错误:无法“发布升级"颤动工具.五秒钟后重试 [英] Error: Unable to 'pub upgrade' flutter tool. Retrying in five seconds
问题描述
日志:
E:\ Flutter> flutter doctor正在检查Dart SDK版本...正在下载Flutter引擎ead227f和Dart SDK的解压缩Dart SDK的解压缩...正在更新颤动工具...错误:无法发布升级"颤动工具.五秒钟后重试...
E:\Flutter>flutter doctor Checking Dart SDK version... Downloading Dart SDK from Flutter engine ead227f a... Unzipping Dart SDK... Updating flutter tool... Error: Unable to 'pub upgrade' flutter tool. Retrying in five seconds...
等待0秒钟，按CTRL + C退出...错误:无法发布升级工具".五秒钟后重试...
Waiting for 0 seconds, press CTRL+C to quit ... Error: Unable to 'pub upgrade' flutter tool. Retrying in five seconds...
等待0秒钟，按CTRL + C退出...错误:无法发布升级工具".五秒钟后重试...
Waiting for 0 seconds, press CTRL+C to quit ... Error: Unable to 'pub upgrade' flutter tool. Retrying in five seconds...
等待0秒钟，按CTRL + C退出...错误:无法发布升级工具".五秒钟后重试...
Waiting for 0 seconds, press CTRL+C to quit ... Error: Unable to 'pub upgrade' flutter tool. Retrying in five seconds...
等待0秒钟，按CTRL + C退出...错误:无法发布升级工具".五秒钟后重试...
Waiting for 0 seconds, press CTRL+C to quit ... Error: Unable to 'pub upgrade' flutter tool. Retrying in five seconds...
等待0秒钟，按CTRL + C退出...错误:无法发布升级工具".五秒钟后重试...
Waiting for 0 seconds, press CTRL+C to quit ... Error: Unable to 'pub upgrade' flutter tool. Retrying in five seconds...
推荐答案
首先请确保您的互联网连接正常，如果此问题仍然存在，则可能是由于未正确下载dart sdk而导致的.最简单的解决方案是删除位于 flutter/bin (安装Flutter的位置)，然后运行 flutter doctor
First Make sure you have a working internet connection and if this issue still exists then, this error may be because the dart sdk may have not been properly downloaded.
The simplest solution is to delete the cache folder located in
flutter/bin(location where flutter is installed) and then Run flutter doctor
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