[b] C2061 grammar errors: identifier "DXGI_JPEG_AC_HUFFMAN_TABLE HitBallon" C: \ Program Files \ Windows (x86) Kits 10 \ \ Include \ 10.0.18362.0 \ um \ wincodec h 8173
Error (activities) E0020 undefined identifiers "DXGI_JPEG_AC_HUFFMAN_TABLE HitBallon" C: \ Program Files \ Windows (x86) Kits 10 \ \ Include \ 10.0.18362.0 \ um \ wincodec h 8173
Error (activities) E0020 undefined identifiers "DXGI_JPEG_DC_HUFFMAN_TABLE HitBallon" C: \ Program Files \ Windows (x86) Kits 10 \ \ Include \ 10.0.18362.0 \ um \ wincodec h 8178
Error (activities) E0020 undefined identifiers "DXGI_JPEG_QUANTIZATION_TABLE HitBallon" C: \ Program Files \ Windows (x86) Kits 10 \ \ Include \ 10.0.18362.0 \ um \ wincodec h 8183
Error (activities) E0020 undefined identifiers "DXGI_JPEG_AC_HUFFMAN_TABLE HitBallon" C: \ Program Files \ Windows (x86) Kits 10 \ \ Include \ 10.0.18362.0 \ um \ wincodec h 8362
Error (activities) E0020 undefined identifiers "DXGI_JPEG_DC_HUFFMAN_TABLE HitBallon" C: \ Program Files \ Windows (x86) Kits 10 \ \ Include \ 10.0.18362.0 \ um \ wincodec h 8367
Error (activities) E0020 undefined identifiers "DXGI_JPEG_QUANTIZATION_TABLE HitBallon" C: \ Program Files \ Windows (x86) Kits 10 \ \ Include \ 10.0.18362.0 \ um \ wincodec h 8372
C2061 grammar errors: identifier "DXGI_JPEG_DC_HUFFMAN_TABLE HitBallon" C: \ Program Files \ Windows (x86) Kits 10 \ \ Include \ 10.0.18362.0 \ um \ wincodec h 8178
C2061 grammar errors: identifier "DXGI_JPEG_QUANTIZATION_TABLE HitBallon" C: \ Program Files \ Windows (x86) Kits 10 \ \ Include \ 10.0.18362.0 \ um \ wincodec h 8183
C2061 grammar errors: identifier "DXGI_JPEG_AC_HUFFMAN_TABLE HitBallon" C: \ Program Files \ Windows (x86) Kits 10 \ \ Include \ 10.0.18362.0 \ um \ wincodec h 8362
C2061 grammar errors: identifier "DXGI_JPEG_DC_HUFFMAN_TABLE HitBallon" C: \ Program Files \ Windows (x86) Kits 10 \ \ Include \ 10.0.18362.0 \ um \ wincodec h 8367
C2061 grammar errors: identifier "DXGI_JPEG_QUANTIZATION_TABLE HitBallon" C: \ Program Files \ Windows (x86) Kits 10 \ \ Include \ 10.0.18362.0 \ um \ wincodec h 8372
C2061 grammar errors: identifier "DXGI_JPEG_AC_HUFFMAN_TABLE HitBallon" C: \ Program Files \ Windows (x86) Kits 10 \ \ Include \ 10.0.18362.0 \ um \ wincodec h 8173
C2061 grammar errors: identifier "DXGI_JPEG_DC_HUFFMAN_TABLE HitBallon" C: \ Program Files \ Windows (x86) Kits 10 \ \ Include \ 10.0.18362.0 \ um \ wincodec h 8178
C2061 grammar errors: identifier "DXGI_JPEG_QUANTIZATION_TABLE HitBallon" C: \ Program Files \ Windows (x86) Kits 10 \ \ Include \ 10.0.18362.0 \ um \ wincodec h 8183
C2061 grammar errors: identifier "DXGI_JPEG_AC_HUFFMAN_TABLE HitBallon" C: \ Program Files \ Windows (x86) Kits 10 \ \ Include \ 10.0.18362.0 \ um \ wincodec h 8362
C2061 grammar errors: identifier "DXGI_JPEG_DC_HUFFMAN_TABLE HitBallon" C: \ Program Files \ Windows (x86) Kits 10 \ \ Include \ 10.0.18362.0 \ um \ wincodec h 8367
C2061 grammar errors: identifier "DXGI_JPEG_QUANTIZATION_TABLE HitBallon" C: \ Program Files \ Windows (x86) Kits 10 \ \ Include \ 10.0.18362.0 \ um \ wincodec h 8372

For a period of time before learning the D2D, each D2D project configured the environment, can the normal use, but are now studying D3D, set DirectX relevant libraries and include directory to all projects can direct inheritance, do not need to whole project configuration, after reopen the D2D projects will say in the relevant libraries, and include directory conflict, so I deleted the D3D configuration environment instead of a single project configuration, then can run, but now I will once again open the D2D file like the one above error, strives for the great god answer ~