vs2015 compile error

[wanghuangang]

ver: vcglib-2023.12

//test code
#include
#include<vcg/complex/complex.h>
#include <wrap/io_trimesh/import_ply.h>
using namespace vcg;

class MyEdge;
class MyFace;
class MyVertex;
struct MyUsedTypes : public UsedTypes< Use::AsVertexType, Use::AsFaceType>{};

class MyVertex : public Vertex< MyUsedTypes, vertex::Coord3f, vertex::BitFlags >{};
class MyFace : public Face < MyUsedTypes, face::VertexRef, face::FFAdj, face::WedgeTexCoord2f, face::Mark, face::BitFlags > {};
class MyMesh : public tri::TriMesh< std::vector, std::vector >{};
int main() {
MyMesh m,tm;
tri::io::ImporterPLY::Open(m,"../../meshes/bunny10k_textured.ply");
std::cout << "Hello, World!" << std::endl;

return 0;

}

compile error :
D:\thirdcode\vcglib-2023.12\vcglib-2023.12\vcg/math/shot.h(157): warning C4346: 'vcg::Shot<S,RotationType>::ReferenceFrame': dependent name is not a type
D:\thirdcode\vcglib-2023.12\vcglib-2023.12\vcg/math/shot.h(157): note: prefix with 'typename' to indicate a type
D:\thirdcode\vcglib-2023.12\vcglib-2023.12\vcg/math/shot.h(163): note: see reference to class template instantiation 'vcg::Shot<S,RotationType>::ReferenceFrame' being compiled
D:\thirdcode\vcglib-2023.12\vcglib-2023.12\vcg/math/shot.h(157): error C2061: syntax error: identifier 'ReferenceFrame'
D:\thirdcode\vcglib-2023.12\vcglib-2023.12\vcg/math/shot.h(157): error C2805: binary 'operator ==' has too few parameters
D:\thirdcode\vcglib-2023.12\vcglib-2023.12\vcg/math/shot.h(158): warning C4346: 'vcg::Shot<S,RotationType>::ReferenceFrame': dependent name is not a type
D:\thirdcode\vcglib-2023.12\vcglib-2023.12\vcg/math/shot.h(158): note: prefix with 'typename' to indicate a type
D:\thirdcode\vcglib-2023.12\vcglib-2023.12\vcg/math/shot.h(158): error C2061: syntax error: identifier 'ReferenceFrame'
D:\thirdcode\vcglib-2023.12\vcglib-2023.12\vcg/math/shot.h(158): error C2805: binary 'operator !=' has too few parameters

vs2015 compile error;
but vs2019 complile sucess;