Ros1 melodic on Windows catkin_make fails on empty workspace

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After installing ROS1 on Windows, I created a workspace with src directory in it. Within that workspace directory, a catkin_make fails as follows:

d:\Projects\ros1_ws>catkin_make
Base path: d:\Projects\ros1_ws
Source space: d:\Projects\ros1_ws\src
Build space: d:\Projects\ros1_ws\build
Devel space: d:\Projects\ros1_ws\devel
Install space: d:\Projects\ros1_ws\install
Copying file from "C:\opt\ros\melodic\x64\share\catkin\cmake\toplevel.cmake" to "d:\Projects\ros1_ws\src\CMakeLists.txt"####
#### Running command: "cmake d:\Projects\ros1_ws\src -DCMAKE_BUILD_TYPE=RelWithDebInfo -DCATKIN_DEVEL_PREFIX=d:\Projects\ros1_ws\devel -DCMAKE_INSTALL_PREFIX=d:\Projects\ros1_ws\install -G NMake Makefiles" in "d:\Projects\ros1_ws\build"
####
CMake Warning (dev) in CMakeLists.txt:
  No project() command is present.  The top-level CMakeLists.txt file must
  contain a literal, direct call to the project() command.  Add a line of
  code such as

    project(ProjectName)

  near the top of the file, but after cmake_minimum_required().

  CMake is pretending there is a "project(Project)" command on the first
  line.
This warning is for project developers.  Use -Wno-dev to suppress it.

-- The C compiler identification is GNU 6.3.0
-- The CXX compiler identification is GNU 6.3.0
-- Check for working C compiler: C:/MinGW/bin/gcc.exe
-- Check for working C compiler: C:/MinGW/bin/gcc.exe - works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: C:/MinGW/bin/g++.exe
-- Check for working CXX compiler: C:/MinGW/bin/g++.exe - works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Using CATKIN_DEVEL_PREFIX: D:/Projects/ros1_ws/devel
-- Using CMAKE_PREFIX_PATH: C:/opt/ros/melodic/x64;C:/opt/rosdeps/x64;C:/opt/vcpkg/installed/x64-windows
-- This workspace overlays: C:/opt/ros/melodic/x64
-- Found PythonInterp: C:/opt/python27amd64/python.exe (found suitable version "2.7.15", minimum required is "2")
-- Using PYTHON_EXECUTABLE: C:/opt/python27amd64/python.exe
-- Using default Python package layout
CMake Warning (dev) at C:/opt/python27amd64/Lib/site-packages/cmake/data/share/cmake-3.17/Modules/FindPackageHandleStandardArgs.cmake:272 (message):
  The package name passed to `find_package_handle_standard_args` (PY_em) does
  not match the name of the calling package (catkin).  This can lead to
  problems in calling code that expects `find_package` result variables
  (e.g., `_FOUND`) to follow a certain pattern.
Call Stack (most recent call first):
  C:/opt/ros/melodic/x64/share/catkin/cmake/empy.cmake:20 (find_package_handle_standard_args)
  C:/opt/ros/melodic/x64/share/catkin/cmake/empy.cmake:27 (find_python_module)
  C:/opt/ros/melodic/x64/share/catkin/cmake/all.cmake:164 (include)
  C:/opt/ros/melodic/x64/share/catkin/cmake/catkinConfig.cmake:20 (include)
  CMakeLists.txt:56 (find_package)
This warning is for project developers.  Use -Wno-dev to suppress it.

-- Found PY_em: C:\opt\python27amd64\lib\site-packages\em.pyc
-- Using empy: C:/opt/python27amd64/lib/site-packages/em.pyc
-- Using CATKIN_ENABLE_TESTING: ON
-- Call enable_testing()
-- Using CATKIN_TEST_RESULTS_DIR: D:/Projects/ros1_ws/build/test_results
-- Found gtest: gtests will be built
-- Using Python nosetests: C:/opt/python27amd64/Scripts/nosetests-2.7 ...