Failed to build the mobile app On Mac

Actually, I tried to build the mobile app on a Hackintosh (or custom mac), but it failed.

I could build a react native app before (1 yr ago).

I searched and it seems it is due to that xcode version is too low ㅜ.ㅜ

i tried to install new version of Mac (Catalina) to use a newer version of xcode.

BUT. from the beginnig, Memory panic occurs. oops.

I need to do something!

TL;DL

• react native 0.63.3
• mac os 10.14.6 (mojave)
• failed to build the mobile app