In MITK\ep\src\HDF5-build\src\cmake_install.cmake, line 113 there is a defect that appears when building in RelWithDebInfo:
file(INSTALL DESTINATION "${CMAKE_INSTALL_PREFIX}/bin" TYPE FILE FILES "C:/work/bin/MITK/ep/src/HDF5-build/bin//hdf5.pdb")
The line should be:
file(INSTALL DESTINATION "${CMAKE_INSTALL_PREFIX}/bin" TYPE FILE FILES "C:/work/bin/MITK/ep/src/HDF5-build/bin/RelWithDebInfo/hdf5.pdb")
Thanks!