Question

我正在开发一个android项目。添加活动后，我收到此错误。我试图找到最近4个小时的错误。你能帮我么？如果这个问题没有满足本网站的要求，请告诉我，我会根据您的建议编辑问题。但是贾兹，请帮助我。我遇到了很大麻烦。

 12-15 12:54:45.578: E/Trace(1857): error opening trace file: No such file or directory (2)
    12-15 12:54:45.718: D/AndroidRuntime(1857): Shutting down VM
    12-15 12:54:45.759: W/dalvikvm(1857): threadid=1: thread exiting with uncaught exception (group=0x40a71930)
    12-15 12:54:45.798: E/AndroidRuntime(1857): FATAL EXCEPTION: main
    12-15 12:54:45.798: E/AndroidRuntime(1857): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.androidhive.jsonparsing/com.androidhive.jsonparsing.Search_medicine}: java.lang.ClassNotFoundException: Didn't find class "com.androidhive.jsonparsing.Search_medicine" on path: /data/app/com.androidhive.jsonparsing-1.apk
    12-15 12:54:45.798: E/AndroidRuntime(1857):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2106)
    12-15 12:54:45.798: E/AndroidRuntime(1857):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
    12-15 12:54:45.798: E/AndroidRuntime(1857):     at android.app.ActivityThread.access$600(ActivityThread.java:141)
    12-15 12:54:45.798: E/AndroidRuntime(1857):     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
    12-15 12:54:45.798: E/AndroidRuntime(1857):     at android.os.Handler.dispatchMessage(Handler.java:99)
    12-15 12:54:45.798: E/AndroidRuntime(1857):     at android.os.Looper.loop(Looper.java:137)
    12-15 12:54:45.798: E/AndroidRuntime(1857):     at android.app.ActivityThread.main(ActivityThread.java:5041)
    12-15 12:54:45.798: E/AndroidRuntime(1857):     at java.lang.reflect.Method.invokeNative(Native Method)
    12-15 12:54:45.798: E/AndroidRuntime(1857):     at java.lang.reflect.Method.invoke(Method.java:511)
    12-15 12:54:45.798: E/AndroidRuntime(1857):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
    12-15 12:54:45.798: E/AndroidRuntime(1857):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
    12-15 12:54:45.798: E/AndroidRuntime(1857):     at dalvik.system.NativeStart.main(Native Method)
    12-15 12:54:45.798: E/AndroidRuntime(1857): Caused by: java.lang.ClassNotFoundException: Didn't find class "com.androidhive.jsonparsing.Search_medicine" on path: /data/app/com.androidhive.jsonparsing-1.apk
    12-15 12:54:45.798: E/AndroidRuntime(1857):     at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:65)
    12-15 12:54:45.798: E/AndroidRuntime(1857):     at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
    12-15 12:54:45.798: E/AndroidRuntime(1857):     at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
    12-15 12:54:45.798: E/AndroidRuntime(1857):     at android.app.Instrumentation.newActivity(Instrumentation.java:1054)
    12-15 12:54:45.798: E/AndroidRuntime(1857):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2097)
    12-15 12:54:45.798: E/AndroidRuntime(1857):     ... 11 more
    12-15 12:54:50.277: I/Process(1857): Sending signal. PID: 1857 SIG: 9

这是我的XML文件：

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

    <uses-sdk android:minSdkVersion="8" />
    <uses-permission android:name="android.permission.INTERNET" />

    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name" >
        <activity
            android:label="@string/app_name"
            android:name="com.androidhive.jsonparsing.Search_medicine"
            android:theme="@android:style/Theme.NoTitleBar.Fullscreen" >
            <intent-filter >
                <action android:name="android.intent.action.MAIN" />

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

        <!-- Single List Item View -->
        <activity
            android:label="Single Menu Item"  
            android:name="com.androidhive.jsonparsing.Info_of_medicine"
            android:theme="@android:style/Theme.NoTitleBar.Fullscreen" >

            <intent-filter >
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>

        </activity>

        <activity
            android:label="Single Menu Item"  
            android:name="com.androidhive.jsonparsing.Take_medicine"
            android:theme="@android:style/Theme.NoTitleBar.Fullscreen" >
        <intent-filter >
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.DEFAULT" />
            </intent-filter>

        </activity>

    </application>


</manifest>

Answer 1

如果没有看到完整的源代码，就无法找到它。但您可以尝试以下步骤，这可能会解决您的问题。

清理您的项目。
如果您在引用已使用的任何第三方库时出错，请检查构建路径。虽然，看到你的清单，似乎异常来自你自己在项目中的书面类。清理并构建项目。
重启Eclipse。

希望它有所帮助。

java.lang.ClassNotFoundException：没找到类“com.androidhive.jsonparsing.Search_medicine”

1 个答案: