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.
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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