Android ClassNotFoundException when I run googlecast sample

Question

10-24 22:37:47.926: E/Trace(31760): error opening trace file: No such file or directory (2)
10-24 21:50:17.726: E/AndroidRuntime(25669): FATAL EXCEPTION: main
10-24 21:50:17.726: E/AndroidRuntime(25669): java.lang.RuntimeException: Unable to       instantiate activity     ComponentInfo{com.example.castsample/com.example.castsample.CastSampleActivity}: java.lang.ClassNotFoundException: com.example.castsample.CastSampleActivity
10-24 21:50:17.726: E/AndroidRuntime(25669):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1983)
10-24 21:50:17.726: E/AndroidRuntime(25669):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084)
10-24 21:50:17.726: E/AndroidRuntime(25669):    at android.app.ActivityThread.access$600(ActivityThread.java:130)
10-24 21:50:17.726: E/AndroidRuntime(25669):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195)
10-24 21:50:17.726: E/AndroidRuntime(25669):    at android.os.Handler.dispatchMessage(Handler.java:99)
10-24 21:50:17.726: E/AndroidRuntime(25669):    at android.os.Looper.loop(Looper.java:137)
10-24 21:50:17.726: E/AndroidRuntime(25669):    at android.app.ActivityThread.main(ActivityThread.java:4745)
10-24 21:50:17.726: E/AndroidRuntime(25669):    at java.lang.reflect.Method.invokeNative(Native Method)
10-24 21:50:17.726: E/AndroidRuntime(25669):    at java.lang.reflect.Method.invoke(Method.java:511)
10-24 21:50:17.726: E/AndroidRuntime(25669):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786)
10-24 21:50:17.726: E/AndroidRuntime(25669):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
10-24 21:50:17.726: E/AndroidRuntime(25669):    at dalvik.system.NativeStart.main(Native Method)
10-24 21:50:17.726: E/AndroidRuntime(25669): Caused by: java.lang.ClassNotFoundException: com.example.castsample.CastSampleActivity
10-24 21:50:17.726: E/AndroidRuntime(25669):    at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:61)
10-24 21:50:17.726: E/AndroidRuntime(25669):    at java.lang.ClassLoader.loadClass(ClassLoader.java:501)
10-24 21:50:17.726: E/AndroidRuntime(25669):    at java.lang.ClassLoader.loadClass(ClassLoader.java:461)
10-24 21:50:17.726: E/AndroidRuntime(25669):    at android.app.Instrumentation.newActivity(Instrumentation.java:1053)
10-24 21:50:17.726: E/AndroidRuntime(25669):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1974)
10-24 21:50:17.726: E/AndroidRuntime(25669):    ... 11 more    </code>

This is the error what I encountered when running google-cast sample. And I don't modify any thing in Manifest.
Any helps will be appreciated.

Check this : http://stackoverflow.com/questions/16744963/the-code-has-stopped-working-java-lang-classnotfoundexception-in-loader-dalvik and http://stackoverflow.com/questions/16596969/libraries-do-not-get-added-to-apk-anymore-after-upgrade-to-adt-22 — Siddharth_Vyas, Oct 25 '13 at 03:26
I have checked all the Android Dependencies and the support libraries,it still have the error. — henry, Oct 25 '13 at 06:55

score 0 · Answer 1 · answered Oct 25 '13 at 02:13

0

put your libraries/jar inside libs folder. if it is still named lib, rename it to libs.

answered Oct 25 '13 at 02:13

hepizoj

243
4
9

I had added sup-v4.sup-v7-appcompat,sup-v7-mediarouter to libs.It may be not the problem. Thank you all the same. – henry Oct 25 '13 at 02:24

score 0 · Answer 2 · edited May 23 '17 at 12:28

0

Try the following steps in Android project:

Click mouse right button on the project in "Project Explorer", then select "Properties"
Select "Java Build Path" in the list at left.
Make click on "Order and Export" tab.
Mark the two checkboxes for "Android Private Libraries" and "Android Dependencies", respectively, then click OK button.
Clean project(s) and run.

If nothing works, you might want to try some solutions from this page. Here is the most voted answer: https://stackoverflow.com/a/11776806/827110

edited May 23 '17 at 12:28

Community

1
1

answered Oct 25 '13 at 02:33

Amulya Khare

7,718
2
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I have updated my answer. Seems like this problem is fairly common and most people do not know how to resolve it. – Amulya Khare Oct 25 '13 at 02:41
I think this not the root reason of ClassNotFoundException issue.This may be the device version is different with the project version caused. – henry Oct 25 '13 at 02:58

score 0 · Accepted Answer · answered Oct 29 '13 at 02:56

0

Putting v7-appcompat.jar, v7-mediarouter.jar doesn't solve the problem. It will get error in run time.
You must import 2 above project as library project. Appcompat is dependency project of Mediarouter project. Then add 2 above project as dependency project of your project.

answered Oct 29 '13 at 02:56

Huy Duong Tu

7,798
5
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You import appcompat and mediarouter project in android-sdk/extra/android directory as library project. Then Select "Java Build Path" in "Properties" of your project. Add 2 above lib project as dependency project of yours. – Huy Duong Tu Oct 29 '13 at 16:05

Android ClassNotFoundException when I run googlecast sample

3 Answers3