undefined reference to `_D16TypeInfo_HAyayAa6__initZ'

[bearophile]

Jeroen Bollen:

> I am getting this weird linker error when compiling my code; 
> what does it mean?

If your code used to work, and you have just tried dmd 2.064 then 
as try to compile with -allinst.

Bye,
bearophile