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I keep getting the error "Error: File: builtin.m Line: 1 Column: 24 Invalid text character...". How do I fix this?

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Dinithi
Dinithi 2024-9-9，22:13
评论： Dinithi 2024-9-16，18:43
Hi,
The full error is:
"Error: File: builtin.m Line: 1 Column: 24
Invalid text character. Check for unsupported symbol, invisible character, or pasting of non-ASCII characters."
I get it whenever I try to do anything, including close Matlab. The file name changes slightly depending on what I do: for example, when I try to open a new file, I get the following error:
"Error in matlab.unittest.internal.ui.toolstrip.getFileInfoForToolstrip (line 8)
isClassBasedTest = false;",
preceded by the above text with "false.m" as the file name.
I think the problem started when I tried to set the path? I got the following error:
"Unable to run P-code file. The file header is damaged.
Error in pathtool (line 13)
isDesktop = desktop('-inuse');"
But I'm not sure. Any help that you can give me would be appreciated!
  2 个评论
Steven Lord
Steven Lord 2024-9-10，2:31
Ran in:
Can you confirm that you haven't defined your own builtin.m function that's taking precedence over the built-in builtin function?
which -all builtin
built-in (/MATLAB/toolbox/matlab/lang/builtin) /MATLAB/toolbox/coder/half/@half/builtin.p % half method
What do you see when you look at the first line of builtin.m (which ought to contain just the help text for the built-in builtin)?
dbtype 1 builtin.m
1 %BUILTIN Execute built-in function from overloaded method.
Dinithi
Dinithi 2024-9-10，2:49
编辑：Dinithi 2024-9-10，2:58
I keep getting the error code again...
which -all builtin
Error: File: which.m Line: 1 Column: 24
Invalid text character. Check for unsupported symbol, invisible character, or pasting of non-ASCII
characters.
Error using connector.internal.getClientType
Unable to run P-code file. The file header is damaged.
Error in matlab.desktop.editor.internal.useConnectorEditorService (line 11)
clientType = connector.internal.getClientType();
Error in opentoline>isUnsupported (line 99)
tf = matlab.desktop.editor.internal.useConnectorEditorService ...
Error in opentoline (line 17)
if isUnsupported
and then I get
1 V2MCC8000MEC2000MCR2000
followed by a mess of symbols, some of which are in the image below:
thank you for helping me, by the way!

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采纳的回答

Samay Sagar
Samay Sagar 2024-9-16，9:18
Hi @Dinithi,
It looks like your MATLAB environment has encountered some internal corruption, possibly related to the path settings or some damaged P-code files. You can consider resetting the MATLAB path to its default state by running the following commands:
restoredefaultpath;
rehash toolboxcache;
savepath;
If the error persists, you can try reinstalling MATLAB or connect with the MathWorks support team:
https://www.mathworks.com/support/contact_us.html

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