Undefined function or variable 'rootFolder'.

Question

Salem 2016-4-2

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/276736-undefined-function-or-variable-rootfolder

评论： Walter Roberson 2016-4-5

在 MATLAB Online 中打开

When I am training to implement this function

imageDatastore

I receive

Undefined function or variable 'rootFolder'.

I have this version and those toolbox in my machine

ver
----------------------------------------------------------------------------------------------------
MATLAB Version: (R2015b)
Operating System: Linux 
----------------------------------------------------------------------------------------------------
MATLAB                                                Version 8.6         (R2015b)
Image Processing Toolbox                              Version 9.3         (R2015b)
Neural Network Toolbox                                Version 8.4         (R2015b)
Optimization Toolbox                                  Version 7.3         (R2015b)
Parallel Computing Toolbox                            Version 6.7         (R2015b)
Statistics and Machine Learning Toolbox               Version 10.1        (R2015b)

Any help please

By the way I checked preference and make set the path to default but same problem,

2 个评论
显示无隐藏无

Walter Roberson 2016-4-2

Please show your code and the complete error message

Salem 2016-4-4

在 MATLAB Online 中打开

I am trying to implement convolution neural network in this link http://uk.mathworks.com/help/nnet/convolutional-neural-networks.html and I recieved this error

        imageDatastore undefine
        Undefined function or variable 'rootFolder'.

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Walter Roberson 2016-4-4

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/276736-undefined-function-or-variable-rootfolder#answer_216276

在 MATLAB Online 中打开

The code has the line

rootFolder = fullfile(outputFolder, '101_ObjectCategories');

above the point where it uses rootFolder, so you must have missed some lines in your implementation.

4 个评论
显示 2更早的评论隐藏 2更早的评论

Salem 2016-4-4

OK, what I can do as I have R2015b and I bought it only in this January.

Walter Roberson 2016-4-5

If you bought R2015b within the last calendar year, then if you bought anything other than the cheapest version of the Student Version license, then included in that should have been one year of Software Maintenance Service (SMS). That would entitle you to upgrade to all MATLAB versions released within one year. As R2016a was released well within that year, you should be able to go to https://www.mathworks.com/downloads/select_release?mode=gwylf and download R2016a.

Note: the "unbundled" Student Version license, the very least expensive student license, might possibly not include this service.

请先登录，再进行评论。