Errors while running adaptive cruise control model from website
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I an trying to run Adaptive Cruise control model from https://www.mathworks.com/help/mpc/ug/adaptive-cruise-control-using-model-predictive-controller.html
I have used the code provided by them but i'm getting the following error.
Error evaluating 'InitFcn' callback of MPC block (mask) 'mpcACCsystem/Adaptive Cruise Control System/MPC'. Callback string is 'impcblock_InitFcn'
Caused by:
- Can not resolve: mpcobj.
采纳的回答
Fangjun Jiang
2020-4-24
It requires the MPC toolbox. Do you have it? run
ver mpc
license inuse
9 个评论
Dhanush Sureshbabu
2020-4-24
Fangjun Jiang
2020-4-24
The weblink is for R2020a. But I followed it in R2019a. No errors.
Dhanush Sureshbabu
2020-4-24
Fangjun Jiang
2020-4-24
Run "license inuse" after that error to see if you do have the MPC license active.
Re-start MATLAB, try again starting from the addpath() command in the weblink.
Dhanush Sureshbabu
2020-4-24
Fangjun Jiang
2020-4-24
so what is the exact output of "license inuse" after that error?
Dhanush Sureshbabu
2020-4-24
Fangjun Jiang
2020-4-24
编辑：Fangjun Jiang
2020-4-24
I think that is the cause of the problem/error. You have the MPC toolbox installed but you couldn't check out a license for MPC. Your license is probably served on a license server. For whatever reason, you couldn't check it out. The code in the callback is trying to create a MPC object. If no error, the "license insue" should return those plus "mpc_toolbox".
Figure out the license issue, license('checkout','mpc_toolbox') and license('test','mpc_toolbox') might be useful.
Dhanush Sureshbabu
2020-4-24
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