我最近在尝试将一个现有的项目导入到Eclipse中,但是遇到了一些困难,最终找到了解决方法。我已经导入了所有必要的库项目,并且它们都可以正常工作,但是还存在一个错误。
库项目“PortraitQR”旁边有一个红色的“x”标记,上面写着“无法解析目标'android-8'”。
我尝试编译应用程序,但是它崩溃了,以下是logcat文件:
07-16 18:24:14.296: E/AndroidRuntime(9673): FATAL EXCEPTION: main
07-16 18:24:14.296: E/AndroidRuntime(9673): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{si.dvanadva.evanturist/si.dvanadva.evanturist.MainActivity}: java.lang.ClassNotFoundException: Didn't find class "si.dvanadva.evanturist.MainActivity" on path: /data/app/si.dvanadva.evanturist-2.apk
07-16 18:24:14.296: E/AndroidRuntime(9673): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2106)
07-16 18:24:14.296: E/AndroidRuntime(9673): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230)
07-16 18:24:14.296: E/AndroidRuntime(9673): at android.app.ActivityThread.access$600(ActivityThread.java:141)
07-16 18:24:14.296: E/AndroidRuntime(9673): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234)
07-16 18:24:14.296: E/AndroidRuntime(9673): at android.os.Handler.dispatchMessage(Handler.java:99)
07-16 18:24:14.296: E/AndroidRuntime(9673): at android.os.Looper.loop(Looper.java:137)
07-16 18:24:14.296: E/AndroidRuntime(9673): at android.app.ActivityThread.main(ActivityThread.java:5041)
07-16 18:24:14.296: E/AndroidRuntime(9673): at java.lang.reflect.Method.invokeNative(Native Method)
07-16 18:24:14.296: E/AndroidRuntime(9673): at java.lang.reflect.Method.invoke(Method.java:511)
07-16 18:24:14.296: E/AndroidRuntime(9673): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
07-16 18:24:14.296: E/AndroidRuntime(9673): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
07-16 18:24:14.296: E/AndroidRuntime(9673): at dalvik.system.NativeStart.main(Native Method)
07-16 18:24:14.296: E/AndroidRuntime(9673): Caused by: java.lang.ClassNotFoundException: Didn't find class "si.dvanadva.evanturist.MainActivity" on path: /data/app/si.dvanadva.evanturist-2.apk
07-16 18:24:14.296: E/AndroidRuntime(9673): at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:65)
07-16 18:24:14.296: E/AndroidRuntime(9673): at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
07-16 18:24:14.296: E/AndroidRuntime(9673): at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
07-16 18:24:14.296: E/AndroidRuntime(9673): at android.app.Instrumentation.newActivity(Instrumentation.java:1054)
07-16 18:24:14.296: E/AndroidRuntime(9673): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2097)
07-16 18:24:14.296: E/AndroidRuntime(9673): ... 11 more
我做了一些关于如何修复Android-8解析目标错误的研究,但是我找不到任何方法来处理在导入库时立刻显示此错误的情况。通常人们在使用SDK管理器进行更新时会出现这种错误。