Issue in prob.solve() --cell 30 #2

Activity

1. gorgigithub commented on Apr 1, 2020

   

   gorgigithub

   on Apr 1, 2020

   More actions

   I have probably the same error as nainadhingra2012 when trying to run the code. It gives me this:

   ---

   PulpSolverError Traceback (most recent call last)
   in ()
   1 # The problem is solved using PuLP's choice of Solver
   ----> 2 prob.solve()

   ~/anaconda3/lib/python3.6/site-packages/pulp/pulp.py in solve(self, solver, **kwargs)
   1711 """
   1712
   -> 1713 if not(solver): solver = self.solver
   1714 if not(solver): solver = LpSolverDefault
   1715 wasNone, dummyVar = self.fixObjective()

   ~/anaconda3/lib/python3.6/site-packages/pulp/solvers.py in actualSolve(self, lp, **kwargs)
   1410 def available(self):
   1411 """True if the solver is available"""
   -> 1412 return self.executable(self.path)
   1413
   1414 def solve_CBC(self, lp, use_mps=True):

   ~/anaconda3/lib/python3.6/site-packages/pulp/solvers.py in solve_CBC(self, lp, use_mps)
   1484 self.readsol_MPS(tmpSol, lp, lp.variables(), variablesNames, constraintsNames)
   1485 lp.assignVarsVals(values)
   -> 1486 lp.assignVarsDj(reducedCosts)
   1487 lp.assignConsPi(shadowPrices)
   1488 lp.assignConsSlack(slacks, activity=True)

   PulpSolverError: Pulp: Error while executing /home/gorgi/anaconda3/lib/python3.6/site-packages/pulp/solverdir/cbc/linux/64/cbc