[pluggo] ? error: vst~: VST: plug-in initialization error

Hi,

I've been working on a sampler pluggo on a windows laptop.
Compiling the sampler as vst on this windows laptop works fine.
When I open de patch on a Mac and try to compile it as a vst it seems to go as should, but I cannot see it with Ableton. Also when I try to open the vst in MaxMSP with the [vst~] object, I get the following message:

 ? error: vst~: VST: plug-in initialization error