Error Installing ROS on Debian Stretch

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I am trying to install ROS on Debian Stretch running on a Beaglebone Black using the instructions here http://wiki.ros.org/Debian/Installati... the script file install_ros.sh gives the following error while executing

./src/catkin/bin/catkin_make_isolated --install -DCMAKE_BUILD_TYPE=Release

==> cmake /home/debian/ros_catkin_ws/src/catkin -DCATKIN_DEVEL_PREFIX=/home/debian/ros_catkin_ws/devel_isolated/catkin -DCMAKE_INSTALL_PREFIX=/home/debian/ros_catkin_ws/install_isolated -DCMAKE_BUILD_TYPE=Release -G Unix Makefiles in '/home/debian/ros_catkin_ws/build_isolated/catkin'
Unhandled exception of type 'OSError':
Traceback (most recent call last):
  File "./src/catkin/bin/../python/catkin/builder.py", line 965, in build_workspace_isolated
    number=index + 1, of=len(ordered_packages)
  File "./src/catkin/bin/../python/catkin/builder.py", line 665, in build_package
    destdir=destdir, use_ninja=use_ninja
  File "./src/catkin/bin/../python/catkin/builder.py", line 397, in build_catkin_package
    run_command_colorized(cmake_cmd, build_dir, quiet, add_env=add_env)
  File "./src/catkin/bin/../python/catkin/builder.py", line 187, in run_command_colorized
    run_command(cmd, cwd, quiet=quiet, colorize=True, add_env=add_env)
  File "./src/catkin/bin/../python/catkin/builder.py", line 205, in run_command
    raise OSError("Failed command '%s': %s" % (cmd, e))
OSError: Failed command '['cmake', '/home/debian/ros_catkin_ws/src/catkin', '-DCATKIN_DEVEL_PREFIX=/home/debian/ros_catkin_ws/devel_isolated/catkin', '-DCMAKE_INSTALL_PREFIX=/home/debian/ros_catkin_ws/install_isolated', '-DCMAKE_BUILD_TYPE=Release', '-G', 'Unix Makefiles']': [Errno 2] No such file or directory
<== Failed to process package 'catkin': 
  Failed command '['cmake', '/home/debian/ros_catkin_ws/src/catkin', '-DCATKIN_DEVEL_PREFIX=/home/debian/ros_catkin_ws/devel_isolated/catkin', '-DCMAKE_INSTALL_PREFIX=/home/debian/ros_catkin_ws/install_isolated', '-DCMAKE_BUILD_TYPE=Release', '-G', 'Unix Makefiles']': [Errno 2] No such file or directory
Command failed, exiting.

Any help would be appreciated

Thanks Simon