locate structure command does not work with json files

I am making add-ons.
The item I have created, when used, will locate the Pillager outpost using the "locate structure" command.
But it causes a compile error.
So if I remove the "structure" the error disappears, but it will not work in the future.
I don't think I needed to write "structure" in the "locate" command until a long time ago, so I believe I have an outdated version of the compiler.
Please address this issue.
I am Japanese and use translations.
Sorry if it becomes difficult to understand.