Collecting package metadata (current_repodata.json): done Solving environment: done

问题

在mac终端中，用conda创建虚拟环境时，出现以下提示：

 ~ % conda create --name gat python=3.5.2
Collecting package metadata (current_repodata.json): done
Solving environment: done
~ %

即直接结束，无法安装。

原因

用 conda clean --all 查看，在缓存文件夹 Cache location: xxx/.conda/pkgs 或者 xxx/opt/anaconda3/pkgs 里，有 python-3.5.4-0 ，因为以前在conda下载包的过程中被中止了，造成无向的缓存。

Cache location: /Users/yeziand01/opt/anaconda3/pkgs
Will remove the following tarballs:

/Users/yeziand01/opt/anaconda3/pkgs
-----------------------------------

jinja2-2.9.6-py35_0                          1.6 MB
python-3.5.4-0                              41.3 MB
ipykernel-4.6.1-py35_0                       603 KB
widgetsnbextension-3.0.2-py35_0             12.2 MB
anaconda-client-1.6.3-py35_0                 640 KB
blas-1.0-mkl                                  14 KB
html5lib-0.9999999-py35_0                    904 KB
jedi-0.10.2-py35_2                           1.1 MB
pip-9.0.1-py34_1                             6.4 MB
ipython_genutils-0.2.0-py35_0                157 KB
nbpresent-3.0.2-py35_0                       1.8 MB
pytz-2017.2-py35_0                           1.0 MB
six-1.10.0-py35_0                             57 KB
jupyter_client-5.1.0-py35_0                  556 KB
certifi-2016.2.28-py27_0                     672 KB
appnope-0.1.0-py35_0                          11 KB
wcwidth-0.1.7-py35_0                          74 KB
pickleshare-0.7.4-py35_0                      24 KB
jsonschema-2.6.0-py35_0                      301 KB
decorator-4.1.2-py35_0                        59 KB
bleach-1.5.0-py35_0                           61 KB
ipython-6.1.0-py35_0                         4.2 MB
docutils-0.16-py37_0                         3.1 MB
yaml-0.1.6-0                                 501 KB
simplegeneric-0.8.1-py35_1                    20 KB
pexpect-4.2.1-py35_0                         323 KB
entrypoints-0.2.3-py35_0                      39 KB
mistune-0.7.4-py35_0                         707 KB
ptyprocess-0.5.2-py35_0                       92 KB
_nb_ext_conf-0.4.0-py35_1                     24 KB
pyyaml-3.12-py35_0                           567 KB
jupyter_core-4.3.0-py35_0                    329 KB
clyent-1.2.2-py35_0                           48 KB
wheel-0.29.0-py35_0                          290 KB
testpath-0.3.1-py35_0                         64 KB
pandocfilters-1.4.2-py35_0                    51 KB
traitlets-4.3.2-py35_0                       659 KB
path.py-10.3.1-py35_0                        222 KB
python-dateutil-2.6.1-py35_0                 556 KB
markupsafe-1.0-py35_0                         91 KB
pyzmq-16.0.2-py35_0                          2.4 MB
terminado-0.6-py35_0                          61 KB
ipywidgets-6.0.0-py35_0                      318 KB
notebook-5.0.0-py35_0                       21.4 MB
tornado-4.5.2-py35_0                         3.0 MB
pygments-2.2.0-py35_0                        5.5 MB
prompt_toolkit-1.0.15-py35_0                 1.6 MB
nb_conda-2.2.0-py35_0                        175 KB
setuptools-36.4.0-py35_1                     2.1 MB
certifi-2016.2.28-py35_0                     672 KB
nb_conda_kernels-2.1.0-py35_0                 97 KB
requests-2.14.2-py35_0                       2.7 MB
nbformat-4.4.0-py35_0                        599 KB
nb_anacondacloud-1.4.0-py35_0                125 KB
pip-9.0.1-py35_1                             6.4 MB
nbconvert-5.2.1-py35_0                       1.4 MB

---------------------------------------------------
Total:                                     129.8 MB

解决

conda clean --all #清理无用的包或安装包

参考

https://blog.csdn.net/qq_41373854/article/details/106200588