用Pyfmi模拟时Cvodeerror

我尝试在Anaconda（Python 3.6.8）上设置PYFMI

安装了PYFMI网站上列出的所有必需软件包。FMU加载没有问题，但是当我尝试模拟FMU时，我会遇到一个错误：

Could not find cannot import name 'radau5'
Could not find cannot import name 'dopri5'
Could not find cannot import name 'rodas'
Could not find cannot import name 'odassl'
Could not find ODEPACK functions.
Could not find RADAR5
Could not find GLIMDA.
Traceback (most recent call last):
File "assimulosolvers../lib/sundials_callbacks_ida_cvode.pxi", line 240, in   assimulo.solvers.sundials.cv_jac
File "C:Usersd60378AppDataLocalContinuumanaconda3libsite-packagespyfmisimulationassimulo_interface.py", line 733, in j
A = self._model._get_A(add_diag=True, output_matrix=self._A)
File "srcpyfmifmi.pyx", line 6041, in pyfmi.fmi.FMUModelBase2._get_A
File "srcpyfmifmi.pyx", line 7592, in pyfmi.fmi.FMUModelME2._get_directional_proxy
File "srcpyfmifmi.pyx", line 5989, in pyfmi.fmi.FMUModelBase2._get_directional_proxy
TypeError: Expected tuple, got dict_keys
Traceback (most recent call last):
 File "<ipython-input-1-6c340902ef15>", line 28, in <module>
 res = model.simulate(options=opts,start_time=tstart, final_time=tstart+172200)
  File "srcpyfmifmi.pyx", line 7522, in pyfmi.fmi.FMUModelME2.simulate
 File "srcpyfmifmi.pyx", line 304, in pyfmi.fmi.ModelBase._exec_simulate_algorithm
  File "srcpyfmifmi.pyx", line 300, in pyfmi.fmi.ModelBase._exec_simulate_algorithm
  File "C:Usersd60378AppDataLocalContinuumanaconda3libsite-packagespyfmifmi_algorithm_drivers.py", line 520, in solve
self.simulator.simulate(self.final_time, self.ncp)
  File "assimuloode.pyx", line 168, in assimulo.ode.ODE.simulate
  File "assimuloode.pyx", line 288, in assimulo.ode.ODE.simulate
  File "assimuloexplicit_ode.pyx", line 101, in assimulo.explicit_ode.Explicit_ODE._simulate
  File "assimuloexplicit_ode.pyx", line 187, in assimulo.explicit_ode.Explicit_ODE._simulate
  File "assimulosolverssundials.pyx", line 1894, in assimulo.solvers.sundials.CVode.integrate
  File "assimulosolverssundials.pyx", line 1926, in assimulo.solvers.sundials.CVode.integrate
 CVodeError: {-1: 'The solver took max internal steps but could not reach tout.', -2: 'The solver could not satisfy the accuracy demanded by the user for some internal step.', -3: 'Error test failures occurred too many times during one internal time step or minimum step size was reached.', -4: 'Convergence test failures occurred too many times during one internal time step or minimum step size was reached.', -5: 'The linear solvers initialization function failed.', -6: 'The linear solvers setup function failed in an unrecoverable manner.', -7: 'The linear solvers solve function failed in an unrecoverable manner.', -8: 'The user-provided rhs function failed in an unrecoverable manner.', -9: 'The right-hand side function failed at the first call.', -10: 'The right-hand side function had repeated recoverable errors.', -11: 'The right-hand side function had a recoverable error, but no recovery is possible.', -12: 'The rootfinding function failed in an unrecoverable manner.', -20: 'A memory allocation failed.', -21: 'The cvode_mem argument was NULL.', -22: 'One of the function inputs is illegal.', -23: 'The CVode memory block was not allocated by a call to CVodeMalloc.', -24: 'The derivative order k is larger than the order used.', -25: 'The time t is outside the last step taken.', -26: 'The output derivative vector is NULL.', -27: 'The output and initial times are too close to each other.', -41: 'The sensitivity right-hand side function failed unrecoverable.'}

会喜欢在哪里寻找可能的问题的任何提示。

kelamahim，您如何安装PYFMI软件包？我用过 conda install -c chria pyfmi而且有效。仅有的 Could not find RADAR5 Could not find GLIMDA在执行中显示，但我的模型有效。希望这会有所帮助。

解决方案正在降级到anaconda 3 python 3.6.2，并使用conda安装PYFMI版本2.4.0

我一直在使用anaconda2（conda 4.6.8/python 2.7.15）。这是安装过程：

fmil是使用cmake
PYFMI是通过conda install -c chria pyfmi
Assimulo是通过conda install -c conda-forge assimulo
WXPYTHON 2.8.12.1（经典）是通过Windows安装程序安装的SourceForge上的
可以从pip

我还看到了在Python中加载PYFMI后的以下警告消息，但我的模拟似乎并没有受到影响：

Could not find cannot import name radau5
Could not find cannot import name dopri5
Could not find cannot import name rodas
Could not find cannot import name odassl
Could not find ODEPACK functions.
Could not find RADAR5
Could not find GLIMDA.

hth

pyfmi也可以从conda-forge频道获得：
https://anaconda.org/conda-forge/pyfmi
我永久补充说，因为它具有可再现的构建和大量的软件包，因此通常可以解决依赖关系。以下对我有用，在python 3.6中的Anaconda3中：

conda config --append channels conda-forge
conda install pyfmi
conda list

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