Why did I get this bunch of funny messages after installing R2021a?

After I let the MATLAB installer install Home Use R2021a on my Lenovo laptop with Windows 10, the MATLAB screen displayed this bunch of messages. The installation otherwise seems to work OK. Are they just harmless squawking and thus ignorable?

=======================================================================================================

Caught "std::exception" Exception message is:

Error open a file stream for write.

Home License -- for personal use only. Not for government,

academic, research, commercial, or other organizational use.

Exception in thread "AWT-EventQueue-0": java.security.PrivilegedActionException: java.io.FileNotFoundException: matlab.desktop.currentfolder.detailviewer.Collapsed

at java.security.AccessController.doPrivileged(Native Method)

at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:74)

at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)

at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:205)

at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)

at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)

at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)

at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)

at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

Caused by: java.io.FileNotFoundException: matlab.desktop.currentfolder.detailviewer.Collapsed

at com.mathworks.services.settings.Setting.nativeSet(Native Method)

at com.mathworks.services.settings.Setting.set(Setting.java:913)

at com.mathworks.services.settings.Setting.set(Setting.java:769)

at com.mathworks.services.Prefs.changeSettingValue(Prefs.java:1198)

at com.mathworks.services.Prefs.setPrefValue(Prefs.java:1123)

at com.mathworks.services.Prefs.setBooleanPref(Prefs.java:960)

at com.mathworks.mlwidgets.explorer.ExplorerSplitPanePrefs.setCollapsed(ExplorerSplitPanePrefs.java:56)

at com.mathworks.mlwidgets.explorer.DetailViewer.expand(DetailViewer.java:400)

at com.mathworks.mlwidgets.explorer.ExplorerSplitPane$3.run(ExplorerSplitPane.java:127)

at com.mathworks.mwswing.MJUtilities.runOnEventDispatchThread(MJUtilities.java:911)

at com.mathworks.mlwidgets.explorer.ExplorerSplitPane.syncDetailViewerSizeFromPrefs(ExplorerSplitPane.java:118)

at com.mathworks.mlwidgets.explorer.ExplorerSplitPane.initialize(ExplorerSplitPane.java:87)

at com.mathworks.mde.explorer.Explorer$19.run(Explorer.java:1018)

at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)

at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)

at java.awt.EventQueue.access$500(EventQueue.java:97)

at java.awt.EventQueue$3.run(EventQueue.java:709)

at java.awt.EventQueue$3.run(EventQueue.java:703)

... 9 more

Exception in thread "AWT-EventQueue-0": java.security.PrivilegedActionException: java.security.PrivilegedActionException: java.io.FileNotFoundException: matlab.workingfolder.LastFolderPath

at java.security.AccessController.doPrivileged(Native Method)

at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:74)

at java.awt.EventQueue.dispatchEvent(EventQueue.java:730)

at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:205)

at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)

at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)

at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)

at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)

at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

Caused by: java.security.PrivilegedActionException: java.io.FileNotFoundException: matlab.workingfolder.LastFolderPath

at java.security.AccessController.doPrivileged(Native Method)

at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:74)

at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:84)

at java.awt.EventQueue$4.run(EventQueue.java:733)

at java.awt.EventQueue$4.run(EventQueue.java:731)

... 9 more

Caused by: java.io.FileNotFoundException: matlab.workingfolder.LastFolderPath

at com.mathworks.services.settings.Setting.nativeSet(Native Method)

at com.mathworks.services.settings.Setting.set(Setting.java:913)

at com.mathworks.services.settings.Setting.set(Setting.java:769)

at com.mathworks.services.settings.Setting.set(Setting.java:709)

at com.mathworks.mlwidgets.prefs.InitialWorkingFolder.setStringSettingValue(InitialWorkingFolder.java:50)

at com.mathworks.mlwidgets.prefs.InitialWorkingFolder.access$000(InitialWorkingFolder.java:15)

at com.mathworks.mlwidgets.prefs.InitialWorkingFolder$1.actionPerformed(InitialWorkingFolder.java:34)

at com.mathworks.jmi.MatlabPath$DeferredActionEvent.dispatch(MatlabPath.java:168)

at com.mathworks.util.QueueEvent$QueueTarget.processEvent(QueueEvent.java:85)

at java.awt.Component.dispatchEventImpl(Component.java:4889)

at java.awt.Component.dispatchEvent(Component.java:4711)

at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:760)

at java.awt.EventQueue.access$500(EventQueue.java:97)

at java.awt.EventQueue$3.run(EventQueue.java:709)

at java.awt.EventQueue$3.run(EventQueue.java:703)

... 14 more

[Star Strider]

Contact Support

Include the URL to this thread so you don’t have to repeat it.