******************************************************************************** conan install openvr/1.12.5@ --profile=C:\J\w\BuildSingleReference@4/9498/7bc84373-41f4-4315-b7f7-777dcde31093/profile.txt --build=openvr ******************************************************************************** Configuration: [settings] arch=x86_64 arch_build=x86_64 build_type=Debug compiler=Visual Studio compiler.runtime=MTd compiler.version=14 os=Windows os_build=Windows [options] openvr: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 jsoncpp/1.9.4:f27dcd2d5e453cb01f9324a959461903ce8116a0 is None: {"recipe": {"revision": "f732262f99043d2ad92bd1ab336362fa", "remote": "conan-center", "properties": {}, "checksums": {"conan_export.tgz": {"md5": "6376262e3b451ded6f890d61a48907fd", "sha1": "186aa8547f2a9265f93e3b5f0b4b0de29b73abad"}, "conanmanifest.txt": {"md5": "2184538f8a0b82091b395e64bd3829fb", "sha1": "9543e790ba953b83c60bdac40088f1588a11397c"}, "conanfile.py": {"md5": "549714c757b7aeb5589df6bacc2d0e49", "sha1": "a6204b0e348d8125489a0d5dbab7fd189875ab3e"}}}, "packages": {"f27dcd2d5e453cb01f9324a959461903ce8116a0": {"revision": null, "recipe_revision": null, "remote": null, "properties": {}, "checksums": {}}}} ERROR: PREV for jsoncpp/1.9.4:f27dcd2d5e453cb01f9324a959461903ce8116a0 is None: {"recipe": {"revision": "f732262f99043d2ad92bd1ab336362fa", "remote": "conan-center", "properties": {}, "checksums": {"conan_export.tgz": {"md5": "6376262e3b451ded6f890d61a48907fd", "sha1": "186aa8547f2a9265f93e3b5f0b4b0de29b73abad"}, "conanmanifest.txt": {"md5": "2184538f8a0b82091b395e64bd3829fb", "sha1": "9543e790ba953b83c60bdac40088f1588a11397c"}, "conanfile.py": {"md5": "549714c757b7aeb5589df6bacc2d0e49", "sha1": "a6204b0e348d8125489a0d5dbab7fd189875ab3e"}}}, "packages": {"f27dcd2d5e453cb01f9324a959461903ce8116a0": {"revision": null, "recipe_revision": null, "remote": null, "properties": {}, "checksums": {}}}}