[ERROR] FOUserAgent - Image not found. Encountered using publish r2018a

Question

David Clemens-Sewall 2018-4-26

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https://ww2.mathworks.cn/matlabcentral/answers/397645-error-fouseragent-image-not-found-encountered-using-publish-r2018a

评论： Bernardino Leonado Jaramillo Miranda 2021-12-7

I recently changed from r2016b to r2018a and now the publish function is not displaying plots. When I attempt to publish the following code to pdf I receive the subsequent error and the pdf publishes without the plot.

Code:

% test_publish.m
figure;
plot(1:10);

<<untitled.tif>>

Error

[ERROR] FOUserAgent - Image not found. URI: C:/Users/David Clemens-Sewall/AppData/Local/Temp/test_publish_01.bmp. (See position -1:-1)
[ERROR] FOUserAgent - Image not found. URI: C:/Users/David Clemens-Sewall/AppData/Local/Temp/test_publish_01.bmp. (No context info available)

I'm operating on Windows 10 and unfortunately I had already deleted r2016b so I cannot simply return to using that. By saving the plot and then loading it explicitly I can add it to the pdf. So it seems that publish is capable of loading and displaying the image it's just that matlab is trying to write the plots to a location it cannot access (the directory does exist, but when I go there I do not find the plots). I've looked at changing my temporary directory but unfortunately clear all followed by setenv doesn't seem to change that either (it keeps stubbornly returning to 'C:/Users/David Clemens-Sewall/AppData/Local/Temp/'). So I'm not sure where to go next. Thank you!

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Image Analyst 2018-6-6

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Did you change your original question and code? This code

% test_publish.m
figure;
plot(1:10);

<<untitled.tif>>

that you posted would not cause any problem. It will run (I tried it), though if you call it publish.m, it will override the build-in publish() function, which is never a good idea.

VIVEK RUHELA 2019-2-27

@Image Analyst :

I am facing the same problem in Matlab-2018b. With code given in question, I am not getting any image in pdf file. Rest plot is working fine but while publishing, I am getting the same error as reported in the question. Any other suggestions....

Thanks

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Answer 1

Ben Drebing 2018-6-5

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https://ww2.mathworks.cn/matlabcentral/answers/397645-error-fouseragent-image-not-found-encountered-using-publish-r2018a#answer_323383

It looks like this error happens if there is a space in a folder name in the path to your current working folder. So, if you move your code somewhere else so that none of the folders in the path have a space in their name, you should be able to publish.

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Walter Roberson 2018-6-6

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Historically, some of the Mathworks tools and some of the third-party tools have failed to put quotation marks around names when building command lines to be executed by the shell. For example,

include_dir = fullfile(matlabroot, 'include');
cmd = ['copyfile ' include_dir '\mex.h .]
system(cmd)

Might turn into

copyfile c:\Programs And Executables\MATLAB\R2018a\include\mex.h .

which will fail because copyfile will interpret that as having arguments

c:\Programs
And
Executables\MATLAB\R2018a\include\mex.h
.

More proper code would have been

include_dir = fullfile(matlabroot, 'include');
cmd = sprintf('copyfile "%s\\mex.h" .', include_dir);
system(cmd)

which would turn into

copyfile "c:\Programs And Executables\MATLAB\R2018a\include\mex.h" .

which turns into copyfile arguments

c:\Programs And Executables\MATLAB\R2018a\include\mex.h
.

Simulink used to be quite bad at this. The third-party android tools used to be weak on this as well.

When there is a bug like this, if you just happen to be using a directory and file that contains no spaces, then everything works.

Bradley Stiritz 2020-2-26

编辑：Bradley Stiritz 2020-2-26

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Hi Ben,

I'm working in R2019b Update 4, and I'm experiencing this same issue. I'm not seeing any embedded spaces on my end-- Maybe I'm not understanding your suggested workarounds--?

Ben>It looks like this error happens if there is a space in a folder name in the path to your current working folder.

>> pwd
ans ='W:\Matlab-work\FATE'

Ben>So, if you move your code somewhere else so that none of the folders in the path have a space in their name, you should be able to publish.

My MLX file is in the following folder--

W:\Matlab-work\FATE\Studies\Ad-Hoc

Here's one of the error messages I got, when I tried to export MLX to PDF--

[ERROR] FOUserAgent - Image not found. URI: file:///C:/Users/brads/AppData/Local/Temp/Exporter9081147262246435610/0B6E7D67.png. (See position 1:6301)

But are you saying that we have to check the entire Matlab path, to ensure there are no spaces in any of the folders? I'm sorry, but this sounds a little onerous, doesn't it..?

Any further clarification appreciated please,

Thanks,

Brad

Walter Roberson 2020-5-5

Brad Stiritz, I do not think you are encountering the same problem.

ava yektaeian 2021-11-29

Thanks, really helpful

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Answer 2

Marc Youcef 2020-5-5

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https://ww2.mathworks.cn/matlabcentral/answers/397645-error-fouseragent-image-not-found-encountered-using-publish-r2018a#answer_430550

I am still having this issue on R2020a which is a long way from when that problem was first spot...

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Answer 3

Cesar Martinez Delgado 2018-8-21

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编辑：Cesar Martinez Delgado 2018-8-21

I have the same problem when I try to publish pdfs or docs. I have tried to change the entire folder to a new one that does not have space in the name. Also, I tried adding to the path the folder that is show in the error. And kind of made the entire track of the function publish to catch the mistake because it. But, it always drops the same error heading to the same path, using the OP sample: C:/Users/ David Clemens-Sewall/AppData/Local/Temp/ Any further assistance on this? Changing the user name would in theroy help, but i do not know if it is gonna mess other applications, which I would avoid to happen. thank you

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Answer 4

Ryan Whitney 2019-9-24

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I continue to run into this issue. Sometimes it happens and if I change something in the code (minor, unrelated) or restart Matlab and it will output.

Other times, like RIGHT NOW (very frustrated) there appears to be nothing I can do to export this to PDF. I've had this issue on multiple versions :(.

I'd like to see MathWorks work on fixing this as they are clearly putting work into Livescripts and having the ability to run an analysis and export to PDF is super useful (still some formatting controls to work out, but I'm patient on that).

I'm running 2019b, on MacOS 10.14.6.

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Ryan Whitney 2019-9-24

I've looked in the folder on my laptop where the images are supposed to be and it does not exist. So that explains the error - but I see all the plots in the viewer, but they are not where Matlab wants to look on the file system.

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Answer 5

Robert Herring 2020-2-1

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https://ww2.mathworks.cn/matlabcentral/answers/397645-error-fouseragent-image-not-found-encountered-using-publish-r2018a#answer_413192

The easiest way to solve this is by changing your user environment variables so that the TMP and TEMP variable have a filepath with no spaces in them. I made a folder on my C drive called 'Temp', then set the environment variables TEMP and TMP for my user to 'C:\Temp'. The following Micrsoft tutorial will help.