On 08.08.2020 19:42, Philip K. wrote:
I managed to fix this by installing a newer Xref version from ELPA, but
I think this situation should be handled more gracefully. Is there a
reason that project.el doesn't depend on the newer Xref version?
I have pushed a fix for, hopefully. Commit 319463920c.
It inverts the dependencies, making xref only depend on project.el implicitly,
by requiring Emacs >= 26.3, and making it work with the older API. And making
project depend on the latest xref.
Hopefully this reversal won't create any problems when upgrading.