[Windows] error on exercise 1: '...' is not a member of '`global namespace''

[razetime]

I have installed opencl on windows with the help of visual studio devtools and vcpkg.

I cd'd into the folder Exercises/Exercise01 and I tried running the file with the following command:

cl.exe /nologo /W4 /DCL_TARGET_OPENCL_VERSION=100 /EHsc /IC:\dev\vcpkg\installed\x64-windows\include\ /IC:\Users\raghu\Documents\code\practice\opcl_data\Exercises\Cpp_common\ DeviceInfo.cpp /Fe:DeviceInfo /link /LIBPATH:C:\Users\raghu\Documents\code\soft\vcpkg\installed\x64-windows\lib OpenCL.lib

I did not use the makefile as it was incompatible with nmake. I got the following errors:

DeviceInfo.cpp
C:\Users\raghu\Documents\code\practice\opcl_data\Exercises\Cpp_common\cl.hpp(5363): error C2039: 'clEnqueueReadBufferRect': is not a member of '`global namespace''
C:\Users\raghu\Documents\code\practice\opcl_data\Exercises\Cpp_common\cl.hpp(5363): error C3861: 'clEnqueueReadBufferRect': identifier not found
C:\Users\raghu\Documents\code\practice\opcl_data\Exercises\Cpp_common\cl.hpp(5402): error C2039: 'clEnqueueWriteBufferRect': is not a member of '`global namespace''
C:\Users\raghu\Documents\code\practice\opcl_data\Exercises\Cpp_common\cl.hpp(5402): error C3861: 'clEnqueueWriteBufferRect': identifier not found
C:\Users\raghu\Documents\code\practice\opcl_data\Exercises\Cpp_common\cl.hpp(5440): error C2039: 'clEnqueueCopyBufferRect': is not a member of '`global namespace''
C:\Users\raghu\Documents\code\practice\opcl_data\Exercises\Cpp_common\cl.hpp(5440): error C3861: 'clEnqueueCopyBufferRect': identifier not found
C:\Users\raghu\Documents\code\practice\opcl_data\Exercises\Cpp_common\err_code.h(62): error C2065: 'CL_MISALIGNED_SUB_BUFFER_OFFSET': undeclared identifier
C:\Users\raghu\Documents\code\practice\opcl_data\Exercises\Cpp_common\err_code.h(64): error C2065: 'CL_EXEC_STATUS_ERROR_FOR_EVENTS_IN_WAIT_LIST': undeclared identifier
C:\Users\raghu\Documents\code\practice\opcl_data\Exercises\Cpp_common\err_code.h(134): error C2065: 'CL_INVALID_PROPERTY': undeclared identifier
C:\Users\raghu\Documents\code\practice\opcl_data\Exercises\Cpp_common\err_code.h(62): error C2051: case expression not constant
C:\Users\raghu\Documents\code\practice\opcl_data\Exercises\Cpp_common\err_code.h(64): error C2051: case expression not constant
C:\Users\raghu\Documents\code\practice\opcl_data\Exercises\Cpp_common\err_code.h(134): error C2051: case expression not constant
DeviceInfo.cpp(56): error C2065: 'CL_DEVICE_OPENCL_C_VERSION': undeclared identifier

What is a possible reason that this could happen? I am running Microsoft (R) C/C++ Optimizing Compiler Version 19.37.32824 for x64.