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

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!

Answer 1

[Walter Roberson]

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

[Ben Le]

Hi Walter,

Thank you for your answer. Nothing showed up when I loaded the system in Simulink. I really can't locate the link you sent:

/Applications/MATLAB_R2017a.app/toolbox/physmod/powersys/powersys/powerlib_extras.slx

However, I have the simscape component at the location:

This PC > OS(C:) > Program Files > MATLaB > 2017a > appdata > components > physmod > simscape

The simscape file contains 1 kB

Do I miss something in my matlab simulink (R2017a student version)? Thank you again for your time and help!

[Walter Roberson]

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]

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.

Answer 2

[Taiquan Liu]

Hi, it seems that for me (2018b) installing Simscape Electrical will solve this problem.