#安装在d盘 HTTP 000 CONNECTION FAILED for url <https://repo.anaconda.com/pkgs/main/win-64/current_repodata.json>
分析是国内镜像源问题
Linux用户可以通过修改用户目录下的 .condarc 文件。
Windows 用户无法直接创建名为 .condarc 的文件,可先执行 conda config --set show_channel_urls yes 生成该文件之后再修改。
channels: - defaults show_channel_urls: true default_channels: - http://mirrors.aliyun.com/anaconda/pkgs/main - http://mirrors.aliyun.com/anaconda/pkgs/r - http://mirrors.aliyun.com/anaconda/pkgs/msys2 custom_channels: conda-forge: http://mirrors.aliyun.com/anaconda/cloud msys2: http://mirrors.aliyun.com/anaconda/cloud bioconda: http://mirrors.aliyun.com/anaconda/cloud menpo: http://mirrors.aliyun.com/anaconda/cloud pytorch: http://mirrors.aliyun.com/anaconda/cloud simpleitk: http://mirrors.aliyun.com/anaconda/cloud ssl_verify: false
注:1.由于更新过快难以同步,我们不同步pytorch-nightly, pytorch-nightly-cpu, ignite-nightly这三个包;
2.最后一行是酌情加上去的,此处根据具体情况考虑是否增加
再次执行语句conda update anaconda-navigator
done 可以连网更新
(base) C:\Windows\system32>conda update anaconda-navigator Collecting package metadata (current_repodata.json): done Solving environment: done ## Package Plan ## environment location: D:\Avaconda added / updated specs: - anaconda-navigator The following packages will be downloaded: package | build ---------------------------|----------------- anaconda-navigator-2.1.1 | py39_0 5.4 MB defaults ------------------------------------------------------------ Total: 5.4 MB The following packages will be SUPERSEDED by a higher-priority channel: anaconda-navigator pkgs/main --> anaconda/pkgs/main Proceed ([y]/n)?
输入y执行,遇到问题:
Proceed ([y]/n)? y Downloading and Extracting Packages anaconda-navigator-2 | 5.4 MB | | 0% [Errno 2] No such file or directory: 'D:\\Avaconda\\pkgs\\anaconda-navigator-2.1.1-py39_0.conda' 系统找不到指定的路径。 系统找不到指定的路径。
上网寻找解决方案,有博主说添加路径,但是在安装时候已经添加过;于是卸载2021版本,重新下载安装Anaconda3,再次尝试
能够正常打开Anaconda Navigator,使用管理员身份打开Avaconda Prompt,输入conda update anaconda-navigator,报错:
ERROR conda.core.link:_execute_actions(337): An error occurred while installing package 'defaults::tqdm-4.62.3-pyhd3eb1b0_1'. CondaError: Cannot link a source that does not exist. D:\Anaconda\Scripts\conda.exe Running `conda clean --packages` may resolve your problem. Attempting to roll back. CondaError: Cannot link a source that does not exist. D:\Anaconda\Scripts\conda.exe Running `conda clean --packages` may resolve your problem.
重新添加了一遍路径,没能解决问题。
尝试conda clean --all --yes
再运行conda update conda,不再出现相同error,成功更新。
执行以下语句,安装opencv包:
conda install -c https://conda.anaconda.org/menpo opencv
记录一下成功时刻:
Downloading and Extracting Packages python-3.6.13 | 17.7 MB | ###########################################################################9 | 100% WARNING conda.gateways.disk.delete:unlink_or_rename_to_trash(144): Could not remove or rename D:\Anaconda\pkgs\python-3.6.13-h3758d61_0\DLLs\tcl86t.dll. Please remove this file manually (you may need to reboot to free file handles) WARNING conda.gateways.disk.delete:unlink_or_rename_to_trash(144): Could not remove or rename D:\Anaconda\pkgs\python-3.6.13-h3758d61_0\DLLs\tcl86t.dll. Please remove this file manually (you may need to reboot to free file handles) python-3.6.13 | 17.7 MB | ############################################################################ | 100% TypeError('not all arguments converted during string formatting',)
/*看到100%好感动呜呜呜呜!为了这三个done我折腾了至少一整天!!*/ Downloading and Extracting Packages zstd-1.4.9 | 1.3 MB | ############################################################################################## | 100% opencv-3.3.1 | 96.7 MB | ############################################################################################## | 100% lz4-c-1.9.3 | 141 KB | ############################################################################################## | 100% xz-5.2.5 | 333 KB | ############################################################################################## | 100% openssl-1.0.2u | 5.8 MB | ############################################################################################## | 100% libtiff-4.2.0 | 1.1 MB | ############################################################################################## | 100% Preparing transaction: done Verifying transaction: done Executing transaction: done
打开CMD输入:python
import cv2
print(cv2.version)
如果输出版本则证明安装成功
python Python 3.6.3 |Anaconda, Inc.| (default, Oct 15 2017, 03:27:45) [MSC v.1900 64 bit (AMD64)] on win32 Type "help", "copyright", "credits" or "license" for more information. >>> import cv2 >>> print(cv2.__version__) 3.3.1
搞定!撒花!
在文件搜索框输入%APPDATA%→出现C:\Users***\AppData\Roaming→查看是否有pip文件夹;
若有,点进去看是否有文件:pip.ini
若没有,依次新建文件夹pip,以记事本新建pip文件并重命名为pip.ini
点开,修改内容为:
[global] timeout = 6000 index-url=http://mirrors.aliyun.com/pypi/simple/ [install] trusted-host=mirrors.aliyun.com
PS:第三行可以根据需要修改为之前步骤中选择的镜像地址,这里选择了阿里云
保存pip文件