MATLAB: Is the GUI program producing an error when I ‘Run’ it

Whenever i run .m file,it shows following error.How can i remove this?

my code is linked here named charGUI10.m. and the error is shown in the picture named capture.png

The error message states that the function plotchar isn't found.

>> plotchar
'plotchar' requires Character Recognition Example. 
>> which plotchar -all
<snip>\Documents\MATLAB\Examples\nnet\appcr1\plotchar.m
>>

Possible measures

add <snip>\Documents\MATLAB\Examples\nnet\appcr1\plotchar.m to the path.
make a copy of plotchar with a slighly different name, e.g. plotchar2, and replace plotchar by plotchar2 in charGUI10.m. I would have done that to avoid messing with the examples.

Well, don´t know what´s your problem. It might be something with the settings. I tried it and it worked perfectly with default values.

run does not work with functions, it only works with scripts:

If you want to call a function with some dynamic name, then you can use str2func like this:

str = sprintf('%s_%s_%s',a,b,c);
fun = str2func(str);
fun("alpha") % call it with whatever input arguments it requires.

Of course the function will need to be on the MATLAB Search Path or in the current directory.