Pulp.pulpTestAll（）测试失败，需要解压的值太多

我的操作系统是窗口7，纸浆版本是1.6.1，gurobi版本是7.0.1。 gurobipy可以成功导入。 pulp.solvers.GUROBI确实通过了测试，所以我可以使用gurobi。但是，pulp.solvers.CPLEX_CMD失败。这里是错误信息：Pulp.pulpTestAll（）测试失败，需要解压的值太多

pulp.pulpTestAll() 
    Testing zero subtraction 
    Testing inconsistant lp solution 
    Testing continuous LP solution 
    Testing maximize continuous LP solution 
    Testing unbounded continuous LP solution 
    Testing Long Names 
    Testing repeated Names 
    Testing zero constraint 
    Testing zero objective 
    Testing LpVariable (not LpAffineExpression) objective 
    Testing Long lines in LP 
    Testing LpAffineExpression divide 
    Testing MIP solution 
    Testing MIP solution with floats in objective 
    Testing MIP relaxation 
    Testing feasibility problem (no objective) 
    Testing an infeasible problem 
    Testing an integer infeasible problem 
    Testing column based modelling 
    Testing dual variables and slacks reporting 
    Testing fractional constraints 
    Testing elastic constraints (no change) 
    Testing elastic constraints (freebound) 
    Testing elastic constraints (penalty unchanged) 
    Testing elastic constraints (penalty unbounded) 
* Solver pulp.solvers.PULP_CBC_CMD passed. 
Solver pulp.solvers.CPLEX_DLL unavailable 
    Testing zero subtraction 
    Testing inconsistant lp solution 
    Testing continuous LP solution 
    Testing maximize continuous LP solution 
    Testing unbounded continuous LP solution 
    Testing Long Names 
    Testing repeated Names 
    Testing zero constraint 
'_dummy' 
('* Solver', <class pulp.solvers.CPLEX_CMD at 0x000000000B224CA8>, 'failed.') 
Solver pulp.solvers.CPLEX_PY unavailable 
Solver pulp.solvers.COIN_CMD unavailable 
Solver pulp.solvers.COINMP_DLL unavailable 
Solver pulp.solvers.GLPK_CMD unavailable 
Solver pulp.solvers.XPRESS unavailable 
    Testing zero subtraction 
    Testing inconsistant lp solution 
    Testing continuous LP solution 
    Testing maximize continuous LP solution 
    Testing unbounded continuous LP solution 
    Testing Long Names 
    Testing repeated Names 
    Testing zero constraint 
    Testing zero objective 
    Testing LpVariable (not LpAffineExpression) objective 
    Testing LpAffineExpression divide 
    Testing MIP solution 
    Testing MIP solution with floats in objective 
    Testing MIP relaxation 
    Testing feasibility problem (no objective) 
    Testing an infeasible problem 
    Testing an integer infeasible problem 
    Testing column based modelling 
    Testing Sequential Solves 
    Testing fractional constraints 
    Testing elastic constraints (no change) 
    Testing elastic constraints (freebound) 
    Testing elastic constraints (penalty unchanged) 
    Testing elastic constraints (penalty unbounded) 
* Solver pulp.solvers.GUROBI passed. 
    Testing zero subtraction 
    Testing inconsistant lp solution 
    Testing continuous LP solution 
too many values to unpack 
('* Solver', <class pulp.solvers.GUROBI_CMD at 0x000000000B224FA8>, 'failed.') 
Solver pulp.solvers.PYGLPK unavailable 
Solver pulp.solvers.YAPOSIB unavailable 
Traceback (most recent call last): 

    File "<ipython-input-21-94f8f423594d>", line 1, in <module> 
    pulp.pulpTestAll() 

    File "C:\Users\Guodong\Software\Anaconda2\lib\site-packages\pulp\pulp.py",  line 2283, in pulpTestAll 
    raise PulpError("Tests Failed") 

PulpError: Tests Failed

来源

2016-11-28 Lin Sen

你知道了吗？我收到了同样的错误。 – SashaZd

@SashaZd，不，我只是忽略了错误 –

我卸载并重新安装了gurobi。这次它工作:) – SashaZd

我得到了同样的错误。这与Gurobi_CMD有关。古罗比通过了所有的测试，但在Gurobi_CMD上失败了。

我解决了它通过卸载并重新安装Gurobi，并更改PuLP的.cfg文件，以正确指向Gurobi安装。

来源

2017-01-11 02:12:10 SashaZd

Pulp.pulpTestAll（）测试失败，需要解压的值太多

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