颤振中任务'：image_picker：compileDebugJavaWithJavac'的执行失败

Question

我不知道我的 Flutter 出了什么问题，出现这个错误：

Launching lib\main.dart on NOTE 5 in debug mode...
Initializing gradle...                                             20.2s
Resolving dependencies...                                         149.7s (!)
Running Gradle task 'assembleDebug'...
Note: C:\flutter\.pub-cache\hosted\pub.dartlang.org\cloud_firestore-0.12.11\android\src\main\java\io\flutter\plugins\firebase\cloudfirestore\CloudFirestorePlugin.java uses or overrides a deprecated API.

Note: Recompile with -Xlint:deprecation for details.

Note: C:\flutter\.pub-cache\hosted\pub.dartlang.org\cloud_firestore-0.12.11\android\src\main\java\io\flutter\plugins\firebase\cloudfirestore\CloudFirestorePlugin.java uses unchecked or unsafe operations.

Note: Recompile with -Xlint:unchecked for details.

C:\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;

                                 ^

C:\flutter\.pub-cache\hosted\pub.dartlang.org\image_picker-0.4.12+1\android\src\main\java\io\flutter\plugins\imagepicker\ImagePickerDelegate.java:16: error: cannot find symbol

import android.support.v4.app.ActivityCompat;

                             ^

  symbol:   class ActivityCompat

  location: package android.support.v4.app

C:\flutter\.pub-cache\hosted\pub.dartlang.org\image_picker-0.4.12+1\android\src\main\java\io\flutter\plugins\imagepicker\ImagePickerDelegate.java:17: error: package android.support.v4.content does not exist

import android.support.v4.content.FileProvider;

                                 ^

C:\flutter\.pub-cache\hosted\pub.dartlang.org\image_picker-0.4.12+1\android\src\main\java\io\flutter\plugins\imagepicker\ImagePickerFileProvider.java:3: error: package android.support.v4.content does not exist

import android.support.v4.content.FileProvider;

                                 ^

C:\flutter\.pub-cache\hosted\pub.dartlang.org\image_picker-0.4.12+1\android\src\main\java\io\flutter\plugins\imagepicker\ImagePickerFileProvider.java:10: error: cannot find symbol

public class ImagePickerFileProvider extends FileProvider {}

                                             ^

  symbol: class FileProvider

C:\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;

                                 ^

C:\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

C:\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

C:\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

C:\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

C:\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

C:\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

C:\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

C:\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

C:\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

C:\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

C:\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

C:\flutter\.pub-cache\hosted\pub.dartlang.org\image_picker-0.4.12+1\android\src\main\java\io\flutter\plugins\imagepicker\ImagePickerDelegate.java:122: error: cannot find symbol

            return ActivityCompat.checkSelfPermission(activity, permissionName)

                   ^

  symbol: variable ActivityCompat

C:\flutter\.pub-cache\hosted\pub.dartlang.org\image_picker-0.4.12+1\android\src\main\java\io\flutter\plugins\imagepicker\ImagePickerDelegate.java:128: error: cannot find symbol

            ActivityCompat.requestPermissions(activity, new String[] {permissionName}, requestCode);

            ^

  symbol: variable ActivityCompat

C:\flutter\.pub-cache\hosted\pub.dartlang.org\image_picker-0.4.12+1\android\src\main\java\io\flutter\plugins\imagepicker\ImagePickerDelegate.java:140: error: cannot find symbol

            return FileProvider.getUriForFile(activity, fileProviderName, file);

                   ^

  symbol: variable FileProvider

20 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.



* Get more help at https://help.gradle.org



BUILD FAILED in 4m 35s
Running Gradle task 'assembleDebug'...                            287.0s (!)
*******************************************************************************************
The Gradle failure may have been because of AndroidX incompatibilities in this Flutter app.
See for more information on the problem and how to fix it.
*******************************************************************************************
Gradle task assembleDebug failed with exit code 1

Answer 1

通过将 image_picker 版本更改为 image_picker 对我有用：^0.6.0+9

Answer 2

正如最后一个错误所说：

The Gradle failure may have been because of AndroidX incompatibilities in this Flutter app. See for more information on the problem and how to fix it.

您需要将您的 Android 模块迁移到 AndroidX。现在大部分 Flutter 依赖项都是用 AndroidX 构建的，所以你最好也升级你的项目。

在 Android Studio 或 IntelliJ 中，您可以通过访问菜单 Refactor -> Migrate to AndroidX...进行迁移...