我在Github上克隆了project。它使用不同的插件。
dependencies:
flutter:
sdk: flutter
cupertino_icons: 0.1.2
firebase_auth: 0.7.0
google_sign_in: 3.2.4
cloud_firestore: 0.8.2+3
image_picker: 0.4.12+1
shared_preferences: 0.4.3
firebase_storage: 1.0.4
cached_network_image: 0.7.0
intl: 0.15.7
有一个博客post，建议保持版本相同。我的问题是image_picker插件。如果您不想将应用程序迁移到Android X，则建议您使用0.4.12+1版本的stackoverflow。这是我的错误
/Users/gerardhorgan/Downloads/flutter/.pub-cache/hosted/pub.dartlang.org/image_picker-0.4.12+1/android/src/main/java/io/flutter/plugins/imagepicker/ImagePickerPlugin.java:8: error: package android.support.annotation does not exist
import android.support.annotation.VisibleForTesting;
^
/Users/gerardhorgan/Downloads/flutter/.pub-cache/hosted/pub.dartlang.org/image_picker-0.4.12+1/android/src/main/java/io/flutter/plugins/imagepicker/ImagePickerDelegate.java:15: error: package android.support.annotation does not exist
import android.support.annotation.VisibleForTesting;
^
/Users/gerardhorgan/Downloads/flutter/.pub-cache/hosted/pub.dartlang.org/image_picker-0.4.12+1/android/src/main/java/io/flutter/plugins/imagepicker/ImagePickerPlugin.java:40: error: cannot find symbol
@VisibleForTesting
^
symbol: class VisibleForTesting
location: class ImagePickerPlugin
/Users/gerardhorgan/Downloads/flutter/.pub-cache/hosted/pub.dartlang.org/image_picker-0.4.12+1/android/src/main/java/io/flutter/plugins/imagepicker/ImagePickerDelegate.java:68: error: cannot find symbol
@VisibleForTesting static final int REQUEST_CODE_CHOOSE_IMAGE_FROM_GALLERY = 2342;
^
symbol: class VisibleForTesting
location: class ImagePickerDelegate
/Users/gerardhorgan/Downloads/flutter/.pub-cache/hosted/pub.dartlang.org/image_picker-0.4.12+1/android/src/main/java/io/flutter/plugins/imagepicker/ImagePickerDelegate.java:69: error: cannot find symbol
@VisibleForTesting static final int REQUEST_CODE_TAKE_IMAGE_WITH_CAMERA = 2343;
^
symbol: class VisibleForTesting
location: class ImagePickerDelegate
/Users/gerardhorgan/Downloads/flutter/.pub-cache/hosted/pub.dartlang.org/image_picker-0.4.12+1/android/src/main/java/io/flutter/plugins/imagepicker/ImagePickerDelegate.java:70: error: cannot find symbol
@VisibleForTesting static final int REQUEST_EXTERNAL_IMAGE_STORAGE_PERMISSION = 2344;
^
symbol: class VisibleForTesting
location: class ImagePickerDelegate
/Users/gerardhorgan/Downloads/flutter/.pub-cache/hosted/pub.dartlang.org/image_picker-0.4.12+1/android/src/main/java/io/flutter/plugins/imagepicker/ImagePickerDelegate.java:71: error: cannot find symbol
@VisibleForTesting static final int REQUEST_CAMERA_IMAGE_PERMISSION = 2345;
^
symbol: class VisibleForTesting
location: class ImagePickerDelegate
/Users/gerardhorgan/Downloads/flutter/.pub-cache/hosted/pub.dartlang.org/image_picker-0.4.12+1/android/src/main/java/io/flutter/plugins/imagepicker/ImagePickerDelegate.java:72: error: cannot find symbol
@VisibleForTesting static final int REQUEST_CODE_CHOOSE_VIDEO_FROM_GALLERY = 2352;
^
symbol: class VisibleForTesting
location: class ImagePickerDelegate
/Users/gerardhorgan/Downloads/flutter/.pub-cache/hosted/pub.dartlang.org/image_picker-0.4.12+1/android/src/main/java/io/flutter/plugins/imagepicker/ImagePickerDelegate.java:73: error: cannot find symbol
@VisibleForTesting static final int REQUEST_CODE_TAKE_VIDEO_WITH_CAMERA = 2353;
^
symbol: class VisibleForTesting
location: class ImagePickerDelegate
/Users/gerardhorgan/Downloads/flutter/.pub-cache/hosted/pub.dartlang.org/image_picker-0.4.12+1/android/src/main/java/io/flutter/plugins/imagepicker/ImagePickerDelegate.java:74: error: cannot find symbol
@VisibleForTesting static final int REQUEST_EXTERNAL_VIDEO_STORAGE_PERMISSION = 2354;
^
symbol: class VisibleForTesting
location: class ImagePickerDelegate
/Users/gerardhorgan/Downloads/flutter/.pub-cache/hosted/pub.dartlang.org/image_picker-0.4.12+1/android/src/main/java/io/flutter/plugins/imagepicker/ImagePickerDelegate.java:75: error: cannot find symbol
@VisibleForTesting static final int REQUEST_CAMERA_VIDEO_PERMISSION = 2355;
^
symbol: class VisibleForTesting
location: class ImagePickerDelegate
/Users/gerardhorgan/Downloads/flutter/.pub-cache/hosted/pub.dartlang.org/image_picker-0.4.12+1/android/src/main/java/io/flutter/plugins/imagepicker/ImagePickerDelegate.java:77: error: cannot find symbol
@VisibleForTesting final String fileProviderName;
^
symbol: class VisibleForTesting
location: class ImagePickerDelegate
/Users/gerardhorgan/Downloads/flutter/.pub-cache/hosted/pub.dartlang.org/image_picker-0.4.12+1/android/src/main/java/io/flutter/plugins/imagepicker/ImagePickerDelegate.java:164: error: cannot find symbol
@VisibleForTesting
^
symbol: class VisibleForTesting
location: class ImagePickerDelegate
13 errors
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':image_picker:compileDebugJavaWithJavac'.
> Compilation failed; see the compiler error output for details.
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
BUILD FAILED in 2s
*******************************************************************************************
The Gradle failure may have been because of AndroidX incompatibilities in this Flutter app.
*******************************************************************************************
Finished with error: Gradle task assembleDebug failed with exit code 1
我想知道是什么原因导致不兼容导致我的应用无法编译？
答案 0 :(得分：0)
您需要处理AndroidX compatibility的文档
答案 1 :(得分：0)
最好的选择是迁移androidX应用程序。请按照android-studio中的步骤操作：
1）删除您对pubspec文件的所有依赖关系，然后运行flutter packages get
2）在android-studio中仅打开您应用的android模块。您可以通过右键单击项目根目录> flutter>在android studio中打开android模块来完成此操作
3）在android-studio菜单中仅打开android模块后，转到Refactor> MigrateToAndoridX ...
4）进行迁移！
5）关闭android模块android-studio实例并返回到您的flutter项目
6）将所有依赖项插入pubspec文件中，然后运行flutter packages get
答案 2 :(得分：0)
使用 image_picker: ^0.6.6+1 并添加 AndroidManifest.xml 如下：
<uses-permission android:name="android.permission.INTERNET"/>
这种方式对我有用！