求助UBNT编译错误

无名小菜

/home/ubnt/Desktop/SDK.UBNT.v5.5.2/openwrt/include/prereq-build.mk:17: recipe for target 'prereq-non-root' failed
Prerequisite check failed. Use FORCE=1 to override.
/home/ubnt/Desktop/SDK.UBNT.v5.5.2/openwrt/include/toplevel.mk:90: recipe for target 'tmp/.prereq-build' failed
make[1]: *** [tmp/.prereq-build] Error 1
/home/ubnt/Desktop/SDK.UBNT.v5.5.2/openwrt/include/toplevel.mk:112: recipe for target 'world' failed
make: *** [world] Error 2


以上错误 换了好多都不成功，希望大神指点迷津，，谢谢啦