I get the same message. I've tried several solutions that are offered here and on another resources. I have tried to include and exclude the ca.crt in/from .p12. I tried to load to Iphone the ca.crt separately. I tried to include ca.crt to .ovpn file. Nut the result is the same
EVENT: CORE_ERROR PolarSSL: ca certificate is undefined [ERR]
This my latest .ovpn file
$ cat ios1.ovpn
client
dev tun
proto udp
remote IP 1194
resolv-retry infinite
nobind
persist-key
persist-tun
ns-cert-type server
comp-lzo
verb 3
<CA>
ca.crt is here
</CA>
The configuration of the server is +- standart without any features. Maybe somebody knows any other ways to have openvpn working on ios (I have Iphone) ?
WBR,
Serge