conda用yaml文件创建环境，目标计算机连接不上

Question

Channels:
 - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free
 - defaults
 - msys2
 - conda-forge
 - pytorch
 - https://mirrors.ustc.edu.cn/anaconda/pkgs/free
 - https://mirrors.ustc.edu.cn/anaconda/cloud/menpo
 - https://mirrors.ustc.edu.cn/anaconda/cloud/bioconda
 - https://mirrors.ustc.edu.cn/anaconda/cloud/msys2
 - https://mirrors.ustc.edu.cn/anaconda/cloud/conda-forge
Platform: win-64
Collecting package metadata (repodata.json): / Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x000002120D8187D0>: Failed to establish a new connection: [WinError 10061] 由于目标计算机积极拒绝，无法连接。')': /anaconda/pkgs/main/noarch/repodata.json.zst

\ Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x000002120D818650>: Failed to establish a new connection: [WinError 10061] 由于目标计算机积极拒绝，无法连接。')': /anaconda/pkgs/main/noarch/repodata.json.zst

/ Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x000002120DC88ED0>: Failed to establish a new connection: [WinError 10061] 由于目标计算机积极拒绝，无法连接。')': /anaconda/pkgs/main/noarch/repodata.json.zst

\ Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x000002120DCDE050>: Failed to establish a new connection: [WinError 10061] 由于目标计算机积极拒绝，无法连接。')': /anaconda/pkgs/free/noarch/repodata.json

Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x000002120DCCF810>: Failed to establish a new connection: [WinError 10061] 由于目标计算机积极拒绝，无法连接。')': /anaconda/pkgs/free/win-64/repodata.json

\ Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x000002120DC9D090>: Failed to establish a new connection: [WinError 10061] 由于目标计算机积极拒绝，无法连接。')': /anaconda/cloud/menpo/win-64/repodata.json

Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x000002120DCEC610>: Failed to establish a new connection: [WinError 10061] 由于目标计算机积极拒绝，无法连接。')': /anaconda/cloud/menpo/noarch/repodata.json

| Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x000002120DCECC90>: Failed to establish a new connection: [WinError 10061] 由于目标计算机积极拒绝，无法连接。')': /anaconda/cloud/bioconda/win-64/repodata.json

/ Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x000002120DCCAB90>: Failed to establish a new connection: [WinError 10061] 由于目标计算机积极拒绝，无法连接。')': /anaconda/cloud/bioconda/noarch/repodata.json

Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x000002120DCEDF10>: Failed to establish a new connection: [WinError 10061] 由于目标计算机积极拒绝，无法连接。')': /anaconda/cloud/msys2/noarch/repodata.json

- Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x000002120DCDC3D0>: Failed to establish a new connection: [WinError 10061] 由于目标计算机积极拒绝，无法连接。')': /anaconda/cloud/msys2/win-64/repodata.json

/ Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x000002120DCDDF50>: Failed to establish a new connection: [WinError 10061] 由于目标计算机积极拒绝，无法连接。')': /anaconda/cloud/conda-forge/noarch/repodata.json

/ Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x000002120DC8AA90>: Failed to establish a new connection: [WinError 10061] 由于目标计算机积极拒绝，无法连接。')': /anaconda/pkgs/free/noarch/repodata.json

- Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x000002120DC89850>: Failed to establish a new connection: [WinError 10061] 由于目标计算机积极拒绝，无法连接。')': /anaconda/pkgs/free/win-64/repodata.json

/ Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x000002120DC88B50>: Failed to establish a new connection: [WinError 10061] 由于目标计算机积极拒绝，无法连接。')': /anaconda/cloud/menpo/win-64/repodata.json

Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x000002120DC885D0>: Failed to establish a new connection: [WinError 10061] 由于目标计算机积极拒绝，无法连接。')': /anaconda/cloud/menpo/noarch/repodata.json

- Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x000002120DC76C90>: Failed to establish a new connection: [WinError 10061] 由于目标计算机积极拒绝，无法连接。')': /anaconda/cloud/bioconda/noarch/repodata.json

Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x000002120DC75610>: Failed to establish a new connection: [WinError 10061] 由于目标计算机积极拒绝，无法连接。')': /anaconda/cloud/bioconda/win-64/repodata.json

\ Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x000002120DCF7BD0>: Failed to establish a new connection: [WinError 10061] 由于目标计算机积极拒绝，无法连接。')': /anaconda/cloud/msys2/noarch/repodata.json

| Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x000002120DCF7310>: Failed to establish a new connection: [WinError 10061] 由于目标计算机积极拒绝，无法连接。')': /anaconda/cloud/msys2/win-64/repodata.json

\ Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x000002120DCF67D0>: Failed to establish a new connection: [WinError 10061] 由于目标计算机积极拒绝，无法连接。')': /anaconda/cloud/conda-forge/noarch/repodata.json

- Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x000002120DCDEC10>: Failed to establish a new connection: [WinError 10061] 由于目标计算机积极拒绝，无法连接。')': /anaconda/pkgs/main/win-64/repodata.json

\ Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x000002120DD04890>: Failed to establish a new connection: [WinError 10061] 由于目标计算机积极拒绝，无法连接。')': /anaconda/pkgs/free/noarch/repodata.json

Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x000002120DD05B50>: Failed to establish a new connection: [WinError 10061] 由于目标计算机积极拒绝，无法连接。')': /anaconda/pkgs/free/win-64/repodata.json

- Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x000002120DD05290>: Failed to establish a new connection: [WinError 10061] 由于目标计算机积极拒绝，无法连接。')': /anaconda/cloud/menpo/noarch/repodata.json

\ Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x000002120DD04190>: Failed to establish a new connection: [WinError 10061] 由于目标计算机积极拒绝，无法连接。')': /anaconda/cloud/menpo/win-64/repodata.json

| Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x000002120DD04ED0>: Failed to establish a new connection: [WinError 10061] 由于目标计算机积极拒绝，无法连接。')': /anaconda/cloud/bioconda/noarch/repodata.json

Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x000002120DD07E50>: Failed to establish a new connection: [WinError 10061] 由于目标计算机积极拒绝，无法连接。')': /anaconda/cloud/bioconda/win-64/repodata.json

/ Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x000002120DD0C2D0>: Failed to establish a new connection: [WinError 10061] 由于目标计算机积极拒绝，无法连接。')': /anaconda/cloud/msys2/noarch/repodata.json

Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x000002120DD0C710>: Failed to establish a new connection: [WinError 10061] 由于目标计算机积极拒绝，无法连接。')': /anaconda/cloud/msys2/win-64/repodata.json

| Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x000002120DD0CB50>: Failed to establish a new connection: [WinError 10061] 由于目标计算机积极拒绝，无法连接。')': /anaconda/cloud/conda-forge/noarch/repodata.json

| Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x000002120DD0E390>: Failed to establish a new connection: [WinError 10061] 由于目标计算机积极拒绝，无法连接。')': /anaconda/pkgs/main/win-64/repodata.json

/ Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x000002120DD1AE50>: Failed to establish a new connection: [WinError 10061] 由于目标计算机积极拒绝，无法连接。')': /anaconda/pkgs/main/win-64/repodata.json

failed

CondaHTTPError: HTTP 000 CONNECTION FAILED for url <https://mirrors.ustc.edu.cn/anaconda/pkgs/free/win-64/repodata.json>
Elapsed: -

An HTTP error occurred when trying to retrieve this URL.
HTTP errors are often intermittent, and a simple retry will get you on your way.
'https//mirrors.ustc.edu.cn/anaconda/pkgs/free/win-64'

Answer 1

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遇到在使用conda通过yaml文件创建环境时出现连接失败的问题，通常是网络配置不当、代理设置错误或镜像源不可达导致的。你提供的日志显示conda尝试从多个镜像源获取包信息但均因网络连接被拒绝而失败。

解决此问题有以下几个步骤：

1. 检查网络连接

确保你的计算机可以正常访问互联网。尝试打开网页或ping一些公共的IP地址（如8.8.8.8）检查网络是否连通。

2. 验证镜像源可用性

在命令行中尝试直接访问你的镜像源URL，例如：

curl -L https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/

或

wget --spider https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/

确认这些URL是否能正确响应。

3. 更改镜像源

如果你发现某些镜像源不可达，考虑更换为其他更稳定的镜像源。例如，可以将channels中的源替换为阿里云的镜像源：

channels:
  - https://mirrors.aliyun.com/anaconda/pkgs/free/
  - defaults
  - conda-forge

4. 清理conda缓存

有时候，旧的缓存数据可能会干扰conda的正常工作。运行以下命令清理缓存：

conda clean --all

5. 代理设置

如果你的网络环境中使用了代理服务器，确保conda配置文件（.condarc）中设置了正确的代理信息。例如：

proxy_servers:
  http: http://your_proxy_server:port
  https: https://your_proxy_server:port

6. 使用离线包

如果上述方法都无法解决问题，可以考虑下载所有需要的包并使用离线方式安装。这通常涉及到手动下载所需的.tar.bz2文件，并使用conda create命令指定本地包路径创建环境。

7. 重试创建环境

完成上述步骤后，再次尝试使用yaml文件创建环境：

conda env create -f environment.yml

如果仍然遇到问题，可能需要进一步排查网络环境或联系镜像源提供商确认服务状态。希望以上步骤能帮助你解决问题。