Unsupporte​dOperation​Exception: The first invocation of this method cannot be on the MATLAB thread.

"C:\Program Files\MATLAB\R2017b\bin\matlab" -nodesktop -nosplash -wait -log -minimize -r "matlab.addons.toolbox.installedToolboxes();"

When I execute the above command I get this exception:

    Error using matlab.addons.toolbox.installedToolboxes
Java exception occurred:
java.lang.UnsupportedOperationException: The first invocation of this method cannot be on the MATLAB thread.
        at com.mathworks.addons_common.util.FolderNameUtils.getFirstFolderInUserPath(FolderNameUtils.java:57)
        at com.mathworks.addons_common.util.FolderNameUtils.getUsersHomeDirectory(FolderNameUtils.java:35)
        at com.mathworks.addons_common.util.settings.InstallationFolderUtils.getDefaultInstallationFolder(InstallationFolderUtils.java:77)
        at com.mathworks.addons_common.util.settings.InstallationFolderUtils.getInstallationFolderForMatlabDesktop(InstallationFolderUtils.java:42)
        at com.mathworks.addons_common.util.settings.InstallationFolderUtils.getInstallationFolder(InstallationFolderUtils.java:36)
        at com.mathworks.toolboxmanagement.CustomToolboxManager.getInstalled(CustomToolboxManager.java:81)

This seems to only happen with 2017b, I have tested the same with 2016a 2016b and 2017a without problems

[Roman Liubich]

Same problem on 2017b

Answer 1

[John Harris]

Not sure if this will fix it, but check out this bug and install the latest matlab Update if you haven't