On Sun, 22 Feb 2015 18:30:24 GMT, Alex M wrote:

To answer my own conundrum, after installing GDC 4.9.2 (2.065 front-end), which can be pulled from the "vivid main universe", vibe.d builds cleanly.

so, the compiler front-end must be >= 2.065 with the latest vibe.d 0.7.22
I'm spelling it out as it will get indexed.

We generally try to support the latest three frontend versions. Everything else quickly gets difficult (2.064 had some compiler bugs that couldn't be elegantly worked around) and it takes forever until recent features can be used (user defined attibutes have been such a case).

Unfortunately, the turnaround time for GDC in the official package repositories is notoriously slow, so that even three versions are not always enough in practice. But maybe 2.065 will be a more permanent anchor point than 2.064.