错误设备上未安装Android应用程序？

Question

I have made a Android app and when I finished it and tested it through eclipse and Android SDK it works fine.. But when I test it on my android phone and install it with an app called AppInstaller and run it then it says "app not installed on device".. WTF? How is that possible when its in the menu and I can tap on it?

This is my code. (And yes I did X out the website on purpose)

MANIFEST.XML:

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="XXXXXXX"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk android:minSdkVersion="10" />
<uses-permission android:name="android.permission.INTERNET" />

<application
    android:icon="@drawable/new_launcher"
    android:label="@string/app_name"
    android:permission="android.permission.INTERNET"
    android:description="@string/app_description">

    <activity
        android:name="XXXXX"
        android:label="@string/app_name" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
</application>
</manifest>

Answer 1

I've recently had this problem with an app that I was writing to experiment with widgets.

The problem that I had turned out to be that I had exported the app unsigned, which has worked previously. It seems that you can't install an unsigned app that contains a widget. Signing the app when exporting it allowed it to be installed ok.

Answer 2

You've set the following permission twice:

android:permission="android.permission.INTERNET"

Getting rid of one of them should clear it up.

Answer 3

确保您使用的是Java 6，因为Java 7构建的软件包至少存在问题。

Answer 4

"app not installed on device" is a message I've gotten when the SD card is mounted (and unavailable), or when trying to tap a shortcut on the desktop to an app that's been removed in some way. If this is the problem I'd guess your case would be the former.

Answer 5

Either your phone Api version is less than 10. ie below OS 2.3

or, if you have previously installed same application on that phone. Try uninstalling that before installing new one.