what is Error in Matlab.sys​tem.System​Prop.creat​eVersionNu​mber??

hey guys,

in the middle of regular work, my MATLAB had this sudden death error, shows like this -

Error in Matlab.system.SystemProp.createVersionNumber

Invalid default value for property 'MajorVersionNumber' in class 'Matlab.system.SystemProp': Undefined function 'minus' for input arguments of type 'cell'.

and this occurs only when trying to run specialized toolbox functions which i use all the time....

I am running MATLAB 2019B V9.7, on macOS Catalina 10.15.3.

anyone else had this problem?

thanks ahead!

[Walter Roberson]

One of the third party toolbox is defining its own version of a function that MATLAB relies on.

[Tom Dadon]

Thanks Walter,

i found the causing file and it worked out.

[Tiago Moraes]

How?

[ahcen aliouat]

hello, could you tell us how you resolved this problem? thank you

[Philipp Engels]

I also experiencing the same behaviour using matlab 2020b; a previous running simulink code has now two times this error:

The delimiter should be a non-empty char string.

• Invalid default value for property 'MajorVersionNumber' in class 'matlab.system.SystemProp': The delimiter should be a non-empty char string.

it seems to happen in strsplit function whoch is called internally from the matlab.system class

and the also inside the digital signal processing toolbox

• Error evaluating parameter 'System' in 'dspsrcs4/Binary File Reader'

[Philipp Engels]

If declare no matlab.system classes the only error is inside proprietary dsp toolbox functions:

writer = dsp.BinaryFileWriter(filename, 'HeaderStructure', header);

Invalid default value for property 'MajorVersionNumber' in class 'matlab.system.SystemProp':

The delimiter should be a non-empty char string.

Error in matlab.system.SystemProp.createVersionNumber

[Philipp Engels]

same error also with matlab version 2020a in several simulink functions...

[Philipp Engels]

so also thanks walter

[Walter Roberson]

Ah, thanks for the update!

[Rakshit Kothari]

Thank you Philipp, this was the right solution!

Answer 1

[Philipp Engels]

found the rootcause: the function strsplit.m was doubled in a subfolder of my routines. I deleted the function.