adb uninstall failed

[case]
設定好 ini, 將 usb 連接線 插入平板，
$ adb devices
$ adb usb
$ adb install fname.apk
... Success
$ adb uninstall fname.apk
Failure

--> fname 與 package 名稱不一致

[try]
$ adb shell
root@android:/ # pm list packages |grep com.company1
package : com.company1.apkname
root@android:/ # pm uninstall com.company1.apkname
Success

root@android:/ #  exit

$ adb kill-server


[ref]
http://stackoverflow.com/questions/13534935/adb-uninstall-is-failed