阿里巴巴开源镜像站-OPSX镜像站-阿里云开发者社区阿里巴巴开源镜像站,免费提供Linux镜像下载服务,拥有Ubuntu、CentOS、Deepin、MongoDB、Apache、Maven、Composer等多种开源软件镜像源,此外还提供域名解析DNS、网络授时NTP等服务,致力于为互联网用户提供全面,高效和稳定的基础服务。https://developer.aliyun.com/mirror/ 清华...
问题描述:出现Failed to fetch http://….. 问题原因:一般是由于直接使用国外的源无法连接的原因导致的 解决方案:直接替换成国内的源即可 (1)执行备份命令:sudo cp /etc/apt/sources.list /etc/apt/sources.list.old (2)打开文件:sudo vim /etc/apt/sources.list ...
下面是一个使用requests库进行API请求的代码示例: importrequestsdefget_data(url):response=requests.get(url)ifresponse.status_code==200:returnresponse.json()else:returnNonedata=get_data("ifdataisnotNone:print(data)else:print("Failed to fetch data") 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11....
W:https://mirrors.aliyun.com/debian/dists/bullseye-updates/InRelease:No system certificates available. Try installing ca-certificates. W: Failed to fetchhttps://mirrors.aliyun.com/debian/dists/bullseye/InReleaseCertificate verification failed: The certificate is NOT trusted. The certificate issuer i...
Get:34 http://mirrors.tuna.tsinghua.edu.cn/ubuntu xenial-updates/main amd64 unattended-upgrades all 1.1ubuntu1.18.04.7~16.04.6 [42.1 kB] Fetched 15.5 MB in 4s (3363 kB/s) E: Failed to fetch http://mirrors.tuna.tsinghua.edu.cn/ubuntu/pool/main/d/distro-info-data/distro-info-data_0.28...
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/precise-updates/multiverse/binary-i386/Packages Something wicked happened resolving 'archive.ubuntu.com:http' (-5 - No address associated with hostname) W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/precise-updates/main/i18...
W: Failed to fetch http://mirrors.ustc.edu.cn/raspbian/raspbian/dists/stretch/InRelease Temporary failure resolving 'mirrors.ustc.edu.cn' W: Failed to fetch http://mirrors.ustc.edu.cn/archive.raspberrypi.org/dists/stretch/InRelease Temporary failure resolving 'mirrors.ustc.edu.cn' ...
Failed to fetch http://mirrors. aliyun. com/ubuntu-ports/dists/bionic/InRelease Temporary failure resolving ' mirrors. aliyun. com' 这个无法连接有可能是网络不好,登录百度或者ping一下看看网络连接 微信公众号 欢迎大家关注我的个人公众号,现阶段主要总结Robomaster相关的计算机视觉知识。 公众号名称:三丰杂...
提示> W: Failed to fetchhttp://mirrors.ustc.edu.cn/archi ... nary-armhf/Packages404 Not ...
执行时发现很多下载很慢,本人执行耗时近两个小时最后还出现了六个连接失败或者超时的错误:Failed to fetch...Connection time out/Connection failed。这些源基本上是第三方软件的源,如果知道它暂时没用的话可以直接去/etc/apt/sources.list.d里面删除对应文件,本人小白不清楚,能下载尽量下载。 查了...