Cannot input images

[Tommy Yiu]

Hello Dr. William Thielicke, I can not  input the images, The  command window shows:

Warning: Variable 'sequencer' not found.

In: gui.uipickfiles_pre_2025 (line 463)

In: import.loadimgsbutton_Callback (line 38)

Function or variable 'sequencer' is not recognized.

Error in gui.uipickfiles_pre_2025/done (line 1253)

setappdata(hgui, 'sequencer', sequencer); %default style

^^^^^^^^^

Error while evaluating UIControl Callback.

[thielickeoptolution]

Hi, please show the full startup messages from the Matlab command window.  The most likely reason is that PIVlab_settings_default.mat is not found in the available directories.

Please enter the following commands in Matlab after you have started PIVlab and show the output:

which PIVlab_settings_default.mat

path

clear;load (which('PIVlab_settings_default.mat'),'sequencer');exist('sequencer','var')

[Tommy Yiu]

Thanks for your kind and prompt reply.

1.The start message is as follows:

>> PIVlab_GUI
Only one instance of PIVlab is allowed to run.
>> PIVlab_GUI
-> Starting PIVlab...
-> Use the command "PIVlab_GUI(Nr_of_cores)" to select the amount of computation cores.
-> PIVlab 3.12, built on: 24-Sep-2025 13:47:17 ...
-> Using MATLAB version 24.2 (R2024b) on PCWIN64.
-> User path is C:\Users\Tao Yao\Documents\MATLAB
-> Write access in current folder ok.
-> All required package folders found.
-> UI generated.
-> Menu generated.
-> Matlab version check ok.
-> Image Processing Toolbox found.
-> Distributed Computing disabled.
-> No previous path found, using default path.
something went wrong during settings loading
-> Got default settings from: D:\Download Application\PIVlab\PIVlab_settings_default.mat
-> You have the latest PIVlab version.

2.What the command window shows when input the images is as list just now:

3. AFTER run the codes you shared, there are many lines about the path, and the last few lines are: 

C:\Users\Tao Yao\AppData\Roaming\MathWorks\MATLAB Add-Ons\Toolboxes\PIVlab\+wOFV\OptimizationSolvers\minFunc\autoDif
C:\Users\Tao Yao\AppData\Roaming\MathWorks\MATLAB Add-Ons\Toolboxes\PIVlab\OptimizationSolvers\minFunc\logisticExample
C:\Users\Tao Yao\AppData\Roaming\MathWorks\MATLAB Add-Ons\Toolboxes\PIVlab\unittests
C:\Users\Tao Yao\AppData\Roaming\MathWorks\MATLAB Add-Ons\Toolboxes\PIVlab\Example_scripts
C:\Users\Tao Yao\AppData\Roaming\MathWorks\MATLAB Add-Ons\Toolboxes\PIVlab\+wOFV\OptimizationSolvers\minFunc\minFunc
C:\Users\Tao Yao\AppData\Roaming\MathWorks\MATLAB Add-Ons\Toolboxes\PIVlab\+wOFV\OptimizationSolvers\minFunc
C:\Users\Tao Yao\AppData\Roaming\MathWorks\MATLAB Add-Ons\Toolboxes\PIVlab\OptimizationSolvers\minFunc\autoDif
C:\Users\Tao Yao\AppData\Roaming\MathWorks\MATLAB Add-Ons\Toolboxes\PIVlab\OptimizationSolvers\minFunc\minFunc
C:\Users\Tao Yao\AppData\Roaming\MathWorks\MATLAB Add-Ons\Toolboxes\PIVlab\OptimizationSolvers\minFunc
C:\Users\Tao Yao\AppData\Roaming\MathWorks\MATLAB Add-Ons\Toolboxes\PIVlab\doc
C:\Users\Tao Yao\AppData\Roaming\MathWorks\MATLAB Add-Ons\Toolboxes\PIVlab
C:\Users\Tao Yao\AppData\Roaming\MathWorks\MATLAB Add-Ons\Toolboxes\PIVlab\+wOFV\OptimizationSolvers\minFunc\logisticExample
C:\Users\Tao Yao\AppData\Roaming\MathWorks\MATLAB Add-Ons\Toolboxes\PIVlab\PIVlab_capture_resources

Warning: Variable 'sequencer' not found.

> Location: PIVlab_GUI (Line 462)

ans =

     0

4. The PIVlab_settings_default.mat and Pivlab_GUI.m are in a same directory.

[Tommy Yiu]

I redownload the zip files, and the images can be input. So I think maybe there are some problems about the pivlansettingsdefault.mat.

在2026年4月9日星期四 UTC+8 21:33:22<thielickeoptolution> 写道：