Open failed...2

[waged]

I've been trying to use the app for a half an hour now and seems no hope to work with my mac High Sierra and ends with Open failed...2 with all connected serials although i still can open them with SerialTools app which is for free..

[long568]

2 means Permission Error
Maybe it's because of the security mechanism of MAC.
You can download the source code and complile it using Qt.