2天前，XML Layout运行完美，现在（没有结构变化）它给了我错误？

Question

两天前，我发布了the following question。虽然有问题，但它仍然运行 - 我仍然可以在手机上测试代码。但是，如果代码没有重大更改（并且绝对没有结构更改），程序将在我进入第二个活动并崩溃时拒绝运行。

幸运的是，我已在链接问题中发布了该活动的所有XML代码。

错误（实际警告）

1. Element fragment is not allowed here
2. Element ImageView is not allowed here

这怎么可能？这是我在手机上运行的代码，现在它给了我一长串的错误消息，我无法运行我的第二个Activity，但我可以运行我的第一个活动。

详细

This inspection highlights unallowed XML tags in Android resource files and AndroidManifest.xml

额外信息

1. 自发布链接问题
后，我将我的IDE从Android Studio 1.3 preview 4更新为preview 5

代码

Ran 2天前

<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true">

    <android.support.design.widget.AppBarLayout
        android:id="@+id/appbar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">

        <android.support.design.widget.CollapsingToolbarLayout
            android:id="@+id/collapsing_toolbar"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            app:contentScrim="?attr/colorPrimary"
            app:expandedTitleMarginEnd="16dp"
            app:expandedTitleMarginStart="48dp"
            app:layout_scrollFlags="scroll|enterAlways">

            <ImageView
                android:id="@+id/header"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:background="@drawable/download"

                android:scaleType="centerCrop" />

            <android.support.v7.widget.Toolbar
                android:id="@+id/anim_toolbar"
                android:layout_width="match_parent"
                android:layout_height="?attr/actionBarSize"

                app:layout_collapseMode="pin" />

        </android.support.design.widget.CollapsingToolbarLayout>

    </android.support.design.widget.AppBarLayout>

    <android.support.v4.widget.NestedScrollView
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:layout_below="@+id/anim_toolbar"
        app:layout_behavior="@string/appbar_scrolling_view_behavior">

        <fragment
            android:id="@+id/detail"
            android:name="<package>.<fragment_name>"
            android:layout_width="match_parent"
            android:layout_height="match_parent" />

    </android.support.v4.widget.NestedScrollView>

</android.support.design.widget.CoordinatorLayout>

今天不工作

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true">

    <android.support.design.widget.AppBarLayout
        android:id="@+id/appbar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:fitsSystemWindows="true">

        <android.support.design.widget.CollapsingToolbarLayout
            android:id="@+id/collapsing_toolbar"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            app:contentScrim="?attr/colorPrimary"
            app:expandedTitleMarginEnd="48dp"
            app:expandedTitleMarginStart="48dp"
            app:layout_scrollFlags="scroll|exitUntilCollapsed"
            android:fitsSystemWindows="true">

            <!-- HERE....ERROR -->
            <ImageView  
                android:id="@+id/header"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:background="@drawable/download"
                android:scaleType="centerCrop"
                app:layout_collapseMode="parallax"
                android:contentDescription="Movie Poster"
                android:fitsSystemWindows="true"/>

            <android.support.v7.widget.Toolbar
                android:id="@+id/anim_toolbar"
                android:layout_width="match_parent"
                android:layout_height="?attr/actionBarSize"
                android:fitsSystemWindows="true" />

        </android.support.design.widget.CollapsingToolbarLayout>

    </android.support.design.widget.AppBarLayout>

    <android.support.v4.widget.NestedScrollView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/scrollView"
        android:layout_below="@+id/anim_toolbar"
        app:layout_behavior="@string/appbar_scrolling_view_behavior" >

            <!-- HERE....ERROR -->
            <fragment
                android:id="@+id/movie_detail"
                android:name="com.udacity.rucinskic.spotify_streamer.movies.fragments.MovieOverviewFragment"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                tools:layout="@layout/fragment_movie_detail" />

    </android.support.v4.widget.NestedScrollView>

</android.support.design.widget.CoordinatorLayout>

OnCreateView

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {

    View rootView = inflater.inflate(R.layout.fragment_movie_poster, container, false);

    TextView relaseYear = (TextView) rootView.findViewById(R.id.movie_release_year);
    RatingBar rating = (RatingBar) rootView.findViewById(R.id.movie_rating);
    TextView overview = (TextView) rootView.findViewById(R.id.movie_overview);

    DetailedMovie movie = getMovie();

    DateFormat format = new SimpleDateFormat("yyyy", Locale.US);

    relaseYear.setText(format.format(movie.getDateRelease()));
    rating.setRating(movie.getRating());
    overview.setText(movie.getOverview());

    return rootView;

}

修改

堆栈跟踪

    Process: com.udacity.rucinskic.spotify_streamer, PID: 27320
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.udacity.rucinskic.spotify_streamer/com.udacity.rucinskic.spotify_streamer.SecondaryActivity}: android.view.InflateException: Binary XML file line #66: Error inflating class fragment
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2712)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2777)
            at android.app.ActivityThread.access$900(ActivityThread.java:179)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1462)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:145)
            at android.app.ActivityThread.main(ActivityThread.java:5972)
            at java.lang.reflect.Method.invoke(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:372)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1399)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1194)
     Caused by: android.view.InflateException: Binary XML file line #66: Error inflating class fragment
            at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:770)
            at android.view.LayoutInflater.rInflate(LayoutInflater.java:813)
            at android.view.LayoutInflater.rInflate(LayoutInflater.java:821)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:511)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:415)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:366)
            at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:249)
            at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:106)
            at com.udacity.rucinskic.spotify_streamer.SecondaryActivity.onCreate(SecondaryActivity.java:21)
            at android.app.Activity.performCreate(Activity.java:6289)
            at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1119)
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2665)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2777)
            at android.app.ActivityThread.access$900(ActivityThread.java:179)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1462)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:145)
            at android.app.ActivityThread.main(ActivityThread.java:5972)
            at java.lang.reflect.Method.invoke(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:372)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1399)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1194)
     Caused by: java.lang.IllegalArgumentException: Bad class: class java.util.GregorianCalendar
            at java.text.DateFormat.format(DateFormat.java:296)
            at java.text.Format.format(Format.java:93)
            at com.udacity.rucinskic.spotify_streamer.movies.fragments.MovieOverviewFragment.onCreateView(MovieOverviewFragment.java:35)
            at android.support.v4.app.Fragment.performCreateView(Fragment.java:1789)
            at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:924)
            at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1116)
            at android.support.v4.app.FragmentManagerImpl.addFragment(FragmentManager.java:1218)
            at android.support.v4.app.FragmentManagerImpl.onCreateView(FragmentManager.java:2170)
            at android.support.v4.app.FragmentActivity.onCreateView(FragmentActivity.java:300)
            at android.support.v7.app.AppCompatDelegateImplV7.callActivityOnCreateView(AppCompatDelegateImplV7.java:838)
            at android.support.v7.app.AppCompatDelegateImplV11.callActivityOnCreateView(AppCompatDelegateImplV11.java:34)
            at android.support.v7.app.AppCompatDelegateImplV7.onCreateView(AppCompatDelegateImplV7.java:826)
            at android.support.v4.view.LayoutInflaterCompatHC$FactoryWrapperHC.onCreateView(LayoutInflaterCompatHC.java:44)
            at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:732)
            at android.view.LayoutInflater.rInflate(LayoutInflater.java:813)
            at android.view.LayoutInflater.rInflate(LayoutInflater.java:821)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:511)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:415)
            at android.view.LayoutInflater.inflate(LayoutInflater.java:366)
            at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:249)
            at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:106)
            at com.udacity.rucinskic.spotify_streamer.SecondaryActivity.onCreate(SecondaryActivity.java:21)
            at android.app.Activity.performCreate(Activity.java:6289)
            at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1119)
            at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2665)
            at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2777)
            at android.app.ActivityThread.access$900(ActivityThread.java:179)
            at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1462)
            at android.os.Handler.dispatchMessage(Handler.java:102)
            at android.os.Looper.loop(Looper.java:145)
            at android.app.ActivityThread.main(ActivityThread.java:5972)
            at java.lang.reflect.Method.invoke(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:372)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1399)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1194)

Answer 1

我遇到了同样的问题。尝试将ImageView交换到android.support.v7.widget.AppCompatImageView。它解决了我的问题！

Answer 2

尝试：

• 在APP MODULE中设置新建的工具
• 在项目中设置新的插件
• 检查支持图书馆的依赖
• 无效CACHE

项目

app模块

支持app模块中的依赖项 我自己尝试过＆amp;我没有任何问题

Answer 3

我有同样的问题。首先关闭您的项目，然后再次导入。它解决了我的问题。