maven/3.6.3: WARN: This conanfile has no build step
[HOOK - conan-center.py] post_package(): ERROR: [PACKAGE LICENSE (KB-H012)] No 'licenses' folder found in package: /home/conan/w/cci_PR-4488/.conan/data/maven/3.6.3/_/_/package/284e0c9f9a5ffd502b2ebfb2c1a9ebc2ed9be54f  (https://github.com/conan-io/conan-center-index/blob/master/docs/error_knowledge_base.md#KB-H012) 
[HOOK - conan-center.py] post_package(): ERROR: [DEFAULT PACKAGE LAYOUT (KB-H013)] Unknown file 'README.txt' in the package (https://github.com/conan-io/conan-center-index/blob/master/docs/error_knowledge_base.md#KB-H013) 
[HOOK - conan-center.py] post_package(): ERROR: [DEFAULT PACKAGE LAYOUT (KB-H013)] Unknown file 'NOTICE' in the package (https://github.com/conan-io/conan-center-index/blob/master/docs/error_knowledge_base.md#KB-H013) 
[HOOK - conan-center.py] post_package(): ERROR: [DEFAULT PACKAGE LAYOUT (KB-H013)] Unknown folder 'conf' in the package (https://github.com/conan-io/conan-center-index/blob/master/docs/error_knowledge_base.md#KB-H013) 
[HOOK - conan-center.py] post_package(): ERROR: [DEFAULT PACKAGE LAYOUT (KB-H013)] Unknown file 'LICENSE' in the package (https://github.com/conan-io/conan-center-index/blob/master/docs/error_knowledge_base.md#KB-H013) 
[HOOK - conan-center.py] post_package(): ERROR: [DEFAULT PACKAGE LAYOUT (KB-H013)] Unknown folder 'boot' in the package (https://github.com/conan-io/conan-center-index/blob/master/docs/error_knowledge_base.md#KB-H013) 
ERROR: [HOOK - conan-center.py] post_package(): Some checks failed running the hook, check the output