Unity3d cannot found 64-bit plugin

Question

I wrote simple test osx plugin for Unity3d (contains one simple method - Test).

If I build plugin using universal or 64-bit architecture, then Unity3d did not find plugin (Unity3d write DllNotFoundException).

But if I build plugin using 32-bit architecture then all well. What is wrong?

Answer 1

I found answer) There is because in player settings was set x86 architecture.