Problem using blocksqp with CasADi 3.1.1 from Python on Windows

[adbuerger]

When I try to use blocksqp for solving an NLP in CasADi 3.1.1 from Python 2.7 (32bit) on Windows 7 (64bit), I get the following error:

Traceback (most recent call last):
  File "myfile.py", line 245, in <module>
    nlpsolver = ca.nlpsol("nlpsolver", "blocksqp", nlp)
  File "D:\casadi-py27-np1.9.1-v3.1.1\casadi\casadi.py", line 15088, in nlpsol
    return _casadi.nlpsol(*args)
RuntimeError: The assertion "handle!=0" on line 274 of file "/home/travis/build/
casadi/binaries/casadi/casadi/core/function/plugin_interface.hpp" failed.
PluginInterface::load_plugin: Cannot load shared library 'libcasadi_linsol_ma27.dll':
   (
    Searched directories: 1. casadipath from GlobalOptions
                          2. CASADIPATH env var
                          3. PATH env var (Windows)
                          4. LD_LIBRARY_PATH env var (Linux)
                          5. DYLD_LIBRARY_PATH env var (osx)
    A library may be 'not found' even if the file exists:
          * library is not compatible (different compiler/bitness)
          * the dependencies are not found
   )
  Tried 'D:\casadi-py27-np1.9.1-v3.1.1\casadi' :
    Error code (WIN32): 126
  Tried '' :
    Error code (WIN32): 126
  Tried '.' :
    Error code (WIN32): 126

The file is definitely in place. When I use {"linsol": "csparse}", csparse is found (though it's not working due to 'neig' not defined for N6casadi16CsparseInterfaceE).

On Ubuntu 16.04, the problem does not occur

[jgillis]

You must have libhsl.dll on your PATH for this Op 13-jan.-2017 18:19 schreef "Adrian Bürger" <notifications@github.com>:

…

When I try to use blocksqp for solving an NLP in CasADi 3.1.1 from Python 2.7 (32bit) on Windows 7 (64bit), I get the following error: Traceback (most recent call last): File "myfile.py", line 245, in <module> nlpsolver = ca.nlpsol("nlpsolver", "blocksqp", nlp) File "D:\casadi-py27-np1.9.1-v3.1.1\casadi\casadi.py", line 15088, in nlpsol return _casadi.nlpsol(*args) RuntimeError: The assertion "handle!=0" on line 274 of file "/home/travis/build/ casadi/binaries/casadi/casadi/core/function/plugin_interface.hpp" failed. PluginInterface::load_plugin: Cannot load shared library 'libcasadi_linsol_ma27.dll': ( Searched directories: 1. casadipath from GlobalOptions 2. CASADIPATH env var 3. PATH env var (Windows) 4. LD_LIBRARY_PATH env var (Linux) 5. DYLD_LIBRARY_PATH env var (osx) A library may be 'not found' even if the file exists: * library is not compatible (different compiler/bitness) * the dependencies are not found ) Tried 'D:\casadi-py27-np1.9.1-v3.1.1\casadi' : Error code (WIN32): 126 Tried '' : Error code (WIN32): 126 Tried '.' : Error code (WIN32): 126 The file is definitely in place. When I use {"linsol": "csparse}", csparse is found (though it's not working due to 'neig' not defined for N6casadi16CsparseInterfaceE). On Ubuntu 16.04, the problem does not occur — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#1932>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAUFSPcDmsmv91X1m1APm1JgYvFuxM2Uks5rR7IegaJpZM4LjGVE> .

[adbuerger]

Ah ok sorry, I got confused, I saw ma27 being used in tests and examples, so I thought that it would be shipped with CasADi. Of course I had libhsl.so on Ubuntu, but not on Windows, so this was always working for me. Thanks for your quick answer!

[jgillis]

I'd be trivial to ship, but this is not allowed..