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load .mat file fails in Web App

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Deividas Eringis
Deividas Eringis am 13 Aug. 2021
Kommentiert: Deividas Eringis am 16 Aug. 2021
Hello,
i am trying to implement save/load functionality for a web app, everything works fine locally but load(filename) function fails on a web app,
%% Save Function
[file,path] = uiputfile('*.mat','Save patient data as .mat file')
if file~=0
resultFilePath = fullfile(path,file)
inputs={};
for i=1:numel(app.UIList)
inputs{i}=app.UIList{i}{2}.Data; % app.UIList{i}{2} are UITables
end
save(resultFilePath,'inputs','-v7','-nocompression')
end
%% Load Function
[file,pathn] = uigetfile('*.mat','File Selector');
disp(file)
disp(pathn)
if isequal(file,0)==false
inpuFilePath = fullfile(pathn,file)
try
Data=load(inpuFilePath);
inputs=Data.inputs;
%
%... CODE BLOCK FOR PROCESSING 'inputs'
%
catch ME
fprintf('error: \n');
fprintf('%s : %s\n',ME.identifier,ME.message);
fprintf('........\n');
fid=fopen(inpuFilePath);
dat=fread(fid,[1,90],'uint8');
fprintf('%s ',dat)
fprintf('\n')
end
end
Saving works fine, i get a file that i can load in matlab and everything is there, so the file is not corrupted, however when i load in web app, it says it is corrupted, why???
2021-08-13 10:51:47 test2.mat is uploaded successfully
2021-08-13 10:51:47 test2.mat
2021-08-13 10:51:47 /local/MathWorks/webapps/R2020b/USR/services/mdwas/sessions/8c115db5-9dc8-44be-88e6-928d4a4c6f89/1/
2021-08-13 10:51:48 inpuFilePath =
2021-08-13 10:51:48 '/local/MathWorks/webapps/R2020b/USR/services/mdwas/sessions/8c115db5-9dc8-44be-88e6-928d4a4c6f89/1/test2.mat'
2021-08-13 10:51:48 error:
2021-08-13 10:51:48 MATLAB:load:unableToReadMatFile : Unable to read MAT-file /local/MathWorks/webapps/R2020b/USR/services/mdwas/sessions/8c115db5-9dc8-44be-88e6-928d4a4c6f89/1/test2.mat. File might be corrupt.
2021-08-13 10:51:48 ........
2021-08-13 10:51:48 MATLAB 5.0 MAT-file, Platform: GLNXA64, Created on: Fri Aug 13 10:49:37 2021
  2 Kommentare
Muhammed Yaseen
Muhammed Yaseen am 16 Aug. 2021
Bearbeitet: Muhammed Yaseen am 16 Aug. 2021
I understand that you are unable to load a file which you have created in the Web app, but you are able to load it in MATLAB. Can you see if the following links can help?
Deividas Eringis
Deividas Eringis am 16 Aug. 2021
i have seen the second link, that's why i did fread() to see if the file is there at all,
the first link is interesting it might be that there is an older runtime installed, i will contact my server administrator and check, thanks, i know for a fact that the oldest runtime installed could be 2019b which i would not expect to have problems loading .mat files.

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