错误在谷歌地图加载

Question

我得到这个崩溃时试图启动任意地图活动..

这是我依赖的gradle： 依赖{ 编译文件树（包括：[“的* .jar”]，DIR： '库'） testCompile '的junit：junit的：4.12'

compile 'com.android.support:appcompat-v7:23.4.0' 
compile 'com.jakewharton:butterknife:7.0.1' 
compile 'com.android.support:design:23.4.0' 
compile 'com.facebook.android:facebook-android-sdk:4.5.0' 
compile 'de.hdodenhof:circleimageview:2.1.0' 
compile 'com.mcxiaoke.volley:library-aar:1.0.0' 
compile 'cn.pedant.sweetalert:library:1.3' 
compile 'com.squareup.picasso:picasso:2.3.2' 
compile 'com.android.support:support-v4:23.4.0' 
compile 'com.android.support:multidex:1.0.0' 
compile 'com.google.android.gms:play-services-location:8.4.0' 
compile 'com.android.support:cardview-v7:23.4.0' 
compile 'com.melnykov:floatingactionbutton:1.3.0' 
compile 'org.jbundle.util.osgi.wrapped:org.jbundle.util.osgi.wrapped.org.apache.http.client:4.1.2' 
compile 'com.google.code.gson:gson:2.7' 

compile 'com.google.android.gms:play-services-maps:8.4.0' 
compile 'com.google.android.gms:play-services-gcm:8.4.0' 
compile 'com.onesignal:OneSignal:3.4.1' 

compile 'com.wang.avi:library:1.0.3' 
compile 'com.nineoldandroids:library:2.4.0' 


} 

这是logcat的

11-05 10:00:19.603 10285-10285/com.wneet.white E/AndroidRuntime: FATAL EXCEPTION: main 
                   Process: com.wneet.white, PID: 10285 
                   java.lang.RuntimeException: Unable to start activity ComponentInfo{com.wneet.white/com.wneet.white.LoadingFirst}: java.lang.NullPointerException 
                    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2519) 
                    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2578) 
                    at android.app.ActivityThread.access$900(ActivityThread.java:170) 
                    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1317) 
                    at android.os.Handler.dispatchMessage(Handler.java:102) 
                    at android.os.Looper.loop(Looper.java:146) 
                    at android.app.ActivityThread.main(ActivityThread.java:5727) 
                    at java.lang.reflect.Method.invokeNative(Native Method) 
                    at java.lang.reflect.Method.invoke(Method.java:515) 
                    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1291) 
                    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1107) 
                    at dalvik.system.NativeStart.main(Native Method) 
                    Caused by: java.lang.NullPointerException 
                    at com.wneet.white.LoadingFirst.onCreate(LoadingFirst.java:88) 
                    at android.app.Activity.performCreate(Activity.java:5581) 
                    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1093) 
                    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2483) 
                    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2578)  
                    at android.app.ActivityThread.access$900(ActivityThread.java:170)  
                    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1317)  
                    at android.os.Handler.dispatchMessage(Handler.java:102)  
                    at android.os.Looper.loop(Looper.java:146)  
                    at android.app.ActivityThread.main(ActivityThread.java:5727)  
                    at java.lang.reflect.Method.invokeNative(Native Method)  
                    at java.lang.reflect.Method.invoke(Method.java:515)  
                    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1291)  
                    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1107)  
                    at dalvik.system.NativeStart.main(Native Method)  

thanx提前。

Answer 1

请检查并确保您能够使用兼容的Google Play服务SDK设置您的项目，如Setting Up Google Play Services中所述。如果您尚未安装Google Play服务SDK，请按照Adding SDK Packages的指南进行操作。

此blog post和GitHub post中给出的解决方案也可能为您提供可能的解决方法并可能有所帮助。