Issues installing on Ubuntu

[guytenn]

I've been having trouble installing flightmare. I've attempted installing it on fresh installations of Ubuntu 20 on 4 different machines. I always get the same error:

(venv) guy@guy-desktop:~/Projects/flightmare/flightlib$ pip install . Processing /home/guy/Projects/flightmare/flightlib Building wheels for collected packages: flightgym Building wheel for flightgym (setup.py) ... error ERROR: Command errored out with exit status 1: command: /home/guy/Projects/venv/bin/python3 -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-req-build-wkhfi20y/setup.py'"'"'; file='"'"'/tmp/pip-req-build-wkhfi20y/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(file);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, file, '"'"'exec'"'"'))' bdist_wheel -d /tmp/pip-wheel-cwah6dfg cwd: /tmp/pip-req-build-wkhfi20y/ Complete output (104 lines): running bdist_wheel running build running build_ext -- The C compiler identification is GNU 9.3.0 -- The CXX compiler identification is GNU 9.3.0 -- Check for working C compiler: /usr/bin/cc -- Check for working C compiler: /usr/bin/cc -- 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: /usr/bin/c++ -- Check for working CXX compiler: /usr/bin/c++ -- works -- Detecting CXX compiler ABI info -- Detecting CXX compiler ABI info - done -- Detecting CXX compile features -- Detecting CXX compile features - done -- ====================== !Flightmare! ====================== -- ======> Setup Dependencies -- No sufficient Eigen version (3.3.4) found. -- Restoring to download Eigen sources. -- Getting Eigen... Cloning into 'eigen3'... Note: switching to '3.3.4'.

You are in 'detached HEAD' state. You can look around, make experimental changes and commit them, and you can discard any commits you make in this state without impacting any branches by switching back to a branch.

If you want to create a new branch to retain commits you create, you may do so (now or later) by using -c with the switch command. Example:

git switch -c <new-branch-name>

Or undo this operation with:

git switch -

Turn off this advice by setting config variable advice.detachedHead to false

HEAD is now at 3dc3a0ea2 bump to 3.3.4 -- Eigen downloaded! -- Eigen3 include dir: -- Getting Pybind11... Cloning into 'pybind11-src'... Already on 'master' -- Pybind11 downloaded! -- pybind11 v2.6.2 dev1 -- Found PythonInterp: /home/guy/Projects/venv/bin/python3 (found version "3.8.5") -- Found PythonLibs: /usr/lib/x86_64-linux-gnu/libpython3.8.so -- Performing Test HAS_FLTO -- Performing Test HAS_FLTO - Success -- Getting yaml-cpp... -- Yaml downloaded! CMake Error at CMakeLists.txt:50 (find_package): By not providing "FindOpenCV.cmake" in CMAKE_MODULE_PATH this project has asked CMake to find a package configuration file provided by "OpenCV", but CMake did not find one.

Could not find a package configuration file provided by "OpenCV" with any
of the following names:

  OpenCVConfig.cmake
  opencv-config.cmake

Add the installation prefix of "OpenCV" to CMAKE_PREFIX_PATH or set
"OpenCV_DIR" to a directory containing one of the above files.  If "OpenCV"
provides a separate development package or SDK, be sure it has been
installed.

-- Configuring incomplete, errors occurred! See also "/tmp/pip-req-build-wkhfi20y/build/temp.linux-x86_64-3.8/CMakeFiles/CMakeOutput.log". Traceback (most recent call last): File "", line 1, in File "/tmp/pip-req-build-wkhfi20y/setup.py", line 94, in setup( File "/home/guy/Projects/venv/lib/python3.8/site-packages/setuptools/init.py", line 145, in setup return distutils.core.setup(**attrs) File "/usr/lib/python3.8/distutils/core.py", line 148, in setup dist.run_commands() File "/usr/lib/python3.8/distutils/dist.py", line 966, in run_commands self.run_command(cmd) File "/usr/lib/python3.8/distutils/dist.py", line 985, in run_command cmd_obj.run() File "/home/guy/Projects/venv/lib/python3.8/site-packages/wheel/bdist_wheel.py", line 290, in run self.run_command('build') File "/usr/lib/python3.8/distutils/cmd.py", line 313, in run_command self.distribution.run_command(command) File "/usr/lib/python3.8/distutils/dist.py", line 985, in run_command cmd_obj.run() File "/usr/lib/python3.8/distutils/command/build.py", line 135, in run self.run_command(cmd_name) File "/usr/lib/python3.8/distutils/cmd.py", line 313, in run_command self.distribution.run_command(command) File "/usr/lib/python3.8/distutils/dist.py", line 985, in run_command cmd_obj.run() File "/tmp/pip-req-build-wkhfi20y/setup.py", line 59, in run self.build_extension(ext) File "/tmp/pip-req-build-wkhfi20y/setup.py", line 88, in build_extension subprocess.check_call(['cmake', ext.sourcedir] + File "/usr/lib/python3.8/subprocess.py", line 364, in check_call raise CalledProcessError(retcode, cmd) subprocess.CalledProcessError: Command '['cmake', '/tmp/pip-req-build-wkhfi20y', '-DCMAKE_LIBRARY_OUTPUT_DIRECTORY=/tmp/pip-req-build-wkhfi20y/build/lib.linux-x86_64-3.8/', '-DPYTHON_EXECUTABLE=/home/guy/Projects/venv/bin/python3', '-DCMAKE_BUILD_TYPE=Release']' returned non-zero exit status 1.

ERROR: Failed building wheel for flightgym Running setup.py clean for flightgym Failed to build flightgym Installing collected packages: flightgym Running setup.py install for flightgym ... error ERROR: Command errored out with exit status 1: command: /home/guy/Projects/venv/bin/python3 -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-req-build-wkhfi20y/setup.py'"'"'; file='"'"'/tmp/pip-req-build-wkhfi20y/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(file);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, file, '"'"'exec'"'"'))' install --record /tmp/pip-record-fb6tumbe/install-record.txt --single-version-externally-managed --compile --install-headers /home/guy/Projects/venv/include/site/python3.8/flightgym cwd: /tmp/pip-req-build-wkhfi20y/ Complete output (85 lines): running install running build running build_ext -- The C compiler identification is GNU 9.3.0 -- The CXX compiler identification is GNU 9.3.0 -- Check for working C compiler: /usr/bin/cc -- Check for working C compiler: /usr/bin/cc -- 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: /usr/bin/c++ -- Check for working CXX compiler: /usr/bin/c++ -- works -- Detecting CXX compiler ABI info -- Detecting CXX compiler ABI info - done -- Detecting CXX compile features -- Detecting CXX compile features - done -- ====================== !Flightmare! ====================== -- ======> Setup Dependencies -- No sufficient Eigen version (3.3.4) found. -- Restoring to download Eigen sources. -- Getting Eigen... -- Eigen downloaded! -- Eigen3 include dir: -- Getting Pybind11... -- Pybind11 downloaded! -- pybind11 v2.6.2 dev1 -- Found PythonInterp: /home/guy/Projects/venv/bin/python3 (found version "3.8.5") -- Found PythonLibs: /usr/lib/x86_64-linux-gnu/libpython3.8.so -- Performing Test HAS_FLTO -- Performing Test HAS_FLTO - Success -- Getting yaml-cpp... -- Yaml downloaded! CMake Error at CMakeLists.txt:50 (find_package): By not providing "FindOpenCV.cmake" in CMAKE_MODULE_PATH this project has asked CMake to find a package configuration file provided by "OpenCV", but CMake did not find one.

  Could not find a package configuration file provided by "OpenCV" with any
  of the following names:

    OpenCVConfig.cmake
    opencv-config.cmake

  Add the installation prefix of "OpenCV" to CMAKE_PREFIX_PATH or set
  "OpenCV_DIR" to a directory containing one of the above files.  If "OpenCV"
  provides a separate development package or SDK, be sure it has been
  installed.


-- Configuring incomplete, errors occurred!
See also "/tmp/pip-req-build-wkhfi20y/build/temp.linux-x86_64-3.8/CMakeFiles/CMakeOutput.log".
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/tmp/pip-req-build-wkhfi20y/setup.py", line 94, in <module>
    setup(
  File "/home/guy/Projects/venv/lib/python3.8/site-packages/setuptools/__init__.py", line 145, in setup
    return distutils.core.setup(**attrs)
  File "/usr/lib/python3.8/distutils/core.py", line 148, in setup
    dist.run_commands()
  File "/usr/lib/python3.8/distutils/dist.py", line 966, in run_commands
    self.run_command(cmd)
  File "/usr/lib/python3.8/distutils/dist.py", line 985, in run_command
    cmd_obj.run()
  File "/home/guy/Projects/venv/lib/python3.8/site-packages/setuptools/command/install.py", line 61, in run
    return orig.install.run(self)
  File "/usr/lib/python3.8/distutils/command/install.py", line 589, in run
    self.run_command('build')
  File "/usr/lib/python3.8/distutils/cmd.py", line 313, in run_command
    self.distribution.run_command(command)
  File "/usr/lib/python3.8/distutils/dist.py", line 985, in run_command
    cmd_obj.run()
  File "/usr/lib/python3.8/distutils/command/build.py", line 135, in run
    self.run_command(cmd_name)
  File "/usr/lib/python3.8/distutils/cmd.py", line 313, in run_command
    self.distribution.run_command(command)
  File "/usr/lib/python3.8/distutils/dist.py", line 985, in run_command
    cmd_obj.run()
  File "/tmp/pip-req-build-wkhfi20y/setup.py", line 59, in run
    self.build_extension(ext)
  File "/tmp/pip-req-build-wkhfi20y/setup.py", line 88, in build_extension
    subprocess.check_call(['cmake', ext.sourcedir] +
  File "/usr/lib/python3.8/subprocess.py", line 364, in check_call
    raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['cmake', '/tmp/pip-req-build-wkhfi20y', '-DCMAKE_LIBRARY_OUTPUT_DIRECTORY=/tmp/pip-req-build-wkhfi20y/build/lib.linux-x86_64-3.8/', '-DPYTHON_EXECUTABLE=/home/guy/Projects/venv/bin/python3', '-DCMAKE_BUILD_TYPE=Release']' returned non-zero exit status 1.
----------------------------------------

ERROR: Command errored out with exit status 1: /home/guy/Projects/venv/bin/python3 -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-req-build-wkhfi20y/setup.py'"'"'; file='"'"'/tmp/pip-req-build-wkhfi20y/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(file);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, file, '"'"'exec'"'"'))' install --record /tmp/pip-record-fb6tumbe/install-record.txt --single-version-externally-managed --compile --install-headers /home/guy/Projects/venv/include/site/python3.8/flightgym Check the logs for full command output.

[peasant98]

Hi, do you have OpenCV installed? I had a similar error. @guytenn