https://issues.dlang.org/show_bug.cgi?id=22729
--- Comment #6 from Alexey <animuspe...@protonmail.com> --- my project is compilable again. again, can't tell what exactly changed so bug is gone. I think this is somehow connected with ContainerableI, which I created and added just before bug appearance. thou when I simply renamed ContainerableI.d to ContainerableI.d_ and done minimal removal of ContainerableI form code dmd were still crushing. compiles: https://github.com/AnimusPEXUS/dtk/commit/6f90ca7486c7712af3fb77cf9168b501788b8cb6 next commit, first time bug appearance, added some new ContainerableI interface: https://github.com/AnimusPEXUS/dtk/commit/e75b7a4e1ff95f6cbc09a598cc05755bd97296d0 reworked code to remove ContainerableI, but this is not compilable yet: https://github.com/AnimusPEXUS/dtk/commit/379f53020fd62e43bd3130de89f9cc2f09c3d68a some more work and first successful compilation after bug: https://github.com/AnimusPEXUS/dtk/commit/57b54403e4a0381c50dd5e7e70aca55b78529d0c --