Steps to reproduce: - download and setup edk2 - run: build -a X64 -b DEBUG -t GCC -p NetworkPkg/NetworkPkg.dsc Get the error: build.py... /.../edk2/NetworkPkg/NetworkPkg.dsc(...): error 4000: Instance of library class [SynchronizationLib] is not found in [/.../edk2/CryptoPkg/Library/BaseCryptLib/BaseCryptLib.inf] [X64] consumed by module [/.../edk2/NetworkPkg/TlsDxe/TlsDxe.inf] Adding this LibClass to NetworkPkg.dsc solves it: SynchronizationLib|MdePkg/Library/BaseSynchronizationLib/BaseSynchronizationLib.inf I tried to open a bug in bugzilla but I wasn't able to log in or create an account. How should I do it next time? -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#111398): https://edk2.groups.io/g/devel/message/111398 Mute This Topic: https://groups.io/mt/102646401/7686176 Group Owner: devel+owner@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [rebecca@openfw.io] -=-=-=-=-=-=-=-=-=-=-=-