Why am I getting undefined function errors?

Below is a snippet of my Matlab console window. Matlab can find the file in question, but it will not run it. I've gone through the answer here, but that does not help. What am I doing wrong here?

>> which -all instrhwinfo
C:\Program Files\MATLAB\R2012a\toolbox\shared\instrument\@instrument\instrhwinfo.m  % instrument method
>> instrhwinfo('serial')
Undefined function 'instrhwinfo' for input arguments of type 'char'.

>> instrhwinfo
Undefined function or variable 'instrhwinfo'.

>> help instrhwinfo
 --- help for instrument/instrhwinfo ---

   instrhwinfo Return information on available hardware.

   [...]

    Example:
        out1 = instrhwinfo
        out2 = instrhwinfo('serial');
        out3 = instrhwinfo('gpib', 'ni');
        out4 = instrhwinfo('visa', 'ni');
        out5 = instrhwinfo('visa', 'ni', 'gpib');
        obj = visa('ni', 'ASRL1::INSTR');
        out6 = instrhwinfo(obj);
        out7 = instrhwinfo(obj, 'AdaptorName');

    See also instrhelp.
>> ver
-------------------------------------------------------------------------------------------------------
MATLAB Version: 7.14.0.739 (R2012a)
MATLAB License Number: 
Operating System: Microsoft Windows 7 Version 6.1 (Build 7601: Service Pack 1)
Java Version: Java 1.6.0_17-b04 with Sun Microsystems Inc. Java HotSpot(TM) 64-Bit Server VM mixed mode
-------------------------------------------------------------------------------------------------------
MATLAB                                                Version 7.14       (R2012a)

[Geoff Hayes]

James - when you typed ver, I notice that the result does not include the Instrument Control Toolbox. Did you have this toolbox at one time but no longer?

[James]

Ah! That must be what is meant by "Run "ver" again to see if the toolbox is installed". I was a bit confused about what that meant. I will probably need to get ahold of that toolbox then.

[James]

Yes, that is my issue, Geoff. Thanks for your input. If you create an answer, I can mark it as the accepted answer.

Answer 1

[Geoff Hayes]

When James typed ver into the Command Window, the result showed only the version of MATLAB and did not include the Instrument Control Toolbox and so he will have to obtain it again.