Ionic 4 => OSX platform

I am working on an ionic 4 project and want to generate a version for the OSX platform.
I have successfully add the platform and build the project for this platform after upgrading to the last cordova version.
Now, i run the project for the OSX platform and i only get a black screen.
I had the information that we cannot generate a version of the ionic project for the OSX platform but after successed to add the platform i think that there are some new corrections in the cordova or ionic in recente version that my solve the problem.
Have any one encountred this kind of problem?

or can anyone help me get over this issue?

thanks in advance

bellow is a screenshoot for the black screen i get

bellow is a screenshoot for ionic info