Arduino for STM32

I followed the instruction provided in the wiki:

https://github.com/stm32duino/wiki/wiki/Using-git-repository

But it does not seem to be able to find the PATH of the toolchain. The error is as follows:


Detecting libraries used...
/bin/arm-none-eabi-g++ -mcpu=cortex-m0 -mthumb @/tmp/arduino ...