Question

android程序为什么运行不了

[2012-10-18 10:35:49 - Copy (2) of wsm] ------------------------------
[2012-10-18 10:35:49 - Copy (2) of wsm] Android Launch!
[2012-10-18 10:35:49 - Copy (2) of wsm] adb is running normally.
[2012-10-18 10:35:49 - Copy (2) of wsm] Performing com.example.android.apis.ApiDemos activity launch
[2012-10-18 10:35:49 - Copy (2) of wsm] Automatic Target Mode: using existing emulator 'emulator-5554' running compatible AVD 'wewq'
[2012-10-18 10:35:49 - Copy (2) of wsm] WARNING: Application does not specify an API level requirement!
[2012-10-18 10:35:49 - Copy (2) of wsm] Device API version is 8 (Android 2.2)
[2012-10-18 10:35:49 - Copy (2) of wsm] Uploading Copy (2) of wsm.apk onto device 'emulator-5554'
[2012-10-18 10:37:15 - Copy (2) of wsm] Installing Copy (2) of wsm.apk...
[2012-10-18 10:37:26 - Copy (2) of wsm] Re-installation failed due to different application signatures.
[2012-10-18 10:37:26 - Copy (2) of wsm] You must perform a full uninstall of the application. WARNING: This will remove the application data!
[2012-10-18 10:37:26 - Copy (2) of wsm] Please execute 'adb uninstall com.example.android.apis' in a shell.
[2012-10-18 10:37:27 - Copy (2) of wsm] Launch canceled!

Answer 1

android程序运行不了有以下原因：
1、打开的程序和窗口过多导致的，可以关闭部分窗口之后再打开运行。
2、程序运行的数据和缓存较多，可以在应用程序中找到这个软件并清除数据和缓存。
3、运行数据出错或者跟其他程序造成冲突，可以关机重启之后再运行。

Answer 2

WARNING: Application does not specify an API level requirement!

说你的应用不符合api要求。 接着说You must perform a full uninstall of the application. WARNING: This will remove the application data!

你的程序没有卸载完全。。。这样的话。你试着新建一个虚拟机，在这个上面重新跑一下试一试

追问

试过了，可还是不行

追答

首先根据提示
[2012-10-18 10:37:26 - Copy (2) of wsm] Please execute 'adb uninstall com.example.android.apis' in a shell.

这个是叫你在在命令行中执行一下 'adb uninstall com.example.android.apis' 。。。试一试
然后钥匙提示的不起作用的话 ，你的源码多么？不是很多的话 你贴上来。。。

Answer 3

是不是把Launch隐藏了？

<category android:name="android.intent.category.LAUNCHER" />
在AndroidManifest.xml中一定要写~~ 如果不写的话程序就不会有图标 也不会有入口