIController(class FPostConstructInitializeProperties const &)" (__imp_??0AAIController@@QEAA@AEBVFPostConstructInitializeProperties@@@Z) referenced in function "public: __cdecl AMyAIControllerTest::AMyAIControllerTest(class FPostConstructInitializeProperties const &)" (??0AMyAIControllerTest@@QEAA@AEBVFPostConstructInitializeProperties@@@Z)
1>MyAIControllerTest.cpp.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: virtual __cdecl AAIController::~AAIController(void)" (__imp_??1AAIController@@UEAA@XZ) referenced in function "public: virtual __cdecl AMyAIControllerTest::~AMyAIControllerTest(void)" (??1AMyAIControllerTest@@UEAA@XZ)
1>UnrealSpaceGame.generated.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: virtual __cdecl AAIController::~AAIController(void)" (__imp_??1AAIController@@UEAA@XZ)
1>MyAIControllerTest.cpp.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: __cdecl AAIController::AAIController(class AAIController const &)" (__imp_??0AAIController@@QEAA@AEBV0@@Z) referenced in function "public: __cdecl AMyAIControllerTest::AMyAIControllerTest(class AMyAIControllerTest const &)" (??0AMyAIControllerTest@@QEAA@AEBV0@@Z)
1>UnrealSpaceGame.generated.cpp.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) public: __cdecl AAIController::AAIController(class AAIController const &)" (__imp_??0AAIController@@QEAA@AEBV0@@Z)
1>MyAIControllerTest.cpp.obj : error LNK2001: unresolved external symbol "public: virtual void __cdecl AAIController::ClearFocus(unsigned char)" (?ClearFocus@AAIController@@UEAAXE@Z)
1>UnrealSpaceGame.generated.cpp.obj : error LNK2019: unresolved external symbol "public: virtual void __cdecl AAIController::ClearFocus(unsigned char)" (?ClearFocus@AAIController@@UEAAXE@Z) referenced in function "class UFunction * __cdecl Z_Construct_UFunction_AUnrealSpaceGameProjectile_OnHit(void)" (?Z_Construct_UFunction_AUnrealSpaceGameProjectile_OnHit@@YAPEAVUFunction@@XZ)
1>MyAIControllerTest.cpp.obj : error LNK2001: unresolved external symbol "public: virtual void __cdecl AAIController::DisplayDebug(class UCanvas *,class FDebugDisplayInfo const &,float &,float &)" (?DisplayDebug@AAIController@@UEAAXPEAVUCanvas@@AEBVFDebugDisplayInfo@@AEAM2@Z)
1>UnrealSpaceGame.generated.cpp.obj : error LNK2019: unresolved external symbol "public: virtual void __cdecl AAIController::DisplayDebug(class UCanvas *,class FDebugDisplayInfo const &,float &,float &)" (?DisplayDebug@AAIController@@UEAAXPEAVUCanvas@@AEBVFDebugDisplayInfo@@AEAM2@Z) referenced in function "class UFunction * __cdecl Z_Construct_UFunction_AUnrealSpaceGameProjectile_OnHit(void)" (?Z_Construct_UFunction_AUnrealSpaceGameProjectile_OnHit@@YAPEAVUFunction@@XZ)
1>MyAIControllerTest.cpp.obj : error LNK2001: unresolved external symbol "public: virtual class FString __cdecl AAIController::GetDebugIcon(void)const " (?GetDebugIcon@AAIController@@UEBA?AVFString@@XZ)
1>UnrealSpaceGame.generated.cpp.obj : error LNK2019: unresolved external symbol "public: virtual class FString __cdecl AAIController::GetDebugIcon(void)const " (?GetDebugIcon@AAIController@@UEBA?AVFString@@XZ) referenced in function "public: static void * __cdecl ANode::operator new(unsigned __int64,class UObject *,class FName,enum EObjectFlags)" (??2ANode@@SAPEAX_KPEAVUObject@@VFName@@W4EObjectFlags@@@Z)
1>MyAIControllerTest.cpp.obj : error LNK2001: unresolved external symbol "public: virtual class FVector __cdecl AAIController::GetFocalPoint(void)const " (?GetFocalPoint@AAIController@@UEBA?AVFVector@@XZ)
1>UnrealSpaceGame.generated.cpp.obj : error LNK2019: unresolved external symbol "public: virtual class FVector __cdecl AAIController::GetFocalPoint(void)const " (?GetFocalPoint@AAIController@@UEBA?AVFVector@@XZ) referenced in function "void __cdecl `dynamic initializer for 'AutoInitializeAUnrealSpaceGameGameMode''(void)" (??__EAutoInitializeAUnrealSpaceGameGameMode@@YAXXZ)
1>MyAIControllerTest.cpp.obj : error LNK2001: unresolved external symbol "public: virtual void __cdecl AAIController::GetPlayerViewPoint(class FVector &,class FRotator &)const " (?GetPlayerViewPoint@AAIController@@UEBAXAEAVFVector@@AEAVFRotator@@@Z)
1>UnrealSpaceGame.generated.cpp.obj : error LNK2019: unresolved external symbol "public: virtual void __cdecl AAIController::GetPlayerViewPoint(class FVector &,class FRotator &)const " (?GetPlayerViewPoint@AAIController@@UEBAXAEAVFVector@@AEAVFRotator@@@Z) referenced in function "void __cdecl GetPrivateStaticClassBody<class ANode>(wchar_t const *,wchar_t const *,class UClass * &,void (__cdecl*)(void))" (??$GetPrivateStaticClassBody@VANode@@@@YAXPEB_W0AEAPEAVUClass@@P6AXXZ@Z)
1>MyAIControllerTest.cpp.obj : error LNK2001: unresolved external symbol "public: virtual void __cdecl AAIController::GrabDebugSnapshot(struct FVisLogEntry *)const " (?GrabDebugSnapshot@AAIController@@UEBAXPEAUFVisLogEntry@@@Z)
1>UnrealSpaceGame.generated.cpp.obj : error LNK2019: unresolved external symbol "public: virtual void __cdecl AAIController::GrabDebugSnapshot(struct FVisLogEntry *)const " (?GrabDebugSnapshot@AAIController@@UEBAXPEAUFVisLogEntry@@@Z) referenced in function "class UClass * __cdecl Z_Construct_UClass_AEnemyCharacter(void)" (?Z_Construct_UClass_AEnemyCharacter@@YAPEAVUClass@@XZ)
1>MyAIControllerTest.cpp.obj : error LNK2001: unresolved external symbol "public: virtual void __cdecl AAIController::InitNavigationControl(class UNavigationComponent * &,class UPathFollowingComponent * &)" (?InitNavigationControl@AAIController@@UEAAXAEAPEAVUNavigationComponent@@AEAPEAVUPathFollowingComponent@@@Z)
1>UnrealSpaceGame.generated.cpp.obj : error LNK2019: unresolved external symbol "public: virtual void __cdecl AAIController::InitNavigationControl(class UNavigationComponent * &,class UPathFollowingComponent * &)" (?InitNavigationControl@AAIController@@UEAAXAEAPEAVUNavigationComponent@@AEAPEAVUPathFollowingComponent@@@Z) referenced in function "void __cdecl GetPrivateStaticClassBody<class AUnrealSpaceGameCharacter>(wchar_t const *,wchar_t const *,class UClass * &,void (__cdecl*)(void))" (??$GetPrivateStaticClassBody@VAUnrealSpaceGameCharacter@@@@YAXPEB_W0AEAPEAVUClass@@P6AXXZ@Z)
1>MyAIControllerTest.cpp.obj : error LNK2001: unresolved external symbol "public: virtual bool __cdecl AAIController::LineOfSightTo(class AActor const *,class FVector,bool)const " (?LineOfSightTo@AAIController@@UEBA_NPEBVAActor@@VFVector@@_N@Z)
1>UnrealSpaceGame.generated.cpp.obj : error LNK2019: unresolved external symbol "public: virtual bool __cdecl AAIController::LineOfSightTo(class AActor const *,class FVector,bool)const " (?LineOfSightTo@AAIController@@UEBA_NPEBVAActor@@VFVector@@_N@Z) referenced in function "void __cdecl GetPrivateStaticClassBody<class AUnrealSpaceGameHUD>(wchar_t const *,wchar_t const *,class UClass * &,void (__cdecl*)(void))" (??$GetPrivateStaticClassBody@VAUnrealSpaceGameHUD@@@@YAXPEB_W0AEAPEAVUClass@@P6AXXZ@Z)
1>MyAIControllerTest.cpp.obj : error LNK2001: unresolved external symbol "public: virtual void __cdecl AAIController::OnMoveCompleted(struct FAIRequestID,enum EPathFollowingResult::Type)" (?OnMoveCompleted@AAIController@@UEAAXUFAIRequestID@@W4Type@EPathFollowingResult@@@Z)
1>UnrealSpaceGame.generated.cpp.obj : error LNK2019: unresolved external symbol "public: virtual void __cdecl AAIController::OnMoveCompleted(struct FAIRequestID,enum EPathFollowingResult::Type)" (?OnMoveCompleted@AAIController@@UEAAXUFAIRequestID@@W4Type@EPathFollowingResult@@@Z) referenced in function "void __cdecl GetPrivateStaticClassBody<class AUnrealSpaceGameProjectile>(wchar_t const *,wchar_t const *,class UClass * &,void (__cdecl*)(void))" (??$GetPrivateStaticClassBody@VAUnrealSpaceGameProjectile@@@@YAXPEB_W0AEAPEAVUClass@@P6AXXZ@Z)
1>MyAIControllerTest.cpp.obj : error LNK2001: unresolved external symbol "public: virtual void __cdecl AAIController::Possess(class APawn *)" (?Possess@AAIController@@UEAAXPEAVAPawn@@@Z)
1>UnrealSpaceGame.generated.cpp.obj : error LNK2019: unresolved external symbol "public: virtual void __cdecl AAIController::Possess(class APawn *)" (?Possess@AAIController@@UEAAXPEAVAPawn@@@Z) referenced in function "class UClass * __cdecl Z_Construct_UClass_ANode(void)" (?Z_Construct_UClass_ANode@@YAPEAVUClass@@XZ)
1>MyAIControllerTest.cpp.obj : error LNK2001: unresolved external symbol "public: virtual void __cdecl AAIController::PostInitializeComponents(void)" (?PostInitializeComponents@AAIController@@UEAAXXZ)
1>UnrealSpaceGame.generated.cpp.obj : error LNK2019: unresolved external symbol "public: virtual void __cdecl AAIController::PostInitializeComponents(void)" (?PostInitializeComponents@AAIController@@UEAAXXZ) referenced in function "class UClass * __cdecl Z_Construct_UClass_ANode(void)" (?Z_Construct_UClass_ANode@@YAPEAVUClass@@XZ)
1>MyAIControllerTest.cpp.obj : error LNK2001: unresolved external symbol "public: virtual struct FAIRequestID __cdecl AAIController::RequestMove(class TSharedPtr<struct FNavigationPath,1>,class AActor *,float,bool,class TSharedPtr<struct FMoveRequestCustomData,1>)" (?RequestMove@AAIController@@UEAA?AUFAIRequestID@@V?$TSharedPtr@UFNavigationPath@@$00@@PEAVAActor@@M_NV?$TSharedPtr@UFMoveRequestCustomData@@$00@@@Z)
1>UnrealSpaceGame.generated.cpp.obj : error LNK2001: unresolved external symbol "public: virtual struct FAIRequestID __cdecl AAIController::RequestMove(class TSharedPtr<struct FNavigationPath,1>,class AActor *,float,bool,class TSharedPtr<struct FMoveRequestCustomData,1>)" (?RequestMove@AAIController@@UEAA?AUFAIRequestID@@V?$TSharedPtr@UFNavigationPath@@$00@@PEAVAActor@@M_NV?$TSharedPtr@UFMoveRequestCustomData@@$00@@@Z)
1>MyAIControllerTest.cpp.obj : error LNK2001: unresolved external symbol "public: virtual void __cdecl AAIController::Reset(void)" (?Reset@AAIController@@UEAAXXZ)
1>UnrealSpaceGame.generated.cpp.obj : error LNK2001: unresolved external symbol "public: virtual void __cdecl AAIController::Reset(void)" (?Reset@AAIController@@UEAAXXZ)
1>MyAIControllerTest.cpp.obj : error LNK2001: unresolved external symbol "public: virtual bool __cdecl AAIController::RunBehaviorTree(class UBehaviorTree *)" (?RunBehaviorTree@AAIController@@UEAA_NPEAVUBehaviorTree@@@Z)
1>UnrealSpaceGame.generated.cpp.obj : error LNK2001: unresolved external symbol "public: virtual bool __cdecl AAIController::RunBehaviorTree(class UBehaviorTree *)" (?RunBehaviorTree@AAIController@@UEAA_NPEAVUBehaviorTree@@@Z)
1>MyAIControllerTest.cpp.obj : error LNK2001: unresolved external symbol "public: virtual void __cdecl AAIController::SetFocalPoint(class FVector,bool,unsigned char)" (?SetFocalPoint@AAIController@@UEAAXVFVector@@_NE@Z)
1>UnrealSpaceGame.generated.cpp.obj : error LNK2001: unresolved external symbol "public: virtual void __cdecl AAIController::SetFocalPoint(class FVector,bool,unsigned char)" (?SetFocalPoint@AAIController@@UEAAXVFVector@@_NE@Z)
1>MyAIControllerTest.cpp.obj : error LNK2001: unresolved external symbol "public: virtual void __cdecl AAIController::SetFocus(class AActor *,unsigned char)" (?SetFocus@AAIController@@UEAAXPEAVAActor@@E@Z)
1>UnrealSpaceGame.generated.cpp.obj : error LNK2001: unresolved external symbol "public: virtual void __cdecl AAIController::SetFocus(class AActor *,unsigned char)" (?SetFocus@AAIController@@UEAAXPEAVAActor@@E@Z)
1>MyAIControllerTest.cpp.obj : error LNK2001: unresolved external symbol "public: virtual void __cdecl AAIController::StopMovement(void)" (?StopMovement@AAIController@@UEAAXXZ)
1>UnrealSpaceGame.generated.cpp.obj : error LNK2001: unresolved external symbol "public: virtual void __cdecl AAIController::StopMovement(void)" (?StopMovement@AAIController@@UEAAXXZ)
1>MyAIControllerTest.cpp.obj : error LNK2001: unresolved external symbol "public: virtual void __cdecl AAIController::Tick(float)" (?Tick@AAIController@@UEAAXM@Z)
1>UnrealSpaceGame.generated.cpp.obj : error LNK2001: unresolved external symbol "public: virtual void __cdecl AAIController::Tick(float)" (?Tick@AAIController@@UEAAXM@Z)
1>MyAIControllerTest.cpp.obj : error LNK2001: unresolved external symbol "public: virtual void __cdecl AAIController::UnPossess(void)" (?UnPossess@AAIController@@UEAAXXZ)
1>UnrealSpaceGame.generated.cpp.obj : error LNK2001: unresolved external symbol "public: virtual void __cdecl AAIController::UnPossess(void)" (?UnPossess@AAIController@@UEAAXXZ)
1>MyAIControllerTest.cpp.obj : error LNK2001: unresolved external symbol "public: virtual void __cdecl AAIController::UpdateControlRotation(float,bool)" (?UpdateControlRotation@AAIController@@UEAAXM_N@Z)
1>UnrealSpaceGame.generated.cpp.obj : error LNK2001: unresolved external symbol "public: virtual void __cdecl AAIController::UpdateControlRotation(float,bool)" (?UpdateControlRotation@AAIController@@UEAAXM_N@Z)
1>MyAIControllerTest.cpp.obj : error LNK2001: unresolved external symbol "public: virtual bool __cdecl AAIController::UseBlackboard(class UBlackboardData *)" (?UseBlackboard@AAIController@@UEAA_NPEAVUBlackboardData@@@Z)
1>UnrealSpaceGame.generated.cpp.obj : error LNK2001: unresolved external symbol "public: virtual bool __cdecl AAIController::UseBlackboard(class UBlackboardData *)" (?UseBlackboard@AAIController@@UEAA_NPEAVUBlackboardData@@@Z)
1>UnrealSpaceGame.generated.cpp.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) class UClass * __cdecl Z_Construct_UClass_AAIController(void)" (__imp_?Z_Construct_UClass_AAIController@@YAPEAVUClass@@XZ) referenced in function "class UClass * __cdecl Z_Construct_UClass_AMyAIControllerTest(void)" (?Z_Construct_UClass_AMyAIControllerTest@@YAPEAVUClass@@XZ)
1>UnrealSpaceGame.generated.cpp.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: static class UClass * __cdecl AAIController::StaticClass(void)" (__imp_?StaticClass@AAIController@@SAPEAVUClass@@XZ) referenced in function "void __cdecl GetPrivateStaticClassBody<class AMyAIControllerTest>(wchar_t const *,wchar_t const *,class UClass * &,void (__cdecl*)(void))" (??$GetPrivateStaticClassBody@VAMyAIControllerTest@@@@YAXPEB_W0AEAPEAVUClass@@P6AXXZ@Z)
1>D:\UnrealSpaceGame\Binaries\Win64\UE4Editor-UnrealSpaceGame.dll : fatal error LNK1120: 26 unresolved externals
1> -------- End Detailed Actions Stats -----------------------------------------------------------
1>ERROR : UBT error : Failed to produce item: D:\UnrealSpaceGame\Binaries\Win64\UE4Editor-UnrealSpaceGame.dll
1> Cumulative action seconds (4 processors): 0.00 building projects, 1.42 compiling, 0.00 creating app bundles, 0.00 generating debug info, 0.10 linking, 0.00 other
1> UBT execution time: 7.06 seconds
1>C:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\V120\Microsoft.MakeFile.Targets(38,5): error MSB3073: The command ""C:\Program Files\Unreal Engine\4.4\Engine\Build\BatchFiles\Build.bat" UnrealSpaceGameEditor Win64 Development "D:\UnrealSpaceGame\UnrealSpaceGame.uproject" -rocket" exited with code -1.
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
------------------------------------------------------------------------------------------------------------------------------------
I was able to create a empty character the same way and build the project fine. I could add the new class into the game. however i seem to be having big problems with adding the controller and i had a simular problem with a BTTask class earlier.
Any suggestions? i am using version 4.4 and am using perforce with only content, source and config files- as well as the .uproject file on the server. Appreciate any clues at all, thanks!
An empty controller should work? i added in the code from the tutorial video, and i still return this error (adding includes to the blackboard components etc) . Please help! Very frustrating! i have working AI in blueprints, but want to make the base in C++ so i have more options!