******************************************************************************** conan install aaf/1.2.0@ --build=aaf --profile=C:\J\w\BuildSingleReference/19344/d6d16dcf-48ee-405e-8a92-0f63cc87d091/profile.txt ******************************************************************************** Configuration: [settings] arch=x86_64 arch_build=x86_64 build_type=Release compiler=Visual Studio compiler.runtime=MT compiler.version=15 os=Windows os_build=Windows [options] aaf:shared=False [build_requires] [env] aaf/1.2.0: Forced build from source Installing package: aaf/1.2.0 Requirements aaf/1.2.0 from local cache - Cache Packages aaf/1.2.0:7bd6f2c3d5c4e48a75805376b58cde753392f711 - Build Installing (downloading, building) binaries... aaf/1.2.0: Copying sources to build folder aaf/1.2.0: Building your package in C:\J\w\BuildSingleReference\.conan\data\aaf\1.2.0\_\_\build\7bd6f2c3d5c4e48a75805376b58cde753392f711 aaf/1.2.0: Generator txt created conanbuildinfo.txt [HOOK - conan-center.py] pre_build(): [FPIC MANAGEMENT (KB-H007)] 'fPIC' option not found [HOOK - conan-center.py] pre_build(): [FPIC MANAGEMENT (KB-H007)] OK aaf/1.2.0: Calling build() aaf/1.2.0: aaf/1.2.0: WARN: Build folder is dirty, removing it: C:\J\w\BuildSingleReference\.conan\data\aaf\1.2.0\_\_\build\7bd6f2c3d5c4e48a75805376b58cde753392f711 aaf/1.2.0: ERROR: Package '7bd6f2c3d5c4e48a75805376b58cde753392f711' build failed aaf/1.2.0: WARN: Build folder C:\J\w\BuildSingleReference\.conan\data\aaf\1.2.0\_\_\build\7bd6f2c3d5c4e48a75805376b58cde753392f711 ERROR: aaf/1.2.0: Error in build() method, line 49 cmake.configure(source_folder=self._source_subfolder) AttributeError: 'NoneType' object has no attribute 'group'