java.lang.NoClassDefFoundError: org.apache.http.params.SyncBasicHttpParams

Question

When i debug my app it is working fine but when i try to export my apk and install it i am getting this issue:

java.lang.NoClassDefFoundError: org.apache.http.params.SyncBasicHttpParams
at aig.a(Unknown Source)
at ahy.q(Unknown Source)
at ahy.d(Unknown Source)
at ahy.r(Unknown Source)
at ahy.c(Unknown Source)
at ahy.a(Unknown Source)
at ahy.a(Unknown Source)
at ahy.execute(Unknown Source)
at com.application.Login.a(Unknown Source)
at com.application.Login.onCreate(Unknown Source)
at android.app.Activity.performCreate(Activity.java:5115)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1083)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2162)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2248)
at android.app.ActivityThread.access$600(ActivityThread.java:145)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1246)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5095)
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:898)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:665)
at dalvik.system.NativeStart.main(Native Method)

I am using proguard,

I have added reference libs also like this:

-libraryjars /libs/org.apache.httpcomponents.httpclient_4.2.1.jar
-libraryjars /libs/signpost-commonshttp4-1.2.1.1.jar
-libraryjars /libs/signpost-core-1.2.1.1.jar
-libraryjars /libs/signpost-jetty6-1.2.1.1.jar
-libraryjars /libs/twitter4j-core-2.1.6.jar

any idea..@thanks

Answer 1

There is no HttpCore in your libs.

Please import HttpCore

This link is HttpCore 4.1, You can search HttpCore 4.2 or 4.3 if you want.

In the future, when you import a library please ensure that you import the relevant library