Questions tagged «upgrade»

此标记是指用同一系统的较新版本替换特定系统的过程

11
ImportError:无法从“ django.utils”导入名称“ six”
目前,我已经将Django的版本从升级2.0.6到,3.0并且在调用python manage.py shellcommand时突然出现以下错误: ImportError:无法从“ django.utils”(/ path-to-project / project / venv / lib / python3.7 / site-packages / django / utils / init .py)导入名称“ six” 完整跟踪: Traceback (most recent call last): File "manage.py", line 13, in <module> execute_from_command_line(sys.argv) File "/path-to-project/project/venv/lib/python3.7/site-packages/django/core/management/__init__.py", line 401, in execute_from_command_line utility.execute() File "/path-to-project/project/venv/lib/python3.7/site-packages/django/core/management/__init__.py", line 377, in execute …

5
flutter-需要流控制集合,但是不是吗?
升级flutter(主要版本和稳定版本)和dart之后,我收到关于实验的错误-未为我在项目中使用的各种for循环启用flow-control-collections。我尝试使用此条目修复它,但这使事情变得奇怪。因此,现在出现以下错误,告诉我需要启用control-flow-collections实验,同时告诉我不再需要它。 我正在使用的每个for循环都会出现此错误。 这是我的扑打--version Stable: Flutter 1.12.13+hotfix.5 • channel stable • https://github.com/flutter/flutter.git Framework • revision 27321ebbad (13 days ago) • 2019-12-10 18:15:01 -0800 Engine • revision 2994f7e1e6 Tools • Dart 2.7.0 Master: Flutter 1.13.6-pre.16 • channel master • https://github.com/flutter/flutter.git Framework • revision fcaf9c4070 (2 days ago) • 2019-12-21 14:03:01 -0800 Engine …
14 flutter  dart  upgrade 
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