Question

我是扑扑发展的新手。当我尝试在android studio中启动flutter应用程序时，它会同步，但是当我运行该应用程序时，屏幕会变成白色的空白屏幕。在命令行中，出现以下错误。

    Launching lib\main.dart on Android SDK built for x86 in debug mode...
Initializing gradle...
Resolving dependencies...
Running Gradle task 'assembleDebug'...
Malformed line in ndk source.properties: "### Android Tool: Source of this archive.".
Malformed line in ndk source.properties: "#Fri Jun 05 17:15:06 IST 2015".
Malformed line in ndk source.properties: "Archive.HostBits=64".
Malformed line in ndk source.properties: "Archive.HostOs=windows".
Malformed line in ndk source.properties: "Pkg.Desc=Android NDK".
Malformed line in ndk source.properties: "Pkg.License=To get started with the Android SDK, you must agree to the following terms and conditions.\n\nThis is the Android SDK License Agreement (the "License Agreement").\n\n1. Introduction\n\n1.1 The Android SDK (referred to in the License Agreement as the "SDK" and specifically including the Android system files, packaged APIs, and SDK library files and tools , if and when they are made available) is licensed to you subject to the terms of the License Agreement. The License Agreement forms a legally binding contract between you and Google in relation to your use of the SDK.\n\n1.2 "Android" means the Android software stack for devices, as made available under the Android Open Source Project, which is located at the following URL\: http\://source.android.com/, as updated from time to time.\n\n1.3 "Google" means Google Inc., a Delaware corporation with principal place of business at 1600 Amphitheatre Parkway, Mountain View, CA 94043, United States.\n\n2. Accepting the License Agreement\n\n2.1 In order to use the SDK, you must first agree to the License Agreement. Malformed line in ndk source.properties: "Pkg.LicenseRef=android-sdk-license".
Malformed line in ndk source.properties: "Pkg.Revision=1".
Malformed line in ndk source.properties: "Pkg.SourceUrl=https\://dl.google.com/android/repository/repository-11.xml".
Built build\app\outputs\apk\debug\app-debug.apk.
Installing build\app\outputs\apk\app.apk...
Syncing files to device Android SDK built for x86...
I/Choreographer( 7081): Skipped 53 frames!  The application may be doing too much work on its main thread.
D/EGL_emulation( 7081): eglMakeCurrent: 0xad5e4e00: ver 3 0 (tinfo 0xa2dbf960)
D/EGL_emulation( 7081): eglMakeCurrent: 0xad5e5820: ver 3 0 (tinfo 0xa5883310)

当我使用Flutter Doctor --android-license时，

   D:\Projects\Flutter_Projects\FlutterUi\flutter_app>flutter doctor --android-licenses
Malformed line in ndk source.properties: "### Android Tool: Source of this archive.".
Malformed line in ndk source.properties: "#Fri Jun 05 17:15:06 IST 2015".
Malformed line in ndk source.properties: "Archive.HostBits=64".
Malformed line in ndk source.properties: "Archive.HostOs=windows".
Malformed line in ndk source.properties: "Pkg.Desc=Android NDK".
Malformed line in ndk source.properties: "Pkg.License=To get started with the Android SDK, you must agree to the following terms and conditions.
All SDK package licenses accepted.======] 100% Computing updates...

当我使用Flutter Doctor -v

 [√] Flutter (Channel master, v1.3.14-pre.64, on Microsoft Windows [Version 10.0.17763.379], locale en-US)
    • Flutter version 1.3.14-pre.64 at D:\FlutterMaster\flutter
    • Framework revision 2e637d8303 (51 minutes ago), 2019-03-23 13:20:41 -0400
    • Engine revision 9f878fcb3e
    • Dart version 2.2.1 (build 2.2.1-dev.2.0 None)

[√] Android toolchain - develop for Android devices (Android SDK version 28.0.3)
    • Android SDK at C:\Users\MageshPandian\AppData\Local\Android\Sdk
    • Android NDK location not configured (optional; useful for native profiling support)
    • Platform android-28, build-tools 28.0.3
    • Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java
    • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1248-b01)
    • All Android licenses accepted.

[√] Android Studio (version 3.3)
    • Android Studio at C:\Program Files\Android\Android Studio
    • Flutter plugin version 33.4.1
    • Dart plugin version 182.5215
    • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1248-b01)

[!] VS Code, 64-bit edition (version 1.29.1)
    • VS Code at C:\Program Files\Microsoft VS Code
    X Flutter extension not installed; install from
      https://marketplace.visualstudio.com/items?itemName=Dart-Code.flutter

[!] Connected device
    ! No devices available

! Doctor found issues in 2 categories.

Answer 1

检查您发布的日志，可能是由于跳帧导致仿真器运行缓慢，或者代码处理时间过长。我很好奇，如果使用hot restart运行该应用程序时是否发生相同的行为，或者该应用程序在物理设备上运行。

如果您仍然遇到问题，可以提交问题工单here以及最低限度的复制和复制行为的步骤。

颤振白屏问题

1 个答案: