how can i solv this problem please !!!

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houda taybi
houda taybi on 18 Jun 2021
Answered: Kautuk Raj on 12 Dec 2024
java.lang.IllegalArgumentException: File migratePref.txt should only contain 'T' or 'F'!
java.lang.IllegalArgumentException: File migratePref.txt should only contain 'T' or 'F'!
at com.mathworks.services.Prefs.readMigrateFlag(Prefs.java:2188)
at com.mathworks.services.Prefs.createTwoWayMapPrefsSettings(Prefs.java:373)
at com.mathworks.services.Prefs.<clinit>(Prefs.java:214)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at com.mathworks.util.PostVMInit$StartupClass.init(PostVMInit.java:166)
at com.mathworks.util.PostVMInit.perform(PostVMInit.java:197)
>>
  1 Comment
Image Analyst
Image Analyst on 18 Jun 2021
What caused it? Yesterday As soon as I started MATLAB, I saw a bunch of Java errors in the command window but when I restarted, it didn't show them. The same thing happened later in the day.

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Answers (1)

Kautuk Raj
Kautuk Raj on 12 Dec 2024
The error message you are encountering indicates that the startup preferences for MATLAB are invalid or corrupt.
I suggest you try to to recreate the preferences currently in place on your system using the following article on the MATLAB Answers forum: https://www.mathworks.com/matlabcentral/answers/99625
Try following the steps outlined there, and after doing so launch MATLAB again to check if it resolves the error.

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