ROS Toolbox issue after R2020b Update 5: Unable to resolve the name ros.intern​al.utiliti​es.getMess​ageTypesWi​thCppKeywo​rd.

Hi,

scripts running fine in R2020b Update 2 do not more run after R2020b Update 5.

E.g.

>> rosinit
The value of the ROS_MASTER_URI environment variable, http://localhost:11311, will be used to connect to the ROS master.
The value of the ROS_IP environment variable, 192.168.213.1, will be used to set the advertised address for the ROS node.
Initializing global node /matlab_global_node_08205 with NodeURI http://192.168.213.1:44967/
>> rostopic list
/rosout    
/rosout_agg
/tf     
>> laser = rossubscriber('/rosout');
Unable to resolve the name ros.internal.utilities.getMessageTypesWithCppKeyword.

Does anybody know the root cause or help?

Best Regards

[Jagadeesh Konakalla]

Hi Andreas,

I could run the above commands without issue in Update 5 of R2020b MATLAB.

Can you run the following commands in the MATLAB command window before creating subscriber ?

clear classes; rehash path; rehash toolbox; rehash pathreset; rehash toolboxreset; rehash toolboxcache;sl_refresh_customizations

Thanks,

Jagadeesh K

[Andreas Schwager]

Thanks Jagadeesh, I'll do. However, the issue happened immeadiately after Matlab and roscore restart.

Best Regards

Answer 1

[Jagadeesh Konakalla]

The issue looks like resolved with the following commands,

clear classes; rehash path; rehash toolbox; rehash pathreset; rehash toolboxreset; rehash toolboxcache;sl_refresh_customizations

Thanks

Jagadeesh K.