twitter4j => AndroidRuntime(446): java.lang.NoClassDefFoundError: twitter4j.http.AccessToken
Solution 1
You need to change your Folder name from lib
to libs
as you have updated ADT 17.
Checkout this Article for in detail information on this topic.
Solution 2
In case someone is using ADT 18, I did not have a lib folder at all, I was using Project, Properties, Java Build Path, Libraries tab exclusively. To resolve this issue, I created a libs folder within my project, copied my external jars to this folder, and then removed the references in the Libraries tab. The project rebuilt and worked!
someone_ smiley
Updated on June 11, 2022Comments
-
someone_ smiley almost 2 years
I am trying to use twitter4j for my app to connect and post to twitter. I am following this tutorial. I have downloaded the example project from here and try to run it on
android 2.3.3
. I am sure that i have modifiedConstants.java
file correctly according to my twitter developer website. InTwitterUtils.java
i have enterOAUTH_TOKEN
andOAUTH_TOKEN_SECRET
also. but after running it, i got following error messages :> E/dalvikvm(374): Could not find class 'twitter4j.http.AccessToken', referenced from method com.ecs.android.sample.twitter.TwitterUtils.isAuthenticated >W/dalvikvm(374): VFY: unable to resolve new-instance 67 (Ltwitter4j/http/AccessToken;) in Lcom/ecs/android/sample/twitter/TwitterUtils; >D/dalvikvm(374): VFY: replacing opcode 0x22 at 0x0010 >D/dalvikvm(374): VFY: dead code 0x0012-002f in Lcom/ecs/android/sample/twitter/TwitterUtils;.isAuthenticated (Landroid/content/SharedPreferences;)Z >E/dalvikvm(374): Could not find class 'twitter4j.http.AccessToken', referenced from method com.ecs.android.sample.twitter.TwitterUtils.sendTweet >W/dalvikvm(374): VFY: unable to resolve new-instance 67 (Ltwitter4j/http/AccessToken;) in Lcom/ecs/android/sample/twitter/TwitterUtils; >D/dalvikvm(374): VFY: replacing opcode 0x22 at 0x0010 >D/dalvikvm(374): VFY: dead code 0x0012-002b in Lcom/ecs/android/sample/twitter/TwitterUtils;.sendTweet (Landroid/content/SharedPreferences;Ljava/lang/String;)V >D/AndroidRuntime(374): Shutting down VM >W/dalvikvm(374): threadid=1: thread exiting with uncaught exception (group=0x40015560) >E/AndroidRuntime(374): FATAL EXCEPTION: main >E/AndroidRuntime(374): java.lang.NoClassDefFoundError: twitter4j.http.AccessToken >E/AndroidRuntime(374): at com.ecs.android.sample.twitter.TwitterUtils.isAuthenticated(TwitterUtils.java:18) >E/AndroidRuntime(374): at com.ecs.android.sample.twitter.AndroidTwitterSample.updateLoginStatus(AndroidTwitterSample.java:72) >E/AndroidRuntime(374): at com.ecs.android.sample.twitter.AndroidTwitterSample.onResume(AndroidTwitterSample.java:68) >E/AndroidRuntime(374): at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1150) >E/AndroidRuntime(374): at android.app.Activity.performResume(Activity.java:3832) >E/AndroidRuntime(374): at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2110) >E/AndroidRuntime(374): at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:2135) >E/AndroidRuntime(374): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1668) >E/AndroidRuntime(374): at android.app.ActivityThread.access$1500(ActivityThread.java:117) >E/AndroidRuntime(374): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931) >E/AndroidRuntime(374): at android.os.Handler.dispatchMessage(Handler.java:99) >E/AndroidRuntime(374): at android.os.Looper.loop(Looper.java:130) >E/AndroidRuntime(374): at android.app.ActivityThread.main(ActivityThread.java:3683) >E/AndroidRuntime(374): at java.lang.reflect.Method.invokeNative(Native Method) >E/AndroidRuntime(374): at java.lang.reflect.Method.invoke(Method.java:507) >E/AndroidRuntime(374): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839) >E/AndroidRuntime(374): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597) >E/AndroidRuntime(374): at dalvik.system.NativeStart.main(Native Method)
am not sure if i am wrong, in Constant.java, i haven't change anything in
public static final String REQUEST_URL = "https://api.twitter.com/oauth/request_token"; public static final String ACCESS_URL = "https://api.twitter.com/oauth/access_token"; public static final String AUTHORIZE_URL = "https://api.twitter.com/oauth/authorize"; public static final String OAUTH_CALLBACK_SCHEME = "x-oauthflow-twitter"; public static final String OAUTH_CALLBACK_HOST = "callback"; public static final String OAUTH_CALLBACK_URL = OAUTH_CALLBACK_SCHEME + "://" + OAUTH_CALLBACK_HOST;
I have tried changing
"callback"
with"http://www.MyWebsite.com"
Please advice how can I correct these problems.