title: Android Error:error: linker command failed with exit code 1 (use -v to see invocation) build error
body: <p>I am getting the following error when I compile the Android project, what could be the cause of this error?</p>
  
  <p>"Error:error: linker command failed with exit code 1 (use -v to see invocation) "</p>
  
  <p>My Gradle</p>
  
  <pre><code>apply plugin: 'com.android.application'
  
  android {
      compileSdkVersion 25
      buildToolsVersion "25.0.2"
      defaultConfig {
          applicationId "facebook.f8demo"
          minSdkVersion 20
          targetSdkVersion 25
          versionCode 1
          versionName "1.0"
          testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
          externalNativeBuild {
              cmake {
                  cppFlags "-frtti -fexceptions -std=c++11"
              }
          }
          ndk {
              // Specifies the ABI configurations of your native
              // libraries Gradle should build and package with your APK.
              abiFilters  'armeabi-v7a'
          }
      }
      buildTypes {
          release {
              minifyEnabled false
              proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
          }
      }
      externalNativeBuild {
          cmake {
              path "CMakeLists.txt"
          }
      }
  
  }
  
  dependencies {
      compile fileTree(dir: 'libs', include: ['*.jar', '*.so'])
      androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
          exclude group: 'com.android.support', module: 'support-annotations'
      })
      compile 'com.android.support:appcompat-v7:25.1.1'
      compile 'com.android.support.constraint:constraint-layout:1.0.2'
      testCompile 'junit:junit:4.12'
  }
  </code></pre>
  
  <p>Source code of the project <a href="https://github.com/mesutpiskin/AICamera" rel="nofollow noreferrer">Caffe2AICamera</a></p>
  
  <p><a href="https://i.stack.imgur.com/9zRCp.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/9zRCp.png" alt="Android Error:error: linker command failed with exit code 1 (use -v to see invocation)"></a></p>