(Android) No Class Def Found Error for com.loopj.android.http.AsyncHttpClient

Question

I've added the following (http://loopj.com/android-async-http/) to my /libs folder and have also put it in the module settings as a library and ticked the export button. In the actual file there are no errors given that it can't find the class and when I do import com.loopj and so-forth it completes it for me and shows me the available options.

However, when I run it on my phone it gives the following errors:

12-02 23:00:08.943    8209-8209/mobi.vassilev.beam E/dalvikvm﹕ Could not find class   'com.loopj.android.http.AsyncHttpClient', referenced from method mobi.vassilev.beam.GoogleLoginActivity.requestAPIKeyFromOAuthToken
12-02 23:00:09.183    8209-8209/mobi.vassilev.beam E/﹕ file /data/data/com.nvidia.NvCPLSvc/files/driverlist.txt: not found!
12-02 23:00:10.453    8382-8382/? E/ObjectHelper﹕ Can't find method:setCompatibilityInfo
12-02 23:00:10.598    8209-8209/mobi.vassilev.beam E/AndroidRuntime﹕ FATAL EXCEPTION: main
    java.lang.NoClassDefFoundError: com.loopj.android.http.AsyncHttpClient
            at mobi.vassilev.beam.GoogleLoginActivity.requestAPIKeyFromOAuthToken(GoogleLoginActivity.java:118)
            at mobi.vassilev.beam.GoogleLoginActivity.access$200(GoogleLoginActivity.java:24)
            at mobi.vassilev.beam.GoogleLoginActivity$OnTokenAcquired.run(GoogleLoginActivity.java:105)
            at android.accounts.AccountManager$11.run(AccountManager.java:1335)
            at android.os.Handler.handleCallback(Handler.java:725)
            at android.os.Handler.dispatchMessage(Handler.java:92)
            at android.os.Looper.loop(Looper.java:158)
            at android.app.ActivityThread.main(ActivityThread.java:5751)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:511)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1083)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:850)
            at dalvik.system.NativeStart.main(Native Method)
12-02 23:00:10.633      513-548/? E/EmbeddedLogger﹕ App crashed! Process: mobi.vassilev.beam

and the extract of code (not complete obv as the URL is fake, but that shouldn't affect anything):

  private void requestAPIKeyFromOAuthToken(String token) {
        AsyncHttpClient client = new AsyncHttpClient();        // <-- this is line 118
        RequestParams params = new RequestParams("token", token);

        client.post("https://myrailsapp.com/api/v1/auth/verify", params, new AsyncHttpResponseHandler() {
            @Override
            public void onSuccess(String response) {
                Log.w("OAUTH", "Got API key from server: " + response);
                finish();
            }

            @Override
            public void onFailure(Throwable e) {
                Log.w("OAUTH", "Error getting API key");
                Toast.makeText(getApplicationContext(), R.string.connection_error_message, Toast.LENGTH_LONG).show();

                e.printStackTrace();
            }
        });
    }

Would anyone know a solution to this problem?

Thank you very much, Daniel

Which IDE what you using?

viplezer
– viplezer

2013-12-02 12:18:17 +00:00
Commented Dec 2, 2013 at 12:18 — viplezer
– viplezer, Commented Dec 2, 2013 at 12:18
Which api level you use...

Harshit Rathi
– Harshit Rathi

2013-12-02 12:18:50 +00:00
Commented Dec 2, 2013 at 12:18 — Harshit Rathi
– Harshit Rathi, Commented Dec 2, 2013 at 12:18
have u added the jar file into the build path?

Virag Brahme
– Virag Brahme

2013-12-02 12:21:42 +00:00
Commented Dec 2, 2013 at 12:21 — Virag Brahme
– Virag Brahme, Commented Dec 2, 2013 at 12:21
@coelho I am using android studio.

DVassilev
– DVassilev

2013-12-02 12:57:25 +00:00
Commented Dec 2, 2013 at 12:57 — DVassilev
– DVassilev, Commented Dec 2, 2013 at 12:57
@harshit-rathi target API is 17 and min is 11.

DVassilev
– DVassilev

2013-12-02 12:58:12 +00:00
Commented Dec 2, 2013 at 12:58 — DVassilev
– DVassilev, Commented Dec 2, 2013 at 12:58

Community · Accepted Answer · 2017-05-23 10:26:34Z

1

In Android Studio, you have to add your jar into the lib folder, add the dependency into the build.gradle file and call gradlew clean from console. The gradlew is in your project directory.

Check this thread for more details: Android Studio: Add jar as library?

edited May 23, 2017 at 10:26

CommunityBot

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answered Dec 2, 2013 at 13:13

viplezer

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2 Comments

DVassilev Over a year ago

That did it! I used Build -> Rebuild Project to emulate gradlew clean and it worked like a charm! Thank you very much

Zin Win Htet Over a year ago

what about in Eclipse?

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