openh264/2.1.1: WARN: Build folder is dirty, removing it: C:\J\w\cci_PR-3696@2\.conan\data\openh264\2.1.1\_\_\build\7bd6f2c3d5c4e48a75805376b58cde753392f711 openh264/2.1.1: ERROR: Package '7bd6f2c3d5c4e48a75805376b58cde753392f711' build failed openh264/2.1.1: WARN: Build folder C:\J\w\cci_PR-3696@2\.conan\data\openh264\2.1.1\_\_\build\7bd6f2c3d5c4e48a75805376b58cde753392f711 ERROR: openh264/2.1.1: Error in build() method, line 125 "CFLAGS_OPT += -%s" % str(self.settings.compiler.runtime)) FileNotFoundError: [Errno 2] No such file or directory: 'build\\platform-msvc.mk'