在windows上使用conda安装opencv时出现EEXIST 17错误

我正在尝试在windows计算机上使用conda安装opencv。我正在运行以下命令：

conda install --channel https://conda.anaconda.org/menpo opencv

并获取以下错误：

Solving environment: done

## Package Plan ##
environment location: C:\ProgramData\Anaconda2

added / updated specs:
- opencv

The following NEW packages will be INSTALLED:
opencv: 2.4.11-py27_1 menpo

Proceed ([y]/n)? y
Preparing transaction: done
Verifying transaction: done
Executing transaction: - WARNING conda.gateways.disk:exp_backoff_fn(49): 
Uncaught backoff with errno EEXIST 17
failed

ERROR conda.core.link:_execute(502): An error occurred while installing 
package 'None'.

IOError(13, 'Permission denied')

Attempting to roll back.

Rolling back transaction: done
IOError(13, 'Permission denied')
WindowsError(183, 'Cannot create a file when that file already exists')

The following packages will be DOWNGRADED:
    conda:       4.5.4-py27_0  --> 4.2.16-py27_0
    conda-build: 3.10.5-py27_0 --> 3.9.2-py27_0
Proceed ([y]/n)? y
Preparing transaction: done
Verifying transaction: done
Executing transaction: failed

ERROR conda.core.link:_execute(502): An error occurred while uninstalling 
package 'defaults::conda-build-3.10.5-py27_0'.
WindowsError(5, 'Access is denied')

Attempting to roll back.
Rolling back transaction: done

WindowsError(5, 'Access is denied')

其他人似乎也有类似的问题（）。我找到的解决办法之一是降低康达的评级。我当前使用的是

conda 4.5.4

，当我尝试使用

conda安装conda=4.2

降级时，我得到以下错误：

Solving environment: done

## Package Plan ##
environment location: C:\ProgramData\Anaconda2

added / updated specs:
- opencv

The following NEW packages will be INSTALLED:
opencv: 2.4.11-py27_1 menpo

Proceed ([y]/n)? y
Preparing transaction: done
Verifying transaction: done
Executing transaction: - WARNING conda.gateways.disk:exp_backoff_fn(49): 
Uncaught backoff with errno EEXIST 17
failed

ERROR conda.core.link:_execute(502): An error occurred while installing 
package 'None'.

IOError(13, 'Permission denied')

Attempting to roll back.

Rolling back transaction: done
IOError(13, 'Permission denied')
WindowsError(183, 'Cannot create a file when that file already exists')

The following packages will be DOWNGRADED:
    conda:       4.5.4-py27_0  --> 4.2.16-py27_0
    conda-build: 3.10.5-py27_0 --> 3.9.2-py27_0
Proceed ([y]/n)? y
Preparing transaction: done
Verifying transaction: done
Executing transaction: failed

ERROR conda.core.link:_execute(502): An error occurred while uninstalling 
package 'defaults::conda-build-3.10.5-py27_0'.
WindowsError(5, 'Access is denied')

Attempting to roll back.
Rolling back transaction: done

WindowsError(5, 'Access is denied')

关于这个问题，我发现了以下类似的帖子：

---

但是给出的解决方案并不能解决我的问题。

我在安装和使用

OpenCV

库时也遇到了问题。如果您有这样的问题，您可以尝试：

卸载

opencv

，方法是：

conda-remove--yes-opencv

（如果您安装了，但它不能正常工作）

通过pip安装

OpenCV

：pip安装OpenCV python

---

我认为这是来自

Anaconda

频道的

opencv

的问题。四个月前我遇到了这个问题。这个问题可能现在就解决了

我猜您没有以管理员权限运行此命令！

可能是您的问题与此相关（清空CONDA_垃圾箱的问题）。我也遇到了类似的错误，我最终通过创建一个新环境并安装我想要的包（

py xgboost

）解决了此问题相反，我必须创造一个新的环境，这很有帮助@罗伯特