******************************************************************************** conan install 7zip/19.00@#0a5dbe8a9894610416cd33dd4597b116 --build=7zip -pr C:\J\w\prod\BuildSingleReference\198171\5fae192e-0093-46b8-ac0b-96cc2404b247/profile_windows_15_mt_vs_release_64..txt -c tools.system.package_manager:mode=install -c tools.system.package_manager:sudo=True ******************************************************************************** Auto detecting your dev setup to initialize the default profile (C:\J\w\prod\BuildSingleReference\.conan\profiles\default) Found Visual Studio 17 Default settings os=Windows os_build=Windows arch=x86_64 arch_build=x86_64 compiler=Visual Studio compiler.version=17 build_type=Release *** You can change them in C:\J\w\prod\BuildSingleReference\.conan\profiles\default *** *** Or override with -s compiler='other' -s ...s*** Configuration: [settings] arch=x86_64 build_type=Release compiler=Visual Studio compiler.runtime=MT compiler.version=15 os=Windows [options] [build_requires] [env] [conf] tools.system.package_manager:mode=install tools.system.package_manager:sudo=True 7zip/19.00: Forced build from source lzma_sdk/9.20: Not found in local cache, looking in remotes... lzma_sdk/9.20: Trying with 'conan-center'... Downloading conanmanifest.txt Downloading conanfile.py Downloading conan_export.tgz lzma_sdk/9.20: Downloaded recipe revision 97a2eef0cd17c7a3ba95f56a84c3f388 Installing package: 7zip/19.00 Requirements 7zip/19.00 from local cache - Cache Packages 7zip/19.00:ca33edce272a279b24f87dc0d4cf5bbdcffbc187 - Build Build requirements lzma_sdk/9.20 from 'conan-center' - Downloaded Build requirements packages lzma_sdk/9.20:ca33edce272a279b24f87dc0d4cf5bbdcffbc187 - Download Installing (downloading, building) binaries... lzma_sdk/9.20: Retrieving package ca33edce272a279b24f87dc0d4cf5bbdcffbc187 from remote 'conan-center' Downloading conanmanifest.txt Downloading conaninfo.txt Downloading conan_package.tgz lzma_sdk/9.20: Package installed ca33edce272a279b24f87dc0d4cf5bbdcffbc187 lzma_sdk/9.20: Downloaded package revision a83e686962ea413c6e1966a3de27be1b lzma_sdk/9.20: Appending PATH environment variable: C:\J\w\prod\BuildSingleReference\.conan\data\lzma_sdk\9.20\_\_\package\ca33edce272a279b24f87dc0d4cf5bbdcffbc187\bin 7zip/19.00: Applying build-requirement: lzma_sdk/9.20 [HOOK - conan-center.py] pre_source(): [IMMUTABLE SOURCES (KB-H010)] OK 7zip/19.00: Configuring sources in C:\J\w\prod\BuildSingleReference\.conan\data\7zip\19.00\_\_\source ERROR: 7zip/19.00: Error in source() method, line 51 download(self, url, filename, sha256) UnboundLocalError: local variable 'filename' referenced before assignment