Matlab 2015a Java error after fresh installation?

8 次查看（过去 30 天）
ptrk
ptrk 2015-3-27
回答： yoshiki watanabe 2022-6-13
Hi everyone,
after fresh Matlab installation on win8.1 64bit i get following fatal error on startup:
java exeption occured java.lang.noClassDefFoundError: Could not initialize class sun.awt.Win32FontManager
... ...
can anyone help me?

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采纳的回答

Anusha B
Anusha B 2015-3-30
Hi,
1. You can try executing the following commands:
restoredefaultpath
rehash toolboxcache
2. A corrupt installation may also be a cause of the issue.
  1 个评论
Filippo Desantis
Filippo Desantis 2019-12-22
Hi, I have the same problem but your solution unfortunately didn't resolve, instead a new warning appeared, "Warning: Function sim has the same name as a MATLAB builtin. We suggest you rename the function to avoid a potential name conflict." could you help me ?

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更多回答（4 个）

ALI
ALI 2018-7-18
Hi Anusha,
MATLAB is giving that java error message at statup..
I just see matlab logo and error message.
How can I execute 1. restoredefaultpath 2. rehash toolboxcache?
Sincerely,
  2 个评论
Cedric Girerd
Cedric Girerd 2019-3-15
Hi there!
Could you tell me how you solved your problem? I have the same issue at the moment, and can't manage to find a solution. Don't have access to Matlab either, so no way for me to run some commands in it.
Best,

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Ralph Gunderson
Ralph Gunderson 2019-11-17
Using the Command Prompt, you can navigate to your matlab installaton folder and launch Matlab without the desktop using
matlab -nodesktop
Then you can execute the commands from the Matlab command line interface. I am having the same problem as you, and folllowed this suggestion. However, Matlab will still not open.
Malek Ben Alaya
Malek Ben Alaya 2019-12-21
has anyone found a solution please ????
yoshiki watanabe
yoshiki watanabe 2022-6-13
I found similar error (NOT exactly same as the above error) on MATLAB 2022a, and resolved. On my situation, that error is because of existence of old version of MATLAB. After I deleted the old version, my new version of MATLAB worked.

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