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conan install boost/1.71.0@ --profile=C:\J\w\BuildSingleReference@11/9047/85513fa3-7d3b-42d7-90b2-1ec4ea887742/profile.txt --build=boost
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Configuration:
[settings]
arch=x86_64
arch_build=x86_64
build_type=Release
compiler=Visual Studio
compiler.runtime=MD
compiler.version=14
os=Windows
os_build=Windows
[options]
boost:shared=False
[build_requires]
[env]

Traceback (most recent call last):
  File "c:\python36\lib\site-packages\conans\client\command.py", line 2115, in run
    method(args[0][1:])
  File "c:\python36\lib\site-packages\conans\client\command.py", line 531, in install
    lockfile_node_id=args.lockfile_node_id)
  File "c:\python36\lib\site-packages\conans\client\conan_api.py", line 94, in wrapper
    return f(api, *args, **kwargs)
  File "c:\python36\lib\site-packages\conans\client\conan_api.py", line 560, in install_reference
    lockfile_node_id=lockfile_node_id)
  File "c:\python36\lib\site-packages\conans\client\manager.py", line 57, in deps_install
    lockfile_node_id=lockfile_node_id)
  File "c:\python36\lib\site-packages\conans\client\graph\graph_manager.py", line 116, in load_graph
    apply_build_requires=apply_build_requires)
  File "c:\python36\lib\site-packages\conans\client\graph\graph_manager.py", line 246, in _resolve_graph
    graph_lock=graph_lock)
  File "c:\python36\lib\site-packages\conans\client\graph\graph_manager.py", line 365, in _load_graph
    apply_build_requires=apply_build_requires)
  File "c:\python36\lib\site-packages\conans\client\graph\graph_manager.py", line 286, in _recurse_build_requires
    self._binary_analyzer.evaluate_graph(graph, build_mode, update, remotes, nodes_subset, root)
  File "c:\python36\lib\site-packages\conans\client\graph\graph_binaries.py", line 389, in evaluate_graph
    self._evaluate_node(node, build_mode, update, remotes)
  File "c:\python36\lib\site-packages\conans\client\graph\graph_binaries.py", line 176, in _evaluate_node
    self._process_node(node, pref, build_mode, update, remotes)
  File "c:\python36\lib\site-packages\conans\client\graph\graph_binaries.py", line 242, in _process_node
    self._evaluate_cache_pkg(node, package_layout, pref, metadata, remote, remotes, update)
  File "c:\python36\lib\site-packages\conans\client\graph\graph_binaries.py", line 95, in _evaluate_cache_pkg
    assert node.prev, "PREV for %s is None: %s" % (str(pref), metadata.dumps())
AssertionError: PREV for bzip2/1.0.8:d9d4b222f9e8db0529bc4a08685d8a80c5b6eadb is None: {"recipe": {"revision": "ec305daf917b87e9de2fa35d3aa55859", "remote": "conan-center", "properties": {}, "checksums": {"conan_export.tgz": {"md5": "44e99ec27f446c8c2903d7ead4a7e8e4", "sha1": "5a2eb16ade9bced471bfe964bcc6a726c864fad6"}, "conanmanifest.txt": {"md5": "5fb124e35108ba6fc029120106acdcce", "sha1": "16bdaf41813b1ee550e99d3fda8904819c5bc470"}, "conanfile.py": {"md5": "8f42a7e735a29375bf3516643dad72ff", "sha1": "cb3a30b61827f6e2a4a620094a382c1fdba109c3"}}}, "packages": {"d9d4b222f9e8db0529bc4a08685d8a80c5b6eadb": {"revision": null, "recipe_revision": null, "remote": null, "properties": {}, "checksums": {}}}}

ERROR: PREV for bzip2/1.0.8:d9d4b222f9e8db0529bc4a08685d8a80c5b6eadb is None: {"recipe": {"revision": "ec305daf917b87e9de2fa35d3aa55859", "remote": "conan-center", "properties": {}, "checksums": {"conan_export.tgz": {"md5": "44e99ec27f446c8c2903d7ead4a7e8e4", "sha1": "5a2eb16ade9bced471bfe964bcc6a726c864fad6"}, "conanmanifest.txt": {"md5": "5fb124e35108ba6fc029120106acdcce", "sha1": "16bdaf41813b1ee550e99d3fda8904819c5bc470"}, "conanfile.py": {"md5": "8f42a7e735a29375bf3516643dad72ff", "sha1": "cb3a30b61827f6e2a4a620094a382c1fdba109c3"}}}, "packages": {"d9d4b222f9e8db0529bc4a08685d8a80c5b6eadb": {"revision": null, "recipe_revision": null, "remote": null, "properties": {}, "checksums": {}}}}