Discussion:
unable to delete a file
(too old to reply)
n o s p a m p l e a s e
2008-05-29 13:23:26 UTC
Permalink
I have a code that looks as follows:

---------------mytest.m--------------
clear all;

delete report.txt

fid = fopen('report.txt','a');
fprintf(fid, '\n %7d',refBus);
fclose(fid);
----------------------------------------

In the above code deletion of report.txt is not carried out. I get the
warning below.

Warning: File not found or permission denied

Even manually I cannot delete this file unless I close Matlab. What
can I do to delete this file without closing Matlab?

NSP
someone
2008-05-29 13:58:02 UTC
Permalink
n o s p a m p l e a s e <***@alum.com> wrote in
message <77024167-c932-4c22-8180-
Post by n o s p a m p l e a s e
---------------mytest.m--------------
clear all;
delete report.txt
fid = fopen('report.txt','a');
fprintf(fid, '\n %7d',refBus);
fclose(fid);
----------------------------------------
In the above code deletion of report.txt is not carried
out. I get the
Post by n o s p a m p l e a s e
warning below.
Warning: File not found or permission denied
Even manually I cannot delete this file unless I close
Matlab. What
Post by n o s p a m p l e a s e
can I do to delete this file without closing Matlab?
NSP
% The delete command works for me

% Why not just use the w option instead?

---------------mytest.m--------------
clear all;


fid = fopen('report.txt','w');
fprintf(fid, '\n %7d',refBus);
fclose(fid);
----------------------------------------
Walter Roberson
2008-05-29 16:22:22 UTC
Permalink
Post by n o s p a m p l e a s e
---------------mytest.m--------------
clear all;
delete report.txt
fid = fopen('report.txt','a');
fprintf(fid, '\n %7d',refBus);
fclose(fid);
----------------------------------------
In the above code deletion of report.txt is not carried out. I get the
warning below.
Warning: File not found or permission denied
You would get that if the file is already open within Matlab (or
within any other program.) Windows does not allow files to be deleted
if a process has them open.
--
"The study of error is not only in the highest degree
prophylatic, but it serves as a stimulating introduction to the
study of truth." -- Walter Lipmann
Steven Lord
2008-05-29 16:40:13 UTC
Permalink
In article
Post by n o s p a m p l e a s e
---------------mytest.m--------------
clear all;
delete report.txt
fid = fopen('report.txt','a');
fprintf(fid, '\n %7d',refBus);
fclose(fid);
----------------------------------------
In the above code deletion of report.txt is not carried out. I get the
warning below.
Warning: File not found or permission denied
You would get that if the file is already open within Matlab (or
within any other program.) Windows does not allow files to be deleted
if a process has them open.
To expand on Walter's diagnosis, if your code errored at some point after
you FOPENed the file but before you FCLOSEd it (say as you were working on
creating your code), it would still be open. Use FOPEN with the 'all' flag
to determine if this is the case and use FCLOSE on the obtained fids if it
is.
--
Steve Lord
***@mathworks.com
David
2015-09-14 19:50:03 UTC
Permalink
Post by Steven Lord
In article
Post by n o s p a m p l e a s e
---------------mytest.m--------------
clear all;
delete report.txt
fid = fopen('report.txt','a');
fprintf(fid, '\n %7d',refBus);
fclose(fid);
----------------------------------------
In the above code deletion of report.txt is not carried out. I get the
warning below.
Warning: File not found or permission denied
You would get that if the file is already open within Matlab (or
within any other program.) Windows does not allow files to be deleted
if a process has them open.
To expand on Walter's diagnosis, if your code errored at some point after
you FOPENed the file but before you FCLOSEd it (say as you were working on
creating your code), it would still be open. Use FOPEN with the 'all' flag
to determine if this is the case and use FCLOSE on the obtained fids if it
is.
--
Steve Lord
I have the same problem. I tried your solution and still could not delete the file in windows. I get an error message in windows 7 that says:
"The action cannot be completed because the file is open in JxBrowser Chromium Native Process
Close the file and try again".
Colin Edgar
2015-12-17 23:50:03 UTC
Permalink
Post by David
Post by Steven Lord
In article
Post by n o s p a m p l e a s e
---------------mytest.m--------------
clear all;
delete report.txt
fid = fopen('report.txt','a');
fprintf(fid, '\n %7d',refBus);
fclose(fid);
----------------------------------------
In the above code deletion of report.txt is not carried out. I get the
warning below.
Warning: File not found or permission denied
You would get that if the file is already open within Matlab (or
within any other program.) Windows does not allow files to be deleted
if a process has them open.
To expand on Walter's diagnosis, if your code errored at some point after
you FOPENed the file but before you FCLOSEd it (say as you were working on
creating your code), it would still be open. Use FOPEN with the 'all' flag
to determine if this is the case and use FCLOSE on the obtained fids if it
is.
--
Steve Lord
"The action cannot be completed because the file is open in JxBrowser Chromium Native Process
Close the file and try again"
I too have the same issue. I have fclose() in use in script. An inquiry of fopen('all') returns []. In Win7 get error of "The action cannot be completed because the file is open in JxBrowser Chromium Native Process.Close the file and try again"
Allen
2016-12-21 23:49:03 UTC
Permalink
I also have this problem in Windows 7 and MATLAB R2016a after getting an error in my script. fopen all results in []; I have tried fclose all; and I still get the same error message - "Action can't be completed because the file is open in JxBrowser Chromium Native Process". There is clearly a problem here. Has anyone been able to solve it other than by completely shutting down Matlab?
Post by Colin Edgar
Post by David
Post by Steven Lord
To expand on Walter's diagnosis, if your code errored at some point after
you FOPENed the file but before you FCLOSEd it (say as you were working on
creating your code), it would still be open. Use FOPEN with the 'all' flag
to determine if this is the case and use FCLOSE on the obtained fids if it
is.
--
Steve Lord
"The action cannot be completed because the file is open in JxBrowser Chromium Native Process
Close the file and try again"
I too have the same issue. I have fclose() in use in script. An inquiry of fopen('all') returns []. In Win7 get error of "The action cannot be completed because the file is open in JxBrowser Chromium Native Process.Close the file and try again"
Igor
2017-02-24 18:50:03 UTC
Permalink
Post by Allen
I also have this problem in Windows 7 and MATLAB R2016a after getting an error in my script. fopen all results in []; I have tried fclose all; and I still get the same error message - "Action can't be completed because the file is open in JxBrowser Chromium Native Process". There is clearly a problem here. Has anyone been able to solve it other than by completely shutting down Matlab?
Post by Colin Edgar
Post by David
Post by Steven Lord
To expand on Walter's diagnosis, if your code errored at some point after
you FOPENed the file but before you FCLOSEd it (say as you were working on
creating your code), it would still be open. Use FOPEN with the 'all' flag
to determine if this is the case and use FCLOSE on the obtained fids if it
is.
--
Steve Lord
"The action cannot be completed because the file is open in JxBrowser Chromium Native Process
Close the file and try again"
I too have the same issue. I have fclose() in use in script. An inquiry of fopen('all') returns []. In Win7 get error of "The action cannot be completed because the file is open in JxBrowser Chromium Native Process.Close the file and try again"
Me as well, Matlab R2016b. But the file was created with diary() function, not fopen().
I'm still unable to produce a stable reproduction recipe to report to Mathworks. But it would be nice if anyone would find it. I suspect, that this might be associated with parallel processing toolbox, and/or with opening multiple Matlab instances.
Joe
2017-04-28 22:04:03 UTC
Permalink
Post by Igor
Me as well, Matlab R2016b. But the file was created with diary() function, not fopen().
I'm still unable to produce a stable reproduction recipe to report to Mathworks. But it would be nice if anyone would find it. I suspect, that this might be associated with parallel processing toolbox, and/or with opening multiple Matlab instances.
Me too! I am using the parallel tool box to open multiple files. I've got multiple " fclose('all');" statements riddled throughout the code, but after the parfor loop ends, I cannot delete the files. Any updates anyone?
Chetan
2017-07-11 18:13:07 UTC
Permalink
This post might be inappropriate. Click to display it.
Igor
2017-07-11 20:04:07 UTC
Permalink
This post might be inappropriate. Click to display it.
l***@gmail.com
2019-03-06 10:38:16 UTC
Permalink
Post by Igor
Hi Chetan,
Post by Chetan
Post by n o s p a m p l e a s e
---------------mytest.m--------------
clear all;
delete report.txt
fid = fopen('report.txt','a');
fprintf(fid, '\n %7d',refBus);
fclose(fid);
----------------------------------------
In the above code deletion of report.txt is not carried out. I get the
warning below.
Warning: File not found or permission denied
Even manually I cannot delete this file unless I close Matlab. What
can I do to delete this file without closing Matlab?
NSP
If you have source control enabled then MATLAB won't allow you to delete the file.
Disable it at Home/preferences/General/Source control -> None
I have this same problem in Matlab R2018a and R2018b, but i can workaround it by shutting down the parallel pool before accessing the diary file (i actually move the file). This seems to always work for me....
Kalkin Powale
2023-03-24 10:21:51 UTC
Permalink
Post by l***@gmail.com
Post by Igor
Hi Chetan,
Post by Chetan
Post by n o s p a m p l e a s e
---------------mytest.m--------------
clear all;
delete report.txt
fid = fopen('report.txt','a');
fprintf(fid, '\n %7d',refBus);
fclose(fid);
----------------------------------------
In the above code deletion of report.txt is not carried out. I get the
warning below.
Warning: File not found or permission denied
Even manually I cannot delete this file unless I close Matlab. What
can I do to delete this file without closing Matlab?
NSP
If you have source control enabled then MATLAB won't allow you to delete the file.
Disable it at Home/preferences/General/Source control -> None
I have this same problem in Matlab R2018a and R2018b, but i can workaround it by shutting down the parallel pool before accessing the diary file (i actually move the file). This seems to always work for me....
For 2022b use: fclose('all') before calling delete function it works.
Martin Lawrece
2023-09-11 21:35:53 UTC
Permalink
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