qdldl 的构建轮失败安装 cvxpy 时

如何解决qdldl 的构建轮失败安装 cvxpy 时

不管我是用pip安装还是从源码安装，不管我用python2还是python3我都不能安装cvxpy。我已经尝试了四个多小时，但仍然失败。 cvxpy 或 qdldl 的 github 页面不会给我任何解决方案。我安装了导致其他错误的软件包，但没有成功。任何提示表示赞赏。

user@ion:~ $ sudo pip install cvxpy

Looking in indexes: https://pypi.org/simple,https://www.piwheels.org/simple
Collecting cvxpy
  Using cached https://files.pythonhosted.org/packages/11/d0/d900870dc2d02ea74961b90c353666c6528a33ea61a10aa59a0d5574ae59/cvxpy-1.0.31.tar.gz
  Installing build dependencies ... done
Collecting osqp>=0.4.1 (from cvxpy)
  Using cached https://files.pythonhosted.org/packages/c0/90/4cf48c200a89e46bcad87e12469ee36fc03d0c3f16b703b747e8c4bf618e/osqp-0.6.2.post0.tar.gz
  Installing build dependencies ... done
    Complete output from command python setup.py egg_info:
      Failed building wheel for qdldl
    ERROR: Failed to build one or more wheels
    disabling LONG
    Remove long integers for numpy compatibility. See:
     - https://github.com/numpy/numpy/issues/5906
     - https://github.com/ContinuumIO/anaconda-issues/issues/3823
    You can reenable long integers by passing: --osqp --long argument.
    
    Traceback (most recent call last):
      File "<string>",line 1,in <module>
      File "/tmp/pip-install-zEueiK/osqp/setup.py",line 276,in <module>
        ext_modules=[_osqp])
      File "/tmp/pip-build-env-vbB_nz/lib/python2.7/site-packages/setuptools/__init__.py",line 161,in setup
        _install_setup_requires(attrs)
      File "/tmp/pip-build-env-vbB_nz/lib/python2.7/site-packages/setuptools/__init__.py",line 156,in _install_setup_requires
        dist.fetch_build_eggs(dist.setup_requires)
      File "/tmp/pip-build-env-vbB_nz/lib/python2.7/site-packages/setuptools/dist.py",line 721,in fetch_build_eggs
        replace_conflicting=True,File "/tmp/pip-build-env-vbB_nz/lib/python2.7/site-packages/pkg_resources/__init__.py",line 782,in resolve
        replace_conflicting=replace_conflicting
      File "/tmp/pip-build-env-vbB_nz/lib/python2.7/site-packages/pkg_resources/__init__.py",line 1065,in best_match
        return self.obtain(req,installer)
      File "/tmp/pip-build-env-vbB_nz/lib/python2.7/site-packages/pkg_resources/__init__.py",line 1077,in obtain
        return installer(requirement)
      File "/tmp/pip-build-env-vbB_nz/lib/python2.7/site-packages/setuptools/dist.py",line 777,in fetch_build_egg
        return fetch_build_egg(self,req)
      File "/tmp/pip-build-env-vbB_nz/lib/python2.7/site-packages/setuptools/installer.py",line 130,in fetch_build_egg
        raise distutilsError(str(e))
    distutils.errors.distutilsError: Command '['/usr/bin/python','-m','pip','--disable-pip-version-check','wheel','--no-deps','-w','/tmp/tmpsvIroT','--quiet','qdldl']' returned non-zero exit status 1
    
    ----------------------------------------
Command "python setup.py egg_info" Failed with error code 1 in /tmp/pip-install-zEueiK/osqp/

或者在这里从 python 3 中的源安装

user@ion:~/osqp-python $ sudo python3 setup.py install 
no prevIoUsly-included directories found matching 'tests/__pycache__/'
no prevIoUsly-included directories found matching 'c/build/'
no prevIoUsly-included directories found matching 'c/qdldl/build'
-- The C compiler identification is GNU 8.3.0
-- The CXX compiler identification is GNU 8.3.0
-- 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
-- Floats are OFF
-- disabling long integers (64bit) on 32bit machine
-- Long integers (64bit) are OFF
-- Configuring done
-- Generating done
-- Build files have been written to: /tmp/easy_install-zqykb8_c/qdldl-0.1.5.post0/c/build
Scanning dependencies of target qdldlobject
[  6%] Building C object qdldl/CMakeFiles/qdldlobject.dir/src/qdldl.c.o
[  6%] Built target qdldlobject
Scanning dependencies of target qdldlamd
[ 13%] Building C object CMakeFiles/qdldlamd.dir/amd/src/amd_1.c.o
[ 20%] Building C object CMakeFiles/qdldlamd.dir/amd/src/amd_2.c.o
[ 26%] Building C object CMakeFiles/qdldlamd.dir/amd/src/amd_aat.c.o
[ 33%] Building C object CMakeFiles/qdldlamd.dir/amd/src/amd_control.c.o
[ 40%] Building C object CMakeFiles/qdldlamd.dir/amd/src/amd_defaults.c.o
[ 46%] Building C object CMakeFiles/qdldlamd.dir/amd/src/amd_info.c.o
[ 53%] Building C object CMakeFiles/qdldlamd.dir/amd/src/amd_order.c.o
[ 60%] Building C object CMakeFiles/qdldlamd.dir/amd/src/amd_post_tree.c.o
[ 66%] Building C object CMakeFiles/qdldlamd.dir/amd/src/amd_postorder.c.o
[ 73%] Building C object CMakeFiles/qdldlamd.dir/amd/src/amd_preprocess.c.o
[ 80%] Building C object CMakeFiles/qdldlamd.dir/amd/src/amd_valid.c.o
[ 86%] Building C object CMakeFiles/qdldlamd.dir/amd/src/suitesparse_config.c.o
[ 93%] Building C object CMakeFiles/qdldlamd.dir/amd/src/perm.c.o
[100%] Linking C static library out/libqdldlamd.a
[100%] Built target qdldlamd
cpp/qdldl.cpp: In constructor ‘qdldl::Solver::Solver(QDLDL_int,QDLDL_int*,QDLDL_float*)’:
cpp/qdldl.cpp:34:41: error: cannot convert ‘QDLDL_int*’ {aka ‘int*’} to ‘const long long int*’
  QDLDL_int amd_status = amd_l_order(nx,Ap,Ai,P,NULL,NULL);
                                         ^~
In file included from cpp/qdldl.hpp:3,from cpp/qdldl.cpp:1:
c/amd/include/amd.h:63:28: note:   initializing argument 2 of ‘long long int amd_l_order(long long int,const long long int*,long long int*,c_float*,c_float*)’
     const suitesparse_long Ap [ ],~~~~~~~~~~~~~~~~~~~~~~~^~~~~~
Traceback (most recent call last):
  File "/usr/lib/python3.7/distutils/unixccompiler.py",line 118,in _compile
    extra_postargs)
  File "/usr/lib/python3.7/distutils/ccompiler.py",line 909,in spawn
    spawn(cmd,dry_run=self.dry_run)
  File "/usr/lib/python3.7/distutils/spawn.py",line 36,in spawn
    _spawn_posix(cmd,search_path,dry_run=dry_run)
  File "/usr/lib/python3.7/distutils/spawn.py",line 159,in _spawn_posix
    % (cmd,exit_status))
distutils.errors.distutilsExecError: command 'arm-linux-gnueabihf-gcc' Failed with exit status 1

During handling of the above exception,another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3.7/distutils/core.py",line 148,in setup
    dist.run_commands()
  File "/usr/lib/python3.7/distutils/dist.py",line 966,in run_commands
    self.run_command(cmd)
  File "/usr/lib/python3.7/distutils/dist.py",line 985,in run_command
    cmd_obj.run()
  File "/usr/lib/python3/dist-packages/setuptools/command/bdist_egg.py",line 172,in run
    cmd = self.call_command('install_lib',warn_dir=0)
  File "/usr/lib/python3/dist-packages/setuptools/command/bdist_egg.py",line 158,in call_command
    self.run_command(cmdname)
  File "/usr/lib/python3.7/distutils/cmd.py",line 313,in run_command
    self.distribution.run_command(command)
  File "/usr/lib/python3.7/distutils/dist.py",in run_command
    cmd_obj.run()
  File "/usr/lib/python3/dist-packages/setuptools/command/install_lib.py",line 24,in run
    self.build()
  File "/usr/lib/python3.7/distutils/command/install_lib.py",line 109,in build
    self.run_command('build_ext')
  File "/usr/lib/python3.7/distutils/cmd.py",in run_command
    cmd_obj.run()
  File "/usr/lib/python3/dist-packages/setuptools/command/build_ext.py",line 78,in run
    _build_ext.run(self)
  File "/usr/lib/python3.7/distutils/command/build_ext.py",line 340,in run
    self.build_extensions()
  File "/tmp/easy_install-zqykb8_c/qdldl-0.1.5.post0/setup.py",line 91,in build_extensions
    # Interface files
  File "/usr/lib/python3.7/distutils/command/build_ext.py",line 449,in build_extensions
    self._build_extensions_serial()
  File "/usr/lib/python3.7/distutils/command/build_ext.py",line 474,in _build_extensions_serial
    self.build_extension(ext)
  File "/usr/lib/python3/dist-packages/setuptools/command/build_ext.py",line 199,in build_extension
    _build_ext.build_extension(self,ext)
  File "/usr/lib/python3.7/distutils/command/build_ext.py",line 534,in build_extension
    depends=ext.depends)
  File "/usr/lib/python3.7/distutils/ccompiler.py",line 574,in compile
    self._compile(obj,src,ext,cc_args,extra_postargs,pp_opts)
  File "/usr/lib/python3.7/distutils/unixccompiler.py",line 120,in _compile
    raise CompileError(msg)
distutils.errors.CompileError: command 'arm-linux-gnueabihf-gcc' Failed with exit status 1

During handling of the above exception,another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/setuptools/sandBox.py",line 154,in save_modules
    yield saved
  File "/usr/lib/python3/dist-packages/setuptools/sandBox.py",line 195,in setup_context
    yield
  File "/usr/lib/python3/dist-packages/setuptools/sandBox.py",line 250,in run_setup
    _execfile(setup_script,ns)
  File "/usr/lib/python3/dist-packages/setuptools/sandBox.py",line 45,in _execfile
    exec(code,globals,locals)
  File "/tmp/easy_install-zqykb8_c/qdldl-0.1.5.post0/setup.py",line 124,in <module>
    # External libraries
  File "/usr/lib/python3/dist-packages/setuptools/__init__.py",line 145,in setup
    return distutils.core.setup(**attrs)
  File "/usr/lib/python3.7/distutils/core.py",line 163,in setup
    raise SystemExit("error: " + str(msg))
SystemExit: error: command 'arm-linux-gnueabihf-gcc' Failed with exit status 1

During handling of the above exception,another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/setuptools/command/easy_install.py",line 1169,in run_setup
    run_setup(setup_script,args)
  File "/usr/lib/python3/dist-packages/setuptools/sandBox.py",line 253,in run_setup
    raise
  File "/usr/lib/python3.7/contextlib.py",in __exit__
    self.gen.throw(type,value,traceback)
  File "/usr/lib/python3/dist-packages/setuptools/sandBox.py",in setup_context
    yield
  File "/usr/lib/python3.7/contextlib.py",line 166,in save_modules
    saved_exc.resume()
  File "/usr/lib/python3/dist-packages/setuptools/sandBox.py",line 141,in resume
    six.reraise(type,exc,self._tb)
  File "/usr/lib/python3/dist-packages/setuptools/_vendor/six.py",line 685,in reraise
    raise value.with_traceback(tb)
  File "/usr/lib/python3/dist-packages/setuptools/sandBox.py",another exception occurred:

Traceback (most recent call last):
  File "setup.py",in <module>
    ext_modules=[_osqp])
  File "/usr/lib/python3/dist-packages/setuptools/__init__.py",line 144,in setup
    _install_setup_requires(attrs)
  File "/usr/lib/python3/dist-packages/setuptools/__init__.py",line 139,in _install_setup_requires
    dist.fetch_build_eggs(dist.setup_requires)
  File "/usr/lib/python3/dist-packages/setuptools/dist.py",line 724,in fetch_build_eggs
    replace_conflicting=True,File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py",in resolve
    replace_conflicting=replace_conflicting
  File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py",in best_match
    return self.obtain(req,installer)
  File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py",in obtain
    return installer(requirement)
  File "/usr/lib/python3/dist-packages/setuptools/dist.py",line 791,in fetch_build_egg
    return cmd.easy_install(req)
  File "/usr/lib/python3/dist-packages/setuptools/command/easy_install.py",line 704,in easy_install
    return self.install_item(spec,dist.location,tmpdir,deps)
  File "/usr/lib/python3/dist-packages/setuptools/command/easy_install.py",line 730,in install_item
    dists = self.install_eggs(spec,download,tmpdir)
  File "/usr/lib/python3/dist-packages/setuptools/command/easy_install.py",line 915,in install_eggs
    return self.build_and_install(setup_script,setup_base)
  File "/usr/lib/python3/dist-packages/setuptools/command/easy_install.py",line 1183,in build_and_install
    self.run_setup(setup_script,setup_base,args)
  File "/usr/lib/python3/dist-packages/setuptools/command/easy_install.py",line 1171,in run_setup
    raise distutilsError("Setup script exited with %s" % (v.args[0],))
distutils.errors.distutilsError: Setup script exited with error: command 'arm-linux-gnueabihf-gcc' Failed with exit status 1

解决方法

可以安装osqp

pip3 install osqp==0.6.1