Dart/flutter : application crashes on startup

Question

我有一个非常有趣的问题，我可以在模拟器上很好地运行我的应用程序，flutter build apk 成功，我可以在 Google Play 上发布新版本或只安装 apk 在我的手机上(Pixel 2 XL，目前在 4 月的安全补丁中)。

但是当我在手机上启动它时，它会立即崩溃。我还没有尝试安装 debug apk，首先我想应用 May 补丁。

我已经尝试过多次升级 flutter ，但似乎也没有任何问题:

C:\Android\osszefogasaszanhuzokert>flutter upgrade
Upgrading Flutter from c:\Android\flutter...
From https://github.com/flutter/flutter
   3d3673a34..23098dde5  master     -> origin/master
Already up to date.

Upgrading engine...
Already up-to-date.

Flutter 0.3.6-pre.81 • channel beta • https://github.com/flutter/flutter.git
Framework • revision 2849bc04ff (10 days ago) • 2018-05-01 20:07:45 -0700
Engine • revision d5c1117170
Tools • Dart 2.0.0-dev.52.0.flutter-011676641a

Running "flutter packages upgrade" in osszefogasaszanhuzokert... 14.4s

Running flutter doctor...
Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel beta, v0.3.6-pre.81, on Microsoft Windows [Version 10.0.15063], locale en-GB)
[√] Android toolchain - develop for Android devices (Android SDK 27.0.3)
[√] Android Studio (version 3.1)
[√] Connected devices (1 available)

• No issues found!

我最近更换了笔记本电脑，并在这台新笔记本电脑上查看了我的代码的 git 存储库。有一些问题，但我最终解决了这些问题。唯一不同的是，现在项目名称只是 osszefogasaszanhuzokert，而包名称是 osszefogasaszanhuzokert2 - 但我认为这不会造成任何问题。

我的猜测是问题出在我的 AndroidManifest.xml 中:

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.zgyorkei.osszefogasaszanhuzokert2">

    <!-- The INTERNET permission is required for development. Specifically,
         flutter needs it to communicate with the running application
         to allow setting breakpoints, to provide hot reload, etc.
    -->
    <uses-permission android:name="android.permission.INTERNET"/>

    <!-- io.flutter.app.FlutterApplication is an android.app.Application that
         calls FlutterMain.startInitialization(this); in its onCreate method.
         In most cases you can leave this as-is, but you if you want to provide
         additional functionality it is fine to subclass or reimplement
         FlutterApplication and put your custom class here. -->
    <application
        android:name="io.flutter.app.FlutterApplication"
        android:label="Összefogás A Szánhúzókért"
        android:icon="@mipmap/ic_launcher">
        <activity
            android:name="com.zgyorkei.osszefogasaszanhuzokert2.MainActivity"
            android:launchMode="singleTop"
            android:theme="@style/LaunchTheme"
            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|layoutDirection|fontScale"
            android:hardwareAccelerated="true"
            android:windowSoftInputMode="adjustResize">
            <!-- This keeps the window background of the activity showing
                 until Flutter renders its first frame. It can be removed if
                 there is no splash screen (such as the default splash screen
                 defined in @style/LaunchTheme). -->
            <meta-data
                android:name="io.flutter.app.android.SplashScreenUntilFirstFrame"
                android:value="true" />
            <intent-filter>
                <action android:name="android.intent.action.MAIN"/>
                <category android:name="android.intent.category.LAUNCHER"/>
            </intent-filter>
        </activity>
    </application>
</manifest>

Android Studio 将几个属性标记为不允许，但正如您所见，我几乎将所有内容都保留为默认值 - 除了我出于明显的原因更改了 android:label。

编辑:我安装了调试 apk，它运行良好。但是，我能够得到发布apk崩溃的adb logcat，问题似乎如下:

05-12 07:38:23.341 29595 29595 I crash_dump32: performing dump of process 29560 (target tid = 29560)
05-12 07:38:23.341 29595 29595 F DEBUG   : *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
05-12 07:38:23.341 29595 29595 F DEBUG   : Build fingerprint: 'google/taimen/taimen:8.1.0/OPM2.171019.029.B1/4720900:user/release-keys'
05-12 07:38:23.341 29595 29595 F DEBUG   : Revision: 'rev_10'
05-12 07:38:23.341 29595 29595 F DEBUG   : ABI: 'arm'
05-12 07:38:23.341 29595 29595 F DEBUG   : pid: 29560, tid: 29560, name: saszanhuzokert2  >>> com.zgyorkei.osszefogasaszanhuzokert2 <<<
05-12 07:38:23.342 29595 29595 F DEBUG   : signal 6 (SIGABRT), code -6 (SI_TKILL), fault addr --------
05-12 07:38:23.343 29595 29595 F DEBUG   : Abort message: '[FATAL:flutter/runtime/dart_vm.cc(409)] Error while initializing the Dart VM: Snapshot not compatible with the current VM configuration: the snapshot requires 'product no-type_checks no-asserts no-error_on_bad_type no-error_on_bad_override arm-eabi hardfp' but the VM has 'product no-type_checks no-asserts no-error_on_bad_type no-error_on_bad_override arm-eabi softfp'

如何将 Dart VM 更改为使用 hardfp 而不是 softfp？

Answer 1

我有同样的问题。对我来说，这发生在我重命名我的应用程序并更改包名称之后。我没有为 android 正确执行此操作。

关注 this guide of how to change the package name 后，对于 android 来说一切正常。

确保 AndroidManifest.xml 和 android/app/build.gradle 和 android/app/src/.../MainActivity 中的包名。 java 是一样的。还要检查 ios/Runner/Info.plist iOS 版本的 CFBundleName 的值。