【发布时间】：2020-05-21 02:52:48
【问题描述】：
我在从 pub.dev 安装新软件包时遇到了一些问题。我用这个命令在我的根项目中创建了我自己的包：
flutter create --template=package main_template
结构文件夹
我在 main_template 而不是 lib 中安装新包。每次在 main_template 中安装新包我都会收到此错误：
Compiler message:
Error: Could not resolve the package 'device_info' in 'package:device_info/device_info.dart'.
sinergi_flutter_template/main_template/lib/variable/get_device_id.dart:3:8: Error: Not found: 'package:device_info/device_info.dart'
import 'package:device_info/device_info.dart';
^
sinergi_flutter_template/main_template/lib/variable/get_device_id.dart:9:11: Error: 'DeviceInfoPlugin' isn't a type.
final DeviceInfoPlugin deviceInfoPlugin = DeviceInfoPlugin();
^^^^^^^^^^^^^^^^
sinergi_flutter_template/main_template/lib/variable/get_device_id.dart:9:47: Error: The method 'DeviceInfoPlugin' isn't defined for the class 'GetDeviceId'.
- 'GetDeviceId' is from 'package:main_template/variable/get_device_id.dart' ('sinergi_flutter_template/main_template/lib/variable/get_device_id.dart').
Try correcting the name to the name of an existing method, or defining a method named 'DeviceInfoPlugin'.
final DeviceInfoPlugin deviceInfoPlugin = DeviceInfoPlugin();
^^^^^^^^^^^^^^^^
U
nhandled exception:
FileSystemException(uri=org-dartlang-u
ntranslatable-uri:package%3Adevice_info%2Fdevice_info.dart; message=StandardFileSystem only supports file:* and data:* URIs)
#0 StandardFileSystem.entityForUri (package:front_end/src/api_prototype/standard_file_system.dart:33:7)
#1 asFileUri ( (package:vm/kernel_front_end.dart:604:3)
7)
#2 writeDepfile (package:vm/kernel_front_end.dart:799:21)
<asynchronous suspension>
#3 FrontendCompiler.compile (package:frontend_server/frontend_server.dart:472:15)
<asynchronous suspension>
#4 _FlutterFrontendCompiler.compile (package:flut
ter_frontend_server/server.dart:38:22)
#5 starter (package:flutter_frontend_server/server.dart:149:27)
#6 main (file:///C:/b/s/w/ir/cache/builder/src/flutter/flutter_frontend_server/bin/starter.dart:8:30)
#7 _startIsolate.<anonymous closure> (dart:isolate-patch/isolate_patch.dart:305:32)
#8 _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:174:12)
Target kernel_snapshot failed: Exception: Errors during snapshot creation: null
build failed.
FAILURE: Build failed with an exception.
* Where:
Script 'C:\flutter\flutter\packages\flutter_tools\gradle\flutter.gradle' line: 780
* What went wrong:
Execution failed for task ':app:compileFlutterBuildDebug'.
> Process 'command 'C:\flutter\flutter\bin\flutter.bat'' finished with non-zero exit value 1
* 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 20s
Gradle task assembleDebug failed with exit code 1
Exited (sigterm)
直到现在我尝试安装 3 个包 [缓存网络图像、设备信息、闪屏]。所有的包都给我这个错误。
我该如何解决？
【问题讨论】：
-
您是否已将软件包添加到您的 pubspec 文件并运行
flutter pub get？ -
不要将 Flutter 项目放在其他 Flutter 项目中。他们应该是兄弟姐妹；您的应用程序和包将处于同一级别，例如
projects。在其中一个的 pubspec 中，使用path: ../other引用另一个。 -
@Abion47 在运行
flutter pub get之后一切正常！我认为使用flutter packages get就足够了，但是在关注您的评论之后是有效的。 -
@Richard Heap 所以我的
main_template应该在我的根项目之外？ -
是的，因为这样您就可以在以后的项目中重复使用它。