java.lang.RuntimeException: Unable to instantiate activity

问题

I've tried all possible solutions to this problem, but nothing seems to work... The problem occured, when i've updated my SDK Tools version from r16 to r19 and SDK Platform-tools to r11. I have all classes included to the manifest, and everything worked before this update. do you have an idea how to fix this problem? (i tried a lot of solutions from this site and others...)

Here is my Error log:

05-17 23:29:10.888: E/AndroidRuntime(20945): FATAL EXCEPTION: main
05-17 23:29:10.888: E/AndroidRuntime(20945): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.bugfullabs.depress/com.bugfullabs.depress.Splash}: java.lang.ClassNotFoundException: com.bugfullabs.depress.Splash
05-17 23:29:10.888: E/AndroidRuntime(20945):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2110)
05-17 23:29:10.888: E/AndroidRuntime(20945):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2229)
05-17 23:29:10.888: E/AndroidRuntime(20945):    at android.app.ActivityThread.access$600(ActivityThread.java:139)
05-17 23:29:10.888: E/AndroidRuntime(20945):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1261)
05-17 23:29:10.888: E/AndroidRuntime(20945):    at android.os.Handler.dispatchMessage(Handler.java:99)
05-17 23:29:10.888: E/AndroidRuntime(20945):    at android.os.Looper.loop(Looper.java:154)
05-17 23:29:10.888: E/AndroidRuntime(20945):    at android.app.ActivityThread.main(ActivityThread.java:4944)
05-17 23:29:10.888: E/AndroidRuntime(20945):    at java.lang.reflect.Method.invokeNative(Native Method)
05-17 23:29:10.888: E/AndroidRuntime(20945):    at java.lang.reflect.Method.invoke(Method.java:511)
05-17 23:29:10.888: E/AndroidRuntime(20945):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
05-17 23:29:10.888: E/AndroidRuntime(20945):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
05-17 23:29:10.888: E/AndroidRuntime(20945):    at dalvik.system.NativeStart.main(Native Method)
05-17 23:29:10.888: E/AndroidRuntime(20945): Caused by: java.lang.ClassNotFoundException: com.bugfullabs.depress.Splash
05-17 23:29:10.888: E/AndroidRuntime(20945):    at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)
05-17 23:29:10.888: E/AndroidRuntime(20945):    at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
05-17 23:29:10.888: E/AndroidRuntime(20945):    at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
05-17 23:29:10.888: E/AndroidRuntime(20945):    at android.app.Instrumentation.newActivity(Instrumentation.java:1039)
05-17 23:29:10.888: E/AndroidRuntime(20945):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2101)
05-17 23:29:10.888: E/AndroidRuntime(20945):    ... 11 more

Here is my AndroidManifest:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.bugfullabs.depress"
    android:versionCode="2"
    android:versionName="1.0" >

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

    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name" >
        <activity
            android:name=".Splash"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity
            android:name=".DEpressActivity"
            android:label="@string/app_name" >
        </activity>
        <activity
            android:name=".SettingsMenu"
            android:label="@string/app_name" >
        </activity>
        <activity
            android:name=".Credits"
            android:label="@string/app_name" >
        </activity>
        <activity
            android:name=".game.LevelSelect"
            android:label="@string/app_name" >
        </activity>
        <activity
            android:name=".game.GameActivity"
            android:label="@string/app_name" >
        </activity>
        <activity
            android:name=".game.FinishScreen"
            android:label="@string/app_name" >
        </activity>
    </application>

</manifest>

回答1:

It can't find the class: com.bugfullabs.depress.Splash. First thing is to make sure there's not a typo in the package name. (seems like it should be bugfullaps)

Next, is the Splash class contained in a library? If so, check your Java Build Path configuration and make sure under the Order and Export tab that your library file is checked so that it's exported with the application.

EDIT: Just remembered, if you have a lib directory, rename it to libs. That's one of the things that changed from the version you were using. Good luck!

来源：https://stackoverflow.com/questions/10643970/java-lang-runtimeexception-unable-to-instantiate-activity

标签

android

manifest

crash