Simulink library 2019a is empty

Hi. I updated my Matlab to 2019a and then the Simulink library became empty. Tired to reflesh but did not work. The error shows:

Warning: An error occurred while parsing "C:\Program Files\MATLAB\R2019a\toolbox\simulink\blocks\slblocks.m". Error

Message: Too many input arguments..

Warning: An error occurred while parsing "C:\Program

Files\MATLAB\R2019a\toolbox\stateflow\stateflow_lib\slblocks.m". Error Message: Too many input arguments..

Warning: An error occurred while parsing "C:\Program Files\MATLAB\R2019a\toolbox\rtw\rtw\slblocks.m". Error

Message: Too many input arguments..

Warning: An error occurred while parsing "C:\Program Files\MATLAB\R2019a\toolbox\control\ctrlmodels\slblocks.m".

Error Message: Too many input arguments..

Warning: An error occurred while parsing "C:\Program Files\MATLAB\R2019a\toolbox\daq\daqblks\slblocks.m". Error

Message: Too many input arguments..

Warning: An error occurred while parsing "C:\Program Files\MATLAB\R2019a\toolbox\dsp\dsp\slblocks.m". Error

Message: Too many input arguments..

Warning: An error occurred while parsing "C:\Program

Files\MATLAB\R2019a\toolbox\hdlcoder\hdllib\sl_lib\slblocks.m". Error Message: Too many input arguments..

Warning: An error occurred while parsing "C:\Program

Files\MATLAB\R2019a\toolbox\instrument\instrumentblks\instrumentblks\slblocks.m". Error Message: Too many input

arguments..

Warning: An error occurred while parsing "C:\Program Files\MATLAB\R2019a\toolbox\simulink\blocks\sb2sl\slblocks.m".

Error Message: Too many input arguments..

Warning: An error occurred while parsing "C:\Program Files\MATLAB\R2019a\toolbox\sl3d\sl3d\slblocks.m". Error

Message: Too many input arguments..

Warning: An error occurred while parsing "C:\Program Files\MATLAB\R2019a\toolbox\slcontrol\slctrlutil\slblocks.m".

Error Message: Too many input arguments..

Warning: An error occurred while parsing "C:\Program Files\MATLAB\R2019a\toolbox\slrt\blocks\slblocks.m". Error

Message: Too many input arguments..

Warning: An error occurred while parsing "C:\Program

Files\MATLAB\R2019a\toolbox\rtw\targets\xpc\target\build\xpcblocks\thirdpartydrivers\slblocks.m". Error Message:

Too many input arguments..

>> Any one can help???

Answer 1

[Hornett]

It looks like there are issues with the `slblocks.m` files in your Simulink library due to the error message "Too many input arguments." This can happen for a variety of reasons, including corruption during the update process or incompatibilities.

Here are some steps you can try to resolve this issue:

Clear MATLAB Cache

Clear the MATLAB cache to ensure that there are no corrupted cached files causing the issue.

rehash toolboxcache

Step 2: Restore Default Path

Restore the default MATLAB path to ensure no custom paths are causing conflicts.

restoredefaultpath
savepath

Step 3: Check for Custom `slblocks.m` Files

Ensure that there are no custom `slblocks.m` files in your MATLAB path that might be causing the issue. Use the `which` command to locate the `slblocks.m` files.

which -all slblocks.m

Step 4: Reinstall Simulink

If the above steps do not work, try reinstalling Simulink:

1. Open MATLAB.

2. Go to the Home tab.

3. Click on Add-Ons and select Manage Add-Ons

4. Uninstall Simulink.

5. Reinstall Simulink.

Step 5: Update MATLAB and Simulink

Ensure that you have the latest updates for MATLAB and Simulink. You can check for updates from the **Home** tab:

1. Go to the Home tab.

2. Click on Help.

3. Select Check for Updates.

I hope this helps!