How to build a firmware for Mikrotik RB450Gx4 IPQ4019

Hello to all,
I am trying to build a custom firmware for my device Mikrotik RB450Gx4 IPQ4019.
I need to build my own firmware including openvpn, kmod-tun. The reason I am not using the firmware from openwrt website is because I get error on installing kmod-tun and openvpn.

I have compiled generic ipq40xx but no image is compatible with mikrotik.

Thanks

A post was merged into an existing topic: MikroTik rb450gx4 support