logcat 提示 Unable to open log device '/dev/log/main': No such file or directory

解决办法：

1. Open: /system/etc/init.d/××× （not the same file on different ROMs, find the right file）
2. Find the line that says: rm /dev/log/main
3. Change the line to: # rm /dev/log/main (comments out the line, rm = remove, in case you were wondering)
4. Save and reboot

意思就是在/system/etc/init.d/目录下，找到相应脚本，打开，如果哪个脚本中包含“rm /dev/log/main ”，就用#注释他，变成“#rm /dev/log/main ”，保存重启，妥妥的