java.lang.NullPointerException: Attempt to invoke virtual method 'android.content.res.XmlResourcePa

今天遇到的问题：

app apk更新的时候遇到的问题

W/System.err: java.lang.NullPointerException: Attempt to invoke virtual method 'android.content.res.XmlResourceParser android.content.pm.ProviderInfo.loadXmlMetaData(android.content.pm.PackageManager, java.lang.String)' on a null object reference
        at android.support.v4.content.FileProvider.parsePathStrategy(FileProvider.java:591)
W/System.err:     at android.support.v4.content.FileProvider.getPathStrategy(FilePro

vider.java:565)
        at android.support.v4.content.FileProvider.getUriForFile(FileProvider.java:403)
        at org.come.downZip.InstallUtil.startInstallN(InstallUtil.java:58)
        at org.come.downZip.InstallUtil.startInstallO(InstallUtil.java:78)
        at org.come.downZip.InstallUtil.install(InstallUtil.java:31)
        at io.dcloud.HBuilder.jsandjava.MainActivity.onCreate(MainActivity.java:145)
        at android.app.Activity.performCreate(Activity.java:7383)
W/System.err:     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1218)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3256)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3411)
        at android.app.ActivityThread.-wrap12(Unknown Source:0)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1994)
        at android.os.Handler.dispatchMessage(Handler.java:108)
        at android.os.Looper.loop(Looper.java:166)
        at android.app.ActivityThread.main(ActivityThread.java:7529)
W/System.err:     at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:245)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:921)

 

由报错FileProvider可以知道是配置不一致的问题

三个地方检查一下

1.AndroidManifest.xml的配置

2.res/xml/file_paths.xml

这个文件是配置哪个文件是共享的    

具体配置可以参考https://blog.****.net/u013553529/article/details/83900704

3.检查使用的过程