diff --git a/lib_network/.gitignore b/lib_network/.gitignore
deleted file mode 100644
index 796b96d1c..000000000
--- a/lib_network/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-/build
diff --git a/lib_network/build.gradle b/lib_network/build.gradle
deleted file mode 100644
index ed3b630c5..000000000
--- a/lib_network/build.gradle
+++ /dev/null
@@ -1,37 +0,0 @@
-plugins {
-    id 'com.android.library'
-    id 'kotlin-android'
-}
-
-android {
-    compileSdkVersion project.compileSdkVersion
-
-    defaultConfig {
-        minSdkVersion project.minSdkVersion
-        targetSdkVersion project.targetSdkVersion
-        versionCode 1
-        versionName "1.0"
-
-        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
-
-    }
-
-    buildTypes {
-        release {
-            minifyEnabled true
-            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
-        }
-    }
-    compileOptions {
-        sourceCompatibility = 1.8
-        targetCompatibility = 1.8
-    }
-
-}
-
-dependencies {
-    testImplementation 'junit:junit:4.12'
-    androidTestImplementation 'androidx.test.ext:junit:1.1.1'
-
-    implementation 'com.squareup.retrofit2:retrofit:2.3.0'
-}
diff --git a/lib_network/proguard-rules.pro b/lib_network/proguard-rules.pro
deleted file mode 100644
index f1b424510..000000000
--- a/lib_network/proguard-rules.pro
+++ /dev/null
@@ -1,21 +0,0 @@
-# Add project specific ProGuard rules here.
-# You can control the set of applied configuration files using the
-# proguardFiles setting in build.gradle.
-#
-# For more details, see
-#   http://developer.android.com/guide/developing/tools/proguard.html
-
-# If your project uses WebView with JS, uncomment the following
-# and specify the fully qualified class name to the JavaScript interface
-# class:
-#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
-#   public *;
-#}
-
-# Uncomment this to preserve the line number information for
-# debugging stack traces.
-#-keepattributes SourceFile,LineNumberTable
-
-# If you keep the line number information, uncomment this to
-# hide the original source file name.
-#-renamesourcefileattribute SourceFile
diff --git a/lib_network/src/main/AndroidManifest.xml b/lib_network/src/main/AndroidManifest.xml
deleted file mode 100644
index f180141e4..000000000
--- a/lib_network/src/main/AndroidManifest.xml
+++ /dev/null
@@ -1,5 +0,0 @@
-<manifest
-    package="gov.anzong.androidnga.http">
-
-    <application/>
-</manifest>
diff --git a/lib_network/src/test/java/gov/anzong/androidnga/http/ExampleUnitTest.java b/lib_network/src/test/java/gov/anzong/androidnga/http/ExampleUnitTest.java
deleted file mode 100644
index 316e6a067..000000000
--- a/lib_network/src/test/java/gov/anzong/androidnga/http/ExampleUnitTest.java
+++ /dev/null
@@ -1,17 +0,0 @@
-package gov.anzong.androidnga.http;
-
-import org.junit.Test;
-
-import static org.junit.Assert.*;
-
-/**
- * Example local unit test, which will execute on the development machine (host).
- *
- * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
- */
-public class ExampleUnitTest {
-    @Test
-    public void addition_isCorrect() {
-        assertEquals(4, 2 + 2);
-    }
-}
\ No newline at end of file
diff --git a/nga_phone_base_3.0/build.gradle b/nga_phone_base_3.0/build.gradle
index 1c1f3a60c..fdbd70379 100644
--- a/nga_phone_base_3.0/build.gradle
+++ b/nga_phone_base_3.0/build.gradle
@@ -134,7 +134,6 @@ dependencies {
     implementation project(':lib_common')
     implementation project(':lib_cloud')
     implementation project(':lib_core')
-    implementation project(":lib_network")
 
     // database
     implementation "androidx.room:room-runtime:$room_version"
diff --git a/lib_network/src/main/java/gov/anzong/androidnga/http/OnHttpCallBack.java b/nga_phone_base_3.0/src/main/java/gov/anzong/androidnga/http/OnHttpCallBack.java
similarity index 100%
rename from lib_network/src/main/java/gov/anzong/androidnga/http/OnHttpCallBack.java
rename to nga_phone_base_3.0/src/main/java/gov/anzong/androidnga/http/OnHttpCallBack.java
diff --git a/settings.gradle b/settings.gradle
index 0f25a2f63..8a77b6287 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -1,4 +1,3 @@
 include ':lib_cloud', ':lib_common'
 include ':nga_phone_base_3.0'
 include ':lib_core'
-include ':lib_network'