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[Python] ApplicationError: No executable found for solver 'ipopt' in Pyomo

Discussão em 'Python' iniciado por Stack, Setembro 15, 2025.

  1. Stack

    Stack Membro Participativo

    I am learning Pyomo and trying to use ipopt to solve an example question. but initially, I have installed package, then it always shows that there is not a ipopt found. After that, I reinstalled many time, now it shows that

    '''WARNING: Could not locate the 'ipopt' executable, which is required for solver
    ipopt
    ---------------------------------------------------------------------------
    ApplicationError Traceback (most recent call last)
    <ipython-input-2-2e55f87657f9> in <module>
    1 model.N=50
    2 instance = model.create_instance()
    ----> 3 results = opt.solve(instance) # solves and updates instance

    D:\Anacondo\lib\site-packages\pyomo\opt\base\solvers.py in solve(self, *args, **kwds)
    514 """ Solve the problem """
    515
    --> 516 self.available(exception_flag=True)
    517 #
    518 # If the inputs are models, then validate that they have been

    D:\Anacondo\lib\site-packages\pyomo\opt\solver\shellcmd.py in available(self, exception_flag)
    116 if exception_flag:
    117 msg = "No executable found for solver '%s'"
    --> 118 raise ApplicationError(msg % self.name)
    119 return False
    120 return True

    ApplicationError: No executable found for solver 'ipopt'
    '''**bold**


    italic


    quote
    ​

    I have no idea how to fix it and I installed anaconda in desk D instead of C. Could anyone please help me, I need it for an assignment and exam in a month. Thanks.

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