使用adb,突然找不到设备了。。。no devices/emulators found
$ adb devices
List of devices attached
1.那么可以查找一下Android SDK的目录:
$ echo $PATH
/Users/admin/.rvm/gems/ruby-2.2.4/bin:/Users/admin/.rvm/gems/ruby-2.2.4@global/bin:/Users/admin/.rvm/rubies/ruby-2.2.4/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home:/Users/admin/Library/Android/sdk/platform-tools:/Users/admin/.rvm/bin