What does the message Failed to load library 'powerlib_extras' in R2017a Simulink mean?

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Ben Le
Ben Le 2017-3-18
回答： Taiquan Liu 2018-11-23
Hello everyone,
I ran a system in Simulink (R2017a Student version) and received a message: " Failed to load library 'powerlib_extras'. Please see the attached file. I don't know if my Simulink has issue or I am missing something else. Can anyone show me how to solve this issue? Thank you in advance for any your help!

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Walter Roberson
Walter Roberson 2017-3-18
Does anything show up when you use
which powerlib_extras
For me on OS-X it shows
/Applications/MATLAB_R2017a.app/toolbox/physmod/powersys/powersys/powerlib_extras.slx
indicating that it should normally be installed as part of physmod, the formal name of which is Simscape Multibody
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Walter Roberson
Walter Roberson 2017-3-18
Please show the output of
which powerlib_extras
If nothing shows up then Simscape Multibody did not get installed properly and you should reinstall it.
It looks to me as if you might have chosen a custom directory to install in, as I would have expected R2017a as the directory name instead of 2017a
Ben Le
Ben Le 2017-3-19
Thank you, Walter. I can't get the output. The link I sent you was incorrect: R2017a was there. Powerlib_extras is one of many the components in simscape. My simscape folder does not contain powersys toolbox and I must install it separate (free trial). To me, the powersys toolbox is apparently not included in R2017a (Student version). I must install it separate.
Thanks again.

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Taiquan Liu
Taiquan Liu 2018-11-23
Hi, it seems that for me (2018b) installing Simscape Electrical will solve this problem.

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