我正在尝试在linux机器上安装snakemake。运行conda install -c bioconda snakemake时出现错误：
-bash-4.2 $ conda install -c bioconda snakemake 解决环境：失败 不满意的错误：发现以下规范存在冲突： - backports.functools_lru_cache - snakemake 使用“conda info”查看每个包的依赖关系。
Python版本为3.4.5。操作系统信息：
lsb_release -a
LSB Version: :core-4.1-amd64:core-4.1-noarch:cxx-4.1-amd64:cxx-4.1-
noarch:desktop-4.1-amd64:desktop-4.1-noarch:languages-4.1-
amd64:languages-4.1-noarch:printing-4.1-amd64:printing-4.1-noarch
Distributor ID: CentOS
Description: CentOS Linux release 7.3.1611 (Core)
Release: 7.3.1611
Codename: Core
任何建议都将不胜感激
更新
我尝试conda install -c conda-forge backports，它已成功安装，但没有帮助。
更新
我之前也尝试过使用long命令：conda install -c bioconda -c conda-forge snakemake但是因为某些依赖项冲突失败了。现在我再次尝试了，并获得了另一种unexpected error：
-bash-4.2$ conda install -c bioconda -c conda-forge snakemake
Solving environment: failed
# >>>>>>>>>>>>>>>>>>>>>> ERROR REPORT <<<<<<<<<<<<<<<<<<<<<<
Traceback (most recent call last):
File "/sfs/nfs/blue/nv4e/anaconda2/lib/python2.7/site-packages/conda/exceptions.py", line 819, in __call__
return func(*args, **kwargs)
File "/sfs/nfs/blue/nv4e/anaconda2/lib/python2.7/site-packages/conda/cli/main.py", line 78, in _main
exit_code = do_call(args, p)
File "/sfs/nfs/blue/nv4e/anaconda2/lib/python2.7/site-packages/conda/cli/conda_argparse.py", line 77, in do_call
exit_code = getattr(module, func_name)(args, parser)
File "/sfs/nfs/blue/nv4e/anaconda2/lib/python2.7/site-packages/conda/cli/main_install.py", line 11, in execute
install(args, parser, 'install')
File "/sfs/nfs/blue/nv4e/anaconda2/lib/python2.7/site-packages/conda/cli/install.py", line 235, in install
force_reinstall=context.force,
File "/sfs/nfs/blue/nv4e/anaconda2/lib/python2.7/site-packages/conda/core/solve.py", line 505, in solve_for_transaction
force_remove, force_reinstall)
File "/sfs/nfs/blue/nv4e/anaconda2/lib/python2.7/site-packages/conda/core/solve.py", line 438, in solve_for_diff
final_precs = self.solve_final_state(deps_modifier, prune, ignore_pinned, force_remove)
File "/sfs/nfs/blue/nv4e/anaconda2/lib/python2.7/site-packages/conda/core/solve.py", line 179, in solve_final_state
index, r = self._prepare(prepared_specs)
File "/sfs/nfs/blue/nv4e/anaconda2/lib/python2.7/site-packages/conda/core/solve.py", line 560, in _prepare
self.subdirs, prepared_specs)
File "/sfs/nfs/blue/nv4e/anaconda2/lib/python2.7/site-packages/conda/core/index.py", line 215, in get_reduced_index
new_records = query_all(spec)
File "/sfs/nfs/blue/nv4e/anaconda2/lib/python2.7/site-packages/conda/core/index.py", line 184, in query_all
return tuple(concat(future.result() for future in as_completed(futures)))
File "/sfs/nfs/blue/nv4e/anaconda2/lib/python2.7/site-packages/conda/core/subdir_data.py", line 94, in query
self.load()
File "/sfs/nfs/blue/nv4e/anaconda2/lib/python2.7/site-packages/conda/core/subdir_data.py", line 148, in load
_internal_state = self._load()
File "/sfs/nfs/blue/nv4e/anaconda2/lib/python2.7/site-packages/conda/core/subdir_data.py", line 222, in _load
mod_etag_headers.get('_mod'))
File "/sfs/nfs/blue/nv4e/anaconda2/lib/python2.7/site-packages/conda/core/subdir_data.py", line 269, in _read_local_repdata
_internal_state = self._process_raw_repodata_str(raw_repodata_str)
File "/sfs/nfs/blue/nv4e/anaconda2/lib/python2.7/site-packages/conda/core/subdir_data.py", line 306, in _process_raw_repodata_str
json_obj = json.loads(raw_repodata_str or '{}')
File "/sfs/nfs/blue/nv4e/anaconda2/lib/python2.7/json/__init__.py", line 339, in loads
return _default_decoder.decode(s)
File "/sfs/nfs/blue/nv4e/anaconda2/lib/python2.7/json/decoder.py", line 364, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "/sfs/nfs/blue/nv4e/anaconda2/lib/python2.7/json/decoder.py", line 380, in raw_decode
obj, end = self.scan_once(s, idx)
ValueError: Expecting : delimiter: line 1 column 8388609 (char 8388608)
`$ /sfs/nfs/blue/nv4e/anaconda2/bin/conda install -c bioconda -c conda-forge snakemake`
environment variables:
CIO_TEST=<not set>
CONDA_ROOT=/sfs/nfs/blue/nv4e/anaconda2
LD_INCLUDE_PATH=/opt/slurm/17.02.1b/include:/share/rci_apps/common/inc
LD_LIBRARY_PATH=/opt/slurm/17.02.1b/lib:/share/rci_apps/common/lib64
MANPATH=/usr/share/lmod/lmod/share/man::
MODULEPATH=/apps/modulefiles/standard/core:/apps/modulefiles/standard/
toolchains
PATH=/scratch/nv4e/cellranger:/scratch/nv4e/bcl2fastq/build/bin:
/scratch/nv
4e/spark/bin:/scratch/nv4e/scala/bin:/sfs/nfs/blue/nv4e/private/bin:/s
fs/nfs/blue/nv4e/anaconda2/bin:/sfs/nfs/blue/nv4e/.local/bin:/usr/lib6
4/qt-3.3/bin:/usr/local/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/opt/sl
urm/current/bin:/opt/slurm/current/sbin:/opt/singularity/current/bin:/
opt/rci/bin:/opt/rci/sbin:/opt/nhc/current/sbin:/share/rci_apps/common
/bin:/share/resources/HPCtools/
QT_PLUGIN_PATH=/usr/lib64/kde4/plugins:/usr/lib/kde4/plugins
REQUESTS_CA_BUNDLE=<not set>
SSL_CERT_FILE=<not set>
active environment : None
user config file : /home/nv4e/.condarc
populated config files :
conda version : 4.5.4
conda-build version : 3.0.27
python version : 2.7.14.final.0
base environment : /sfs/nfs/blue/nv4e/anaconda2 (writable)
channel URLs : https://conda.anaconda.org/bioconda/linux-64
https://conda.anaconda.org/bioconda/noarch
https://conda.anaconda.org/conda-forge/linux-64
https://conda.anaconda.org/conda-forge/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 : /sfs/nfs/blue/nv4e/anaconda2/pkgs
/home/nv4e/.conda/pkgs
envs directories : /sfs/nfs/blue/nv4e/anaconda2/envs
/home/nv4e/.conda/envs
platform : linux-64
user-agent : conda/4.5.4 requests/2.18.4 CPython/2.7.14 Linux/3.10.0-514.21.2.el7.x86_64 centos/7 glibc/2.17
UID:GID : 1096641:100
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]:
答案 0 :(得分：0)
如果您按照官方安装说明操作，它应该可以正常工作：http://snakemake.readthedocs.io/en/stable/getting_started/installation.html#installation-via-conda
在安装命令中需要-c bioconda和-c conda-forge，因为某些依赖项来自conda-forge。
答案 1 :(得分：0)
它由（SLURM群集）解决：
module load anaconda3
conda create -n snakemake
source activate snakemake
conda install -c bioconda snakemake
Use
module load anaconda3
source activate snakemake