Goodevening,
  today i have upgraded arduino sdk from 1.5.6r to 1.5.8.
Before this update i work with your visual studio plugin without problem.
After update i retrive "Error compiling" in any project i load.
In arduino ide the same project are compiled correctly.

What can i do?

Here the verbose output of a blink example

Compiling 'Blink' for 'Arduino Uno'
Build folder: file:///C:/Users/montecchil/AppData/Local/VMicro/Arduino/Builds/Blink/uno
Summary: Header=1 Prototypes=3 Imports=0
Additional Defines: 
Architecture Tools: C:\Program Files\Arduino/hardware/tools/avr/bin/
GCC: 4.8.1
Sketchbook: file:///C:/Users/montecchil/Documents/Arduino
Core Include Paths
Include Path 'C:\Program Files\Arduino\hardware\arduino\avr\cores\arduino'
Include Path 'C:\Program Files\Arduino\hardware\arduino\avr\variants\standard'
"C:\Program Files\Arduino/hardware/tools/avr/bin/avr-g++" -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=158 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -I"C:\Program Files\Arduino\hardware\arduino\avr\cores\arduino" -I"C:\Program Files\Arduino\hardware\arduino\avr\variants\standard" "C:\Users\montecchil\AppData\Local\VMicro\Arduino\Builds\Blink\uno\Blink.cpp" -o "C:\Users\montecchil\AppData\Local\VMicro\Arduino\Builds\Blink\uno\Blink.cpp.o"
Error compiling