问题
This is the message I get on the console.I have tried to launch it a lot of times, same message. Thanks.
[2014-02-07 15:44:08 - david] Performing t.t.Splash activity launch
[2014-02-07 15:44:08 - david] Automatic Target Mode: using existing emulator 'emulator-5554' running compatible AVD 'slayer'
[2014-02-07 15:44:18 - david] Uploading david.apk onto device 'emulator-5554'
[2014-02-07 15:44:18 - david] Failed to install david.apk on device 'emulator-5554': Read-only file system
[2014-02-07 15:44:18 - david] com.android.ddmlib.SyncException: Read-only file system
[2014-02-07 15:44:18 - david] Launch canceled!
回答1:
Change your ADB connection time-out i think that is causing problem.
If you are using eclipse you can go to Window -> Preferences and then it is in DDMS under Android.
Window -> Preferences -> Android -> DDMS -> ADB Connection Timeout (ms)
By default it is 500ms change it to 10000ms.
For more information go here
回答2:
Got this off an Android forum where I asked the same question. Hope this helps somebody else.
On a terminal emulator on the phone:
mount -o rw,remount -t yaffs2 /dev/block/mtdblock3 /system
Then on the cmd prompt, do the adb push
回答3:
This same thing just happened to me because I already had an emulator running. Make sure you don't already have an emulator running.
来源：https://stackoverflow.com/questions/21629133/android-emulator-launch-failed