Update of Firmata caused the code to crash

[wbadry]

Hi,
I tried C# example Blink. Program is built with no errors. I made sure that I selected the correct COM port .When I run it , I confronted this error:

I uploaded the standardfirmata.ino shipped with Arduino IDE 1.6.2. The library version is 2.5.4.

I'm running it from Visual Studio 2015 and .NET framework 4.0