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. Continue reading...