error in configuring fbx sdk in visual studio 2015

[axp619]

I am trying to implement Fbx sdk in my project but it gives me a lot of unresolved external symbol errors. Reading some info online I found out that this is a problem of configuration but still I dont know what's wrong with that I did. This is the output:

error LNK2019: unresolved external symbol "void __cdecl fbxsdk::_FbxAssert(char const *,char const *,unsigned int,bool,char const *,...)" (?_FbxAssert@fbxsdk@@YAXPEBD0I_N0ZZ) referenced in function "public: int & __cdecl fbxsdk::FbxArray<int>::operator[](int)const " (??A?$FbxArray@H@fbxsdk@@QEBAAEAHH@Z)
1>SkinnedMesh.obj : error LNK2019: unresolved external symbol "void * __cdecl fbxsdk::FbxMalloc(unsigned __int64)" (?FbxMalloc@fbxsdk@@YAPEAX_K@Z) referenced in function "public: void * __cdecl fbxsdk::FbxBaseAllocator::AllocateRecords(unsigned __int64)" (?AllocateRecords@FbxBaseAllocator@fbxsdk@@QEAAPEAX_K@Z)
1>SkinnedMesh.obj : error LNK2019: unresolved external symbol "void __cdecl fbxsdk::FbxFree(void *)" (?FbxFree@fbxsdk@@YAXPEAX@Z) referenced in function "public: void __cdecl fbxsdk::FbxBaseAllocator::FreeMemory(void *)" (?FreeMemory@FbxBaseAllocator@fbxsdk@@QEAAXPEAX@Z)
1>SkinnedMesh.obj : error LNK2019: unresolved external symbol "public: __cdecl fbxsdk::FbxString::FbxString(class fbxsdk::FbxString const &)" (??0FbxString@fbxsdk@@QEAA@AEBV01@@Z) referenced in function "public: __cdecl fbxsdk::FbxPair<class fbxsdk::FbxString const ,class fbxsdk::FbxObject *>::FbxPair<class fbxsdk::FbxString const ,class fbxsdk::FbxObject *>(class fbxsdk::FbxPair<class fbxsdk::FbxString const ,class fbxsdk::FbxObject *> const &)" (??0?$FbxPair@$$CBVFbxString@fbxsdk@@PEAVFbxObject@2@@fbxsdk@@QEAA@AEBV01@@Z)
1>SkinnedMesh.obj : error LNK2019: unresolved external symbol "public: __cdecl fbxsdk::FbxString::~FbxString(void)" (??1FbxString@fbxsdk@@QEAA@XZ) referenced in function "public: __cdecl fbxsdk::FbxPair<class fbxsdk::FbxString const ,class fbxsdk::FbxObject *>::~FbxPair<class fbxsdk::FbxString const ,class fbxsdk::FbxObject *>(void)" (??1?$FbxPair@$$CBVFbxString@fbxsdk@@PEAVFbxObject@2@@fbxsdk@@QEAA@XZ)
1>SkinnedMesh.obj : error LNK2019: unresolved external symbol "public: __cdecl fbxsdk::FbxString::operator char const *(void)const " (??BFbxString@fbxsdk@@QEBAPEBDXZ) referenced in function "public: int __cdecl fbxsdk::FbxStringCompare::operator()(class fbxsdk::FbxString const &,class fbxsdk::FbxString const &)const " (??RFbxStringCompare@fbxsdk@@QEBAHAEBVFbxString@1@0@Z)
1>SkinnedMesh.obj : error LNK2019: unresolved external symbol "public: int __cdecl fbxsdk::FbxString::Compare(char const *)const " (?Compare@FbxString@fbxsdk@@QEBAHPEBD@Z) referenced in function "public: int __cdecl fbxsdk::FbxStringCompare::operator()(class fbxsdk::FbxString const &,class fbxsdk::FbxString const &)const " (??RFbxStringCompare@fbxsdk@@QEBAHAEBVFbxString@1@0@Z)
1>SkinnedMesh.obj : error LNK2019: unresolved external symbol "public: void __cdecl fbxsdk::FbxObject::Destroy(bool)" (?Destroy@FbxObject@fbxsdk@@QEAAX_N@Z) referenced in function "private: long __cdecl SkinnedMesh::LoadFBX(class std::vector<struct SkinnedMesh::MyVertex,class std::allocator<struct SkinnedMesh::MyVertex> > *)" (?LoadFBX@SkinnedMesh@@AEAAJPEAV?$vector@UMyVertex@SkinnedMesh@@V?$allocator@UMyVertex@SkinnedMesh@@@std@@@std@@@Z)
1>SkinnedMesh.obj : error LNK2019: unresolved external symbol "public: static class fbxsdk::FbxManager * __cdecl fbxsdk::FbxManager::Create(void)" (?Create@FbxManager@fbxsdk@@SAPEAV12@XZ) referenced in function "private: long __cdecl SkinnedMesh::LoadFBX(class std::vector<struct SkinnedMesh::MyVertex,class std::allocator<struct SkinnedMesh::MyVertex> > *)" (?LoadFBX@SkinnedMesh@@AEAAJPEAV?$vector@UMyVertex@SkinnedMesh@@V?$allocator@UMyVertex@SkinnedMesh@@@std@@@std@@@Z)
1>SkinnedMesh.obj : error LNK2019: unresolved external symbol "public: static class fbxsdk::FbxIOSettings * __cdecl fbxsdk::FbxIOSettings::Create(class fbxsdk::FbxManager *,char const *)" (?Create@FbxIOSettings@fbxsdk@@SAPEAV12@PEAVFbxManager@2@PEBD@Z) referenced in function "private: long __cdecl SkinnedMesh::LoadFBX(class std::vector<struct SkinnedMesh::MyVertex,class std::allocator<struct SkinnedMesh::MyVertex> > *)" (?LoadFBX@SkinnedMesh@@AEAAJPEAV?$vector@UMyVertex@SkinnedMesh@@V?$allocator@UMyVertex@SkinnedMesh@@@std@@@std@@@Z)
1>SkinnedMesh.obj : error LNK2019: unresolved external symbol "public: static class fbxsdk::FbxImporter * __cdecl fbxsdk::FbxImporter::Create(class fbxsdk::FbxManager *,char const *)" (?Create@FbxImporter@fbxsdk@@SAPEAV12@PEAVFbxManager@2@PEBD@Z) referenced in function "private: long __cdecl SkinnedMesh::LoadFBX(class std::vector<struct SkinnedMesh::MyVertex,class std::allocator<struct SkinnedMesh::MyVertex> > *)" (?LoadFBX@SkinnedMesh@@AEAAJPEAV?$vector@UMyVertex@SkinnedMesh@@V?$allocator@UMyVertex@SkinnedMesh@@@std@@@std@@@Z)
1>SkinnedMesh.obj : error LNK2019: unresolved external symbol "public: int __cdecl fbxsdk::FbxNode::GetChildCount(bool)const " (?GetChildCount@FbxNode@fbxsdk@@QEBAH_N@Z) referenced in function "private: long __cdecl SkinnedMesh::LoadFBX(class std::vector<struct SkinnedMesh::MyVertex,class std::allocator<struct SkinnedMesh::MyVertex> > *)" (?LoadFBX@SkinnedMesh@@AEAAJPEAV?$vector@UMyVertex@SkinnedMesh@@V?$allocator@UMyVertex@SkinnedMesh@@@std@@@std@@@Z)
1>SkinnedMesh.obj : error LNK2019: unresolved external symbol "public: class fbxsdk::FbxNode * __cdecl fbxsdk::FbxNode::GetChild(int)" (?GetChild@FbxNode@fbxsdk@@QEAAPEAV12@H@Z) referenced in function "private: long __cdecl SkinnedMesh::LoadFBX(class std::vector<struct SkinnedMesh::MyVertex,class std::allocator<struct SkinnedMesh::MyVertex> > *)" (?LoadFBX@SkinnedMesh@@AEAAJPEAV?$vector@UMyVertex@SkinnedMesh@@V?$allocator@UMyVertex@SkinnedMesh@@@std@@@std@@@Z)
1>SkinnedMesh.obj : error LNK2019: unresolved external symbol "public: class fbxsdk::FbxNodeAttribute * __cdecl fbxsdk::FbxNode::GetNodeAttribute(void)" (?GetNodeAttribute@FbxNode@fbxsdk@@QEAAPEAVFbxNodeAttribute@2@XZ) referenced in function "private: long __cdecl SkinnedMesh::LoadFBX(class std::vector<struct SkinnedMesh::MyVertex,class std::allocator<struct SkinnedMesh::MyVertex> > *)" (?LoadFBX@SkinnedMesh@@AEAAJPEAV?$vector@UMyVertex@SkinnedMesh@@V?$allocator@UMyVertex@SkinnedMesh@@@std@@@std@@@Z)
1>SkinnedMesh.obj : error LNK2019: unresolved external symbol "public: static class fbxsdk::FbxScene * __cdecl fbxsdk::FbxScene::Create(class fbxsdk::FbxManager *,char const *)" (?Create@FbxScene@fbxsdk@@SAPEAV12@PEAVFbxManager@2@PEBD@Z) referenced in function "private: long __cdecl SkinnedMesh::LoadFBX(class std::vector<struct SkinnedMesh::MyVertex,class std::allocator<struct SkinnedMesh::MyVertex> > *)" (?LoadFBX@SkinnedMesh@@AEAAJPEAV?$vector@UMyVertex@SkinnedMesh@@V?$allocator@UMyVertex@SkinnedMesh@@@std@@@std@@@Z)


I have been trying to fix this code for the last 10 hours but I cant get it fixed. Can you guys please help me?
Thank you