遇到问题:安装2021版本后无法打开Anaconda Navigator
解决方案:使用管理员身份打开Avaconda Prompt,输入conda update anaconda-navigator
遇到问题:报错:
#安装在d盘
Fetching package metadata ...
CondaHTTPError: HTTP 000 CONNECTION FAILED for url
Elapsed: -
分析是国内镜像源问题
解决方案:添加镜像文件
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。
阿里源
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
清华源
channels:
- http://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/
show_channel_urls: true
default_channels:
- http://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main
- http://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/r
- http://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/msys2
custom_channels:
conda-forge: http://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
msys2: http://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
bioconda: http://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
menpo: http://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
pytorch: http://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
pytorch-lts: http://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
simpleitk: http://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud
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The following packages will be SUPERSEDED by a higher-priority channel: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',)
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
pip安装包功能
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