Build failure with the message, "no member named 'ForceSet' in 'v8::Object'"

[star114]

$ git clone https://github.com/gillesdemey/Cumulus.git
$ cd Cumulus
$ yarn
In file included from ../fsevents.cc:6:
In file included from ../../nan/nan.h:190:
../../nan/nan_maybe_43_inl.h:112:15: error: no member named 'ForceSet' in 'v8::Object'
  return obj->ForceSet(isolate->GetCurrentContext(), key, value, attribs);
         ~~~  ^
In file included from ../fsevents.cc:6:
In file included from ../../nan/nan.h:190:
../../nan/nan_maybe_43_inl.h:112:15: error: no member named 'ForceSet' in 'v8::Object'
  return obj->ForceSet(isolate->GetCurrentContext(), key, value, attribs);
         ~~~  ^

[star114]

is this project no longer maintained?