https://issues.dlang.org/show_bug.cgi?id=21299
--- Comment #7 from Dlang Bot <dlang-bot@dlang.rocks> --- dlang/dmd pull request #11874 "Fix Issue 21299: Undefined reference to dmd.root.stringtable.StringValue!(Type).lstring()" was merged into stable: - 01afe9cc8f898eafb0b7bd83080ca302e4fbc74c by Iain Buclaw: Fix Issue 21299: Undefined reference to dmd.root.stringtable.StringValue!(Type).lstring() Alternative patch where instead of proactively fixing up instance members when a template gets changed to a root instance, rather propagate the `minst` as and when we run semantic on the nested templates that still have a non-root `minst` from its scope. https://github.com/dlang/dmd/pull/11874 --