With emulator errors when trying to start default activity in android studio

Question

// I'm currently trying to start the defaul map provided in android // studio. I added the API key to the xml file and start using the AVD // device by default and get the following error (says that my application stops working in the emulator)

// logcat:

01-03 19:13:51.647 2399-2399/com.example.user.maptest I/art: Not late-enabling -Xcheck:jni (already on) 01-03 19:13:51.671 2399-2399/com.example.user.maptest W/System: ClassLoader referenced unknown path: /data/app/com.example.user.maptest-2/lib/x86 01-03 19:13:51.675 2399-2399/com.example.user.maptest I/GMPM: App measurement is starting up, version: 8487 01-03 19:13:51.675 2399-2399/com.example.user.maptest I/GMPM: To enable debug logging run: adb shell setprop log.tag.GMPM VERBOSE 01-03 19:13:51.758 2399-2399/com.example.user.maptest I/zzad: Making Creator dynamically 01-03 19:13:51.762 2399-2399/com.example.user.maptest W/System: ClassLoader referenced unknown path: /system/priv-app/PrebuiltGmsCore/lib/x86 01-03 19:13:51.830 2399-2399/com.example.user.maptest D/ChimeraCfgMgr: Reading stored module config 01-03 19:13:51.832 2399-2399/com.example.user.maptest D/ChimeraCfgMgr: Loading module com.google.android.gms.maps from APK /data/user/0/com.google.android.gms/app_chimera/chimera-module-root/module-a3e4fba11e705727c59ff3116ef21fa4834b9f56/MapsModule.apk 01-03 19:13:51.832 2399-2399/com.example.user.maptest D/ChimeraModuleLdr: Loading module APK /data/user/0/com.google.android.gms/app_chimera/chimera-module-root/module-a3e4fba11e705727c59ff3116ef21fa4834b9f56/MapsModule.apk 01-03 19:13:51.864 2399-2399/com.example.user.maptest D/ChimeraFileApk: Primary ABI of requesting process is x86 01-03 19:13:51.864 2399-2399/com.example.user.maptest D/ChimeraFileApk: Classloading successful. Optimized code found. 01-03 19:13:51.865 2399-2399/com.example.user.maptest W/System: ClassLoader referenced unknown path: /data/user/0/com.google.android.gms/app_chimera/chimera-module-root/module-a3e4fba11e705727c59ff3116ef21fa4834b9f56/native-libs/x86 01-03 19:13:51.953 2399-2399/com.example.user.maptest I/Google Maps Android API: Google Play services client version: 8487000 01-03 19:13:51.970 2399-2399/com.example.user.maptest I/Google Maps Android API: Google Play services package version: 8489470 01-03 19:13:52.122 2399-2399/com.example.user.maptest W/ContextImpl: Failed to ensure /sdcard/Android/data/com.example.user.maptest/cache: java.lang.SecurityException: Invalid mkdirs path: /storage/self/primary/Android/data/com.example.user.maptest/cache 01-03 19:13:52.124 2399-2399/com.example.user.maptest D/AndroidRuntime: Shutting down VM 01-03 19:13:52.124 2399-2399/com.example.user.maptest E/AndroidRuntime: FATAL EXCEPTION: main Process: com.example.user.maptest, PID: 2399 java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.user.maptest/com.example.user.maptest.MapsActivity}: android.view.InflateException: Binary XML file line #1: Binary XML file line #1: Error inflating class fragment at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2416) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) at android.app.ActivityThread.-wrap11(ActivityThread.java) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:148) at android.app.ActivityThread.main(ActivityThread.java:5417) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) Caused by: android.view.InflateException: Binary XML file line #1: Binary XML file line #1: Error inflating class fragment at android.view.LayoutInflater.inflate(LayoutInflater.java:539) at android.view.LayoutInflater.inflate(LayoutInflater.java:423) at android.view.LayoutInflater.inflate(LayoutInflater.java:374) at com.android.internal.policy.PhoneWindow.setContentView(PhoneWindow.java:393) at android.app.Activity.setContentView(Activity.java:2166) at com.example.user.maptest.MapsActivity.onCreate(MapsActivity.java:20) at android.app.Activity.performCreate(Activity.java:6237) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) at android.app.ActivityThread.-wrap11(ActivityThread.java) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:148) at android.app.ActivityThread.main(ActivityThread.java:5417) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) Caused by: android.view.InflateException: Binary XML file line #1: Error inflating class fragment at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:782) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:704) at android.view.LayoutInflater.inflate(LayoutInflater.java:492) at android.view.LayoutInflater.inflate(LayoutInflater.java:423) at android.view.LayoutInflater.inflate(LayoutInflater.java:374) at com.android.internal.policy.PhoneWindow.setContentView(PhoneWindow.java:393) at android.app.Activity.setContentView(Activity.java:2166) at com.example.user.maptest.MapsActivity.onCreate(MapsActivity.java:20) at android.app.Activity.performCreate(Activity.java:6237) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) at android.app.ActivityThread.-wrap11(ActivityThread.java) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:148) at android.app.ActivityThread.main(ActivityThread.java:5417) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'boolean java.io.File.mkdir()' on a null object reference at com.google.maps.api.android.lib6.gmm6.m.ad.a(Unknown Source) at com.google.maps.api.android.lib6.gmm6.cha(Unknown Source) at com.google.maps.api.android.lib6.gmm6.c.ao.a(Unknown Source) at com.google.maps.api.android.lib6.e.bd.a(Unknown Source) at com.google.maps.api.android.lib6.e.ev.a(Unknown Source) at com.google.maps.api.android.lib6.eza(Unknown Source) at com.google.maps.api.android.lib6.eya(Unknown Source) at com.google.android.gms.maps.internal.u.onTransact(SourceFile:107) at android.os.Binder.transact(Binder.java:387) at com.google.android.gms.maps.internal.IMapFragmentDelegate$zza$zza.onCreateView(Unknown Source) at com.google.android.gms.maps.SupportMapFragment$zza.onCreateView(Unknown Source) at com.google.android.gms.dynamic.zza$4.zzb(Unknown Source) at com.google.android.gms.dynamic.zza.zza(Unknown Source) at com.google.android.gms.dynamic.zza.onCreateView(Unknown Source) at com.google.android.gms.maps.SupportMapFragment.onCreateView(Unknown Source) at android.support.v4.app.Fragment.performCreateView(Fragment.java:1962) at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1036) at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1226) at android.support.v4.app.FragmentManagerImpl.addFragment(FragmentManager.java:1328) at android.support.v4.app.FragmentManagerImpl.onCreateView(FragmentManager.java:2284) at android.support.v4.app.FragmentController.onCreateView(FragmentController.java:111) at android.support.v4.app.FragmentActivity.dispatchFragmentsOnCreateView(FragmentActivity.java:314) at android.support.v4.app.BaseFragmentActivityHoneycomb.onCreateView(BaseFragmentActivityHoneycomb.java:31) at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:79) at android.view.LayoutInflater.createViewFromTag(Layout 

// AndroidManfest:

  <!-- The ACCESS_COARSE/FINE_LOCATION permissions are not required to use Google Maps Android API v2, but you must specify either coarse or fine location permissions for the 'MyLocation' functionality. --> <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /> <uses-permission android:name="android.permission.INTERNET" /> <application android:allowBackup="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:supportsRtl="true" android:theme="@style/AppTheme"> <!-- The API key for Google Maps-based APIs is defined as a string resource. (See the file "res/values/google_maps_api.xml"). Note that the API key is linked to the encryption key used to sign the APK. You need a different API key for each encryption key, including the release key that is used to sign the APK for publishing. You can define the keys for the debug and release targets in src/debug/ and src/release/. --> <meta-data android:name="com.google.android.geo.API_KEY" android:value="@string/google_maps_key" /> <activity android:name=".MapsActivity" android:label="@string/title_activity_maps"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> </manifest> 

// Gradle: apply the plugin: 'com.android.application'

 android { compileSdkVersion 23 buildToolsVersion "23.0.2" defaultConfig { applicationId "com.example.user.maptest" minSdkVersion 19 targetSdkVersion 23 versionCode 1 versionName "1.0" } buildTypes { release { minifyEnabled false proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' } } } dependencies { compile fileTree(dir: 'libs', include: ['*.jar']) testCompile 'junit:junit:4.12' compile 'com.android.support:appcompat-v7:23.1.1' compile 'com.google.android.gms:play-services:8.4.0' } apply plugin: 'com.google.gms.google-services' 

Answer 1

The bottom line of your problem is the line in your logcat

 Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'boolean java.io.File.mkdir()' on a null object reference at com.google.maps.api.android.lib6.gmm6.m.ad.a(Unknown Source) 

You need an SD card to run the code in play-services:8.4.0 . Please see this for more information on your current issue.

EDIT: This issue has already been fixed. Upgrading Google Play services to 9.0.83 will solve this problem.