WARNING : volatility.plugins.mimikatz: [LsaDecryptor] unable to find signature!

[GoogleCodeExporter]

I already have Volatility and pycrypto installed.
I downloaded Construct and installed that. I hopefully located the correct one.

However when I run Volatility with the mimikatz.pl plugin, I keep getting the 
following warning message;

"WARNING : volatility.plugins.mimikatz: [LsaDecryptor] unable to find 
signature!"

As for the output, I see the Module, User and Domain columns populated, but 
nothing under the Password column. I tried running a pair of memory captures 
that I made with Belka. 

Original issue reported on code.google.com by [email protected] on 5 May 2014 at 6:29