问题：
在华为U8860上开发应用，但是logcat显示不出来，提示 Unable to open log device '/dev/log/main': No such file or directory。
Solution:
On call screen type *#*#2846579#*#*
opens system management menu
Project menu -> background settings -> Log setting
Log level setting -> VERBOSE Log switch -> LOG on
Dump and Log -> Checked all the boxes
Restart device.
