When i run code using Computer Vision System toolbox, i get this error of using an undefined function or class vision.PointTracker? even when I have downloaded the toolbox correctly

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sunaina aytan 2018-3-22

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https://ww2.mathworks.cn/matlabcentral/answers/390110-when-i-run-code-using-computer-vision-system-toolbox-i-get-this-error-of-using-an-undefined-functio

评论： sunaina aytan 2018-3-23

When I run code using Computer Vision System toolbox, I get this error of using an undefined function or class vision.PointTracker? Even when I have downloaded the toolbox correctly.

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Answer 1

Walter Roberson 2018-3-22

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You can get that error if you do not have the Computer Vision Toolbox licensed.

What shows up for

which vision.PointTracker

(You can also get that error if you are using MATLAB R2010a through R2011b, as vision.PointTracker was introduced in R2012a.)

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sunaina aytan 2018-3-23

Hi thank you for your response,

I had uninstalled the toolbox and tried to reinstall the tool box but keep getting this error Downloads/MathWorks/R2017a/archives/common/vision_common_1487291449.enc (No such file or directory) Would you like to retry installing vision_common? If you press No, the installer will exit without completing the installation. More information can be found at /var/folders/2_/mrz3s5yj6kg1gdfv9prz0k580000gn/T/mathworks_Sunaina.log

sunaina aytan 2018-3-23