我正在尝试在anaconda python（版本3.6.1自定义64位，conda版本4.5.1）中创建虚拟环境，但是由于某种原因而失败？我用来创建环境的代码如下所示。
henry@HB:~$ conda create -n env_zipline python=3.6
然后（在短暂的延迟后）产生了以下错误：
Solving environment: failed
# >>>>>>>>>>>>>>>>>>>>>> ERROR REPORT <<<<<<<<<<<<<<<<<<<<<<
`$ /home/henry/anaconda3/bin/conda create -n env_zipline python=3.6`
environment variables:
CIO_TEST=<not set>
COMPIZ_BIN_PATH=/usr/bin/
CONDA_ROOT=/home/henry/anaconda3
DEFAULTS_PATH=/usr/share/gconf/ubuntu.default.path
MANDATORY_PATH=/usr/share/gconf/ubuntu.mandatory.path
PATH=/home/henry/Google App Credentials/google-cloud-sdk/bin:/home/henry/.sdk
man/candidates/java/current/bin:/home/henry/anaconda3/bin:~/anaconda/bi
n:~/anaconda/bin:~/anaconda/bin:/home/henry/bin:/home/henry/.local/bin:/
usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
:/usr/local/games:/snap/bin
REQUESTS_CA_BUNDLE=<not set>
SSL_CERT_FILE=<not set>
XDG_SEAT_PATH=/org/freedesktop/DisplayManager/Seat0
XDG_SESSION_PATH=/org/freedesktop/DisplayManager/Session0
active environment : None
user config file : /home/henry/.condarc
populated config files : /home/henry/.condarc
conda version : 4.5.1
conda-build version : not installed
python version : 3.6.1.final.0
base environment : /home/henry/anaconda3 (writable)
channel URLs : https://conda.anaconda.org/conda-forge/linux-64
https://conda.anaconda.org/conda-forge/noarch
https://conda.anaconda.org/conda-forg/linux-64
https://conda.anaconda.org/conda-forg/noarch
https://repo.anaconda.com/pkgs/main/linux-64
https://repo.anaconda.com/pkgs/main/noarch
https://repo.anaconda.com/pkgs/free/linux-64
https://repo.anaconda.com/pkgs/free/noarch
https://repo.anaconda.com/pkgs/r/linux-64
https://repo.anaconda.com/pkgs/r/noarch
https://repo.anaconda.com/pkgs/pro/linux-64
https://repo.anaconda.com/pkgs/pro/noarch
package cache : /home/henry/anaconda3/pkgs
/home/henry/.conda/pkgs
envs directories : /home/henry/anaconda3/envs
/home/henry/.conda/envs
platform : linux-64
user-agent : conda/4.5.1 requests/2.14.2 CPython/3.6.1 Linux/4.15.0-24-generic ubuntu/16.04 glibc/2.23
UID:GID : 1000:1000
netrc file : None
offline mode : False
V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V V
CondaHTTPError: HTTP 404 NOT FOUND for url <https://conda.anaconda.org/conda-forg/noarch/repodata.json>
Elapsed: 00:00.120726
CF-RAY: 43ede6e4ff8469ef-LHR
The remote server could not find the noarch directory for the
requested channel with url: https://conda.anaconda.org/conda-forg
As of conda 4.3, a valid channel must contain a `noarch/repodata.json` and
associated `noarch/repodata.json.bz2` file, even if `noarch/repodata.json` is
empty. please request that the channel administrator create
`noarch/repodata.json` and associated `noarch/repodata.json.bz2` files.
$ mkdir noarch
$ echo '{}' > noarch/repodata.json
$ bzip2 -k noarch/repodata.json
You will need to adjust your conda configuration to proceed.
Use `conda config --show channels` to view your configuration's current state.
Further configuration help can be found at <https://conda.io/docs/config.html>.
A reportable application error has occurred. Conda has prepared the above report.
If submitted, this report will be used by core maintainers to improve
future releases of conda.
Would you like conda to send this report to the core maintainers?
[y/N]:
当我进入表演频道时，我得到：
henry@HB:~$ conda config --show channels
channels:
- conda-forge
- conda-forg
- defaults
有人可以解释吗