Compilation error

I downloaded the recent version of the RepRap firmware.
When trying to download the FW, I get the following error message orignating from the Extruder.cpp:

C:\Users\Uli\AppData\Local\Temp\build6736124270978382888.tmp\Extruder.cpp: In static member function 'static void TemperatureController::resetAllErrorStates()':
C:\Users\Uli\AppData\Local\Temp\build6736124270978382888.tmp\Extruder.cpp:396:3: error: 'tempController' was not declared in this scope
tempController->removeErrorStates();
Fehler beim Kompilieren.

For Compilation I used the Arduino1.6.0 software / but same result I had also with other earlier Arduino Versions.
I am not 100 familar with C++ so I need some help to solve the issue.
A firmware download is not possible.

Me too. Who can help ?