当我使用下载dgl环境的时候，出现
CondaError: Failed to write to /data/xxx/.conda/pkgs/mkl-2021.4.0-h06a4308_640.conda
errno: 28
[Errno 28] No space left on device
InvalidArchiveError("Error with archive /data/xxx/.conda/pkgs/libgfortran5-11.2.0-h1234567_1/.cph_tmp42_mjil9/pkg-libgfortran5-11.2.0-h1234567_1.tar.zst. You probably need to delete and re-download or re-create this file. Message from libarchive was:\n\nFailed to create dir 'share'")
很明显是没有使用空间了，需要清理一下缓存。于是使用命令 conda clean --all 进行清理。
是的！没看错！我居然吧tempfiles文件和logfile文件都清理了！！！
但是到这我并没有在意，毕竟再次安装dgl成功了。但运行程序发现又出现了新的错误：
INTEL MKL ERROR: /data/xxxx/.conda/envs/regcn/lib/python3.8/site-packages/mkl/../../../libmkl_core.so.1: invalid ELF header.
Intel MKL FATAL ERROR: Cannot load libmkl_core.so.1.
于是我卸载mkl，又进行了重装。结果又说找不到dgl了。
ModuleNotFoundError: No module named 'dgl'
我只能再重新安装dgl。但dgl成功安装之后，又出现了上述的mkl错误，，，出于好奇的心里，我再次卸载mkl，这次错误不一样了，出现了一长串conda环境错误：
Collecting package metadata (repodata.json): failed
>>>>>>>>>>>>>>>>>>>>>> ERROR REPORT <<<<<<<<<<<<<<<<<<<<<<
Traceback (most recent call last):
File "/home/xxx/anaconda3/lib/python3.9/site-packages/conda/core/xxx.py", line 232, in _load
mtime = getmtime(self.cache_path_json)
File "/home/xxx/anaconda3/lib/python3.9/site-packages/conda/core/xxxx.py", line 200, in cache_path_json
...
FileNotFoundError: [Errno 2] No usable temporary directory found in ['/tmp', '/var/tmp', '/usr/tmp', '/data/xxx/我的项目地址']
`$ /home/xxxx/anaconda3/bin/conda uninstall mkl`
environment variables:
CIO_TEST=<not set>
CLASSPATH=.:/usr/lib/jvm/java-8-openjdk-
amd64/lib/dt.jar:/usr/lib/jvm/java-8-openjdk-amd64/lib/tools.jar
CONDA_DEFAULT_ENV=rxxx
CONDA_EXE=/home/xxx/anaconda3/bin/conda
CONDA_PREFIX=/data/xxxxx/.conda/envs/regcn
CONDA_PREFIX_1=/home/xxxxxx/anaconda3
CONDA_PROMPT_MODIFIER=(xxxxx)
CONDA_PYTHON_EXE=/home/xxxx/anaconda3/bin/python
CONDA_ROOT=/home/xxxxx/anaconda3
CONDA_SHLVL=2
CURL_CA_BUNDLE=<not set>
LD_LIBRARY_PATH=/data/xxxxxx/.conda/envs/xxxxx/lib:/usr/local/cuda-10.1/lib64
PATH=/xxxxxxxxxxxxxxxx:
/xxxxxxxxxxxx:/usr/lib/jvm/java-8-openjdk-amd64/bin:/usr/
REQUESTS_CA_BUNDLE=<not set>
SSL_CERT_FILE=<not set>
active environment : xxxxxxxx
active env location : /data/xxxxxxxxx/.conda/envs/regcn
shell level : 2
user config file : /data/xxx/.condarc
populated config files :
conda version : 22.9.0
conda-build version : 3.21.5
python version : 3.9.7.final.0
virtual packages : __cuda=12.0=0
__linux=5.4.0=0
__glibc=2.27=0
__unix=0=0
__archspec=1=x86_64
base environment : /home/xxxxxx/anaconda3
conda av data dir : /home/xxxx/anaconda3/etc/conda
conda av metadata url : None
channel URLs : https://repo.anaconda.com/pkgs/main/linux-64
https://repo.anaconda.com/pkgs/main/noarch
https://repo.anaconda.com/pkgs/r/linux-64
https://repo.anaconda.com/pkgs/r/noarch
package cache : /home/xxxx/anaconda3/pkgs
/data/xxxxxxxxxx/.conda/pkgs
envs directories : /data/xxxxxxxxx/.conda/envs
/home/xxxxxxxxx/anaconda3/envs
platform : linux-64
user-agent : conda/22.9.0 requests/2.28.1 CPython/3.9.7 Linux/5.4.0-152-generic ubuntu/18.04.6 glibc/2.27
UID:GID : 1052:1054
netrc file : None
offline mode : False
An unexpected 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]: y
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by running
$ conda config --set report_errors true
这时候我才发现我的tmp文件没有了！！！
当我conda create -n xxx的时候 同样也会出现上述的错误。。。。
于是我修改了环境变量
nano ~/.bashrc 修改环境
在最后一行加入 export TMPDIR=/你的tmp地址
source ~/.bashrc 重启环境
检查
成功解决conda环境问题