python - 应用程序错误 : No executable found for solver 'ipopt' in Pyomo

Question

我正在学习 Pyomo 并尝试使用 ipopt 来解决示例问题。但最初，我已经安装了包，然后它总是显示没有找到 ipopt。之后我重装了很多次，现在显示出来了

'''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**

斜体

quote

我不知道如何修复它，我将 anaconda 安装在 D table 而不是 C table 。谁能帮助我，我需要它来完成一个月后的作业和考试。谢谢。

Answer 1

安装 3.13.1 后我遇到了同样的问题。我所做的只是下载3.11.1，然后将ipopt.exe保存在C:\ProgramData\Anaconda3\Library\bin

然后就可以了。