chrishkchris commented on issue #623: Some consultations using the conda build in singa/tool/conda/singa URL: https://github.com/apache/singa/issues/623#issuecomment-596209082 Sorry, I cannot understand the error due to build lock, the problem also exists after upgrading conda-build ``` dcsysh@panda:~/singa/tool/conda/singa$ conda-build -c conda-forge . --python 3.6 No numpy version specified in conda_build_config.yaml. Falling back to default numpy value of 1.11 WARNING:conda_build.metadata:No numpy version specified in conda_build_config.yaml. Falling back to default numpy value of 1.11 Copying /home/dcsysh/singa to /home/dcsysh/anaconda3/conda-bld/singa_1583660203405/work/ Traceback (most recent call last): File "/home/dcsysh/anaconda3/bin/conda-build", line 11, in <module> sys.exit(main()) File "/home/dcsysh/anaconda3/lib/python3.6/site-packages/conda_build/cli/main_build.py", line 469, in main execute(sys.argv[1:]) File "/home/dcsysh/anaconda3/lib/python3.6/site-packages/conda_build/cli/main_build.py", line 460, in execute verify=args.verify, variants=args.variants) File "/home/dcsysh/anaconda3/lib/python3.6/site-packages/conda_build/api.py", line 209, in build notest=notest, need_source_download=need_source_download, variants=variants) File "/home/dcsysh/anaconda3/lib/python3.6/site-packages/conda_build/build.py", line 2322, in build_tree bypass_env_check=True) File "/home/dcsysh/anaconda3/lib/python3.6/site-packages/conda_build/render.py", line 802, in render_recipe try_download(m, no_download_source=no_download_source) File "/home/dcsysh/anaconda3/lib/python3.6/site-packages/conda_build/render.py", line 628, in try_download source.provide(metadata) File "/home/dcsysh/anaconda3/lib/python3.6/site-packages/conda_build/source.py", line 691, in provide locking=metadata.config.locking, clobber=True) File "/home/dcsysh/anaconda3/lib/python3.6/site-packages/conda_build/utils.py", line 551, in copy_into merge_tree(src, dst, symlinks, timeout=timeout, lock=lock, locking=locking, clobber=clobber) File "/home/dcsysh/anaconda3/lib/python3.6/site-packages/conda_build/utils.py", line 668, in merge_tree with try_acquire_locks(locks, timeout): File "/home/dcsysh/anaconda3/lib/python3.6/contextlib.py", line 81, in __enter__ return next(self.gen) File "/home/dcsysh/anaconda3/lib/python3.6/site-packages/conda_build/utils.py", line 491, in try_acquire_locks raise BuildLockError('Failed to acquire all locks') conda_build.exceptions.BuildLockError: Failed to acquire all locks ```
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