相关疑难解决方法(0)

我最近将Android SDK和Eclipse ADT插件更新到最新版本.现在,当我尝试运行预先存在的Android项目时,LogCat会显示一个ClassNotFoundException.

我试图创建一个新设备但问题仍然存在.

表现

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.myapp"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk
    android:minSdkVersion="8"
    android:targetSdkVersion="17" />

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

<application
    android:allowBackup="true"
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >
    <activity
        android:name="com.example.myapp.MainActivity"
        android:label="@string/app_name"
        android:windowSoftInputMode="stateHidden" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
</application>

logcat的

05-17 13:09:56.357: E/AndroidRuntime(969): FATAL EXCEPTION: main
05-17 13:09:56.357: E/AndroidRuntime(969): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.example.myapp/com.example.myapp.MainActivity}: java.lang.ClassNotFoundException: Didn't find class "com.example.myapp.MainActivity" on path: /data/app/com.example.myapp-1.apk
05-17 13:09:56.357: E/AndroidRuntime(969):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2106)
05-17 …