conda - 更新 conda 时出现断言错误

Question

我尝试使用以下命令更新 conda:

~$ conda update conda

它输出以下消息:

WARNING conda.base.context:use_only_tar_bz2(632): Conda is constrained to only 
using the old .tar.bz2 file format because you have conda-build installed, 
and it is <3.18.3.  Update or remove conda-build to get smaller downloads 
and faster extractions.
Collecting package metadata (repodata.json): done
Solving environment: - 

The environment is inconsistent, please check the package plan carefully

The following packages are causing the inconsistency:

- defaults/linux-64::cytoolz==0.9.0.1=py37h14c3975_1

- and around 100 more

Preparing transaction: done

Verifying transaction: done

Executing transaction: done

ERROR conda.core.link:_execute(637): An error occurred while installing 
package 'None'.

AssertionError()

Attempting to roll back.

Rolling back transaction: done

AssertionError()

我也试过

~$ conda update --all

但它给了我和以前一样的错误。

Answer 1

关于这个问题，我找到了一个没有很好解释但解决问题的解决方案:

第一:使用命令:

~$ conda install anaconda 

这就解决了环境不一致的问题。

第二:使用命令:

 ~$ conda update conda

该命令将毫无问题地执行，并且 conda 将被探测更新。