i tried to compile yang models with the ydk-gen with the following command
"export REPO="/home/sahana/Desktop/Netconf/yang"
"python3 generate.py -is --cpp --adhoc-bundle-name SixWindConfig --adhoc-bundle $REPO/ietf-ssh-common.yang $REPO/sysrepo-monitoring.yang $REPO/vrouter-dns.yang $REPO/vrouter-if-types.yang $REPO/vrouter-nhrp.yang $REPO/vrouter-system.yang $REPO/extra-conditions.yang $REPO/ietf-ssh-server.yang $REPO/sysrepo-plugind.yang $REPO/vrouter-embedded.yang $REPO/vrouter-ike.yang $REPO/vrouter-ntp.yang $REPO/vrouter-telegraf.yang $REPO/fp.yang $REPO/ietf-tcp-client.yang $REPO/sysrepo.yang $REPO/vrouter-evpn.yang $REPO/vrouter-inet-types.yang $REPO/vrouter-ospf6.yang $REPO/vrouter-tracker.yang $REPO/iana-crypt-hash.yang $REPO/ietf-tcp-common.yang $REPO/system.yang $REPO/vrouter-extensions.yang $REPO/vrouter-interface.yang $REPO/vrouter-ospf.yang $REPO/vrouter-tunnel.yang $REPO/iana-timezones.yang $REPO/ietf-tcp-server.yang $REPO/vrouter-aaa.yang $REPO/vrouter-fast-path-cgnat.yang $REPO/vrouter-ipip.yang $REPO/vrouter-pbr.yang $REPO/vrouter-types.yang $REPO/ietf-crypto-types.yang $REPO/ietf-tls-common.yang $REPO/vrouter-api.yang $REPO/vrouter-fast-path-statistics.yang $REPO/vrouter-ip.yang $REPO/vrouter-pm.yang $REPO/vrouter-veth.yang $REPO/ietf-datastores.yang $REPO/ietf-tls-server.yang $REPO/vrouter-auth.yang $REPO/vrouter-fast-path.yang $REPO/vrouter-kpi.yang $REPO/vrouter-product.yang $REPO/vrouter-vlan.yang $REPO/ietf-inet-types.yang $REPO/ietf-truststore.yang $REPO/vrouter-bfd.yang $REPO/vrouter-firewall6.yang $REPO/vrouter-lag.yang $REPO/vrouter-qos.yang $REPO/vrouter-vrrp.yang $REPO/ietf-keystore.yang $REPO/ietf-x509-cert-to-name.yang $REPO/vrouter-bgp-rpki.yang $REPO/vrouter-firewall-modules.yang $REPO/vrouter-ldp.yang $REPO/vrouter-rip.yang $REPO/vrouter-vxlan.yang $REPO/ietf-netconf-acm.yang $REPO/ietf-yang-library.yang $REPO/vrouter-bgp.yang $REPO/vrouter-firewall-types.yang $REPO/vrouter-license.yang $REPO/vrouter-routing-types.yang $REPO/vrouter-xvrf.yang $REPO/ietf-netconf-monitoring.yang $REPO/ietf-yang-metadata.yang $REPO/vrouter-bridge.yang $REPO/vrouter-firewall.yang $REPO/vrouter-linux.yang $REPO/vrouter-routing.yang $REPO/vrouter.yang $REPO/ietf-netconf-nmda.yang $REPO/ietf-yang-types.yang $REPO/vrouter-certificate.yang $REPO/vrouter-gre.yang $REPO/vrouter-lldp.yang $REPO/vrouter-serial-ports.yang $REPO/yang.yang $REPO/ietf-netconf-notifications.yang $REPO/nc-notifications.yang $REPO/vrouter-cgnat.yang $REPO/vrouter-group.yang $REPO/vrouter-logging.yang $REPO/vrouter-sflow.yang $REPO/network.yang $REPO/vrouter-cloud-init.yang $REPO/vrouter-ha-conntrack.yang $REPO/vrouter-loopback.yang $REPO/vrouter-snmp.yang $REPO/ietf-netconf-with-defaults.yang $REPO/notifications.yang $REPO/vrouter-commands.yang $REPO/vrouter-ha-neigh.yang $REPO/vrouter-nat.yang $REPO/vrouter-ssh-server.yang $REPO/ietf-netconf.yang $REPO/product.yang $REPO/vrouter-dhcp.yang $REPO/vrouter-hardware-flow-rule.yang $REPO/vrouter-netconf-server.yang $REPO/vrouter-svti.yang $REPO/ietf-origin.yang $REPO/sixwind-router.yang $REPO/vrouter-dns-server.yang $REPO/vrouter-ha.yang $REPO/vrouter-network-ports.yang $REPO/vrouter-system-loopback.yang $REPO/fp-cg-nat-stats.yang $REPO/fp-cpu-usage.yang $REPO/fp-ctx-switch-stats.yang $REPO/fp-exceptions-stats.yang $REPO/fp-filling-cg-nat.yang $REPO/fp-filling.yang $REPO/fp-global-stats.yang $REPO/fp-gre-stats.yang $REPO/fp-gtp-stats.yang $REPO/fp-ipsec-stats.yang $REPO/fp-ip-stats.yang $REPO/fp-l2-stats.yang $REPO/fp-ports-stats.yang $REPO/fp-vxlan-stats.yang $REPO/fp.yang $REPO/iana-crypt-hash.yang $REPO/iana-timezones.yang $REPO/ietf-alarms.yang $REPO/ietf-inet-types.yang $REPO/ietf-netconf-acm.yang $REPO/ietf-yang-types.yang $REPO/network.yang $REPO/product.yang $REPO/sixwind-router.yang $REPO/system.yang $REPO/vrouter-aaa.yang $REPO/vrouter-alarm.yang $REPO/vrouter-api.yang $REPO/vrouter-auth.yang $REPO/vrouter-bfd.yang $REPO/vrouter-bgp-bmp.yang $REPO/vrouter-bgp-rpki.yang $REPO/vrouter-bgp.yang $REPO/vrouter-bridge.yang $REPO/vrouter-certificate.yang $REPO/vrouter-cgnat.yang $REPO/vrouter-cloud-init.yang $REPO/vrouter-commands.yang $REPO/vrouter-commit-history.yang $REPO/vrouter-dhcp.yang $REPO/vrouter-dns-server.yang $REPO/vrouter-dns.yang $REPO/vrouter-embedded.yang $REPO/vrouter-evpn.yang $REPO/vrouter-extensions.yang $REPO/vrouter-fast-path-cgnat.yang $REPO/vrouter-fast-path-statistics.yang $REPO/vrouter-fast-path.yang $REPO/vrouter-firewall6.yang $REPO/vrouter-firewall-modules.yang $REPO/vrouter-firewall-types.yang $REPO/vrouter-firewall.yang $REPO/vrouter-gretap.yang $REPO/vrouter-gre.yang $REPO/vrouter-group.yang $REPO/vrouter-ha-conntrack.yang $REPO/vrouter-ha-neigh.yang $REPO/vrouter-hardware-flow-rule.yang $REPO/vrouter-igmp.yang $REPO/vrouter-igmp.yang $REPO/vrouter-interface.yang $REPO/vrouter-ipfix.yang $REPO/vrouter-ipip.yang $REPO/vrouter-ipv6-autoconf.yang $REPO/vrouter-ip.yang $REPO/vrouter-isis.yang $REPO/vrouter-kpi.yang $REPO/vrouter-lag.yang $REPO/vrouter-ldp.yang $REPO/vrouter-legacy-vti.yang $REPO/vrouter-license.yang $REPO/vrouter-linux.yang $REPO/vrouter-lldp.yang $REPO/vrouter-logging.yang $REPO/vrouter-loopback.yang $REPO/vrouter-management.yang $REPO/vrouter-nat.yang $REPO/vrouter-netconf-server.yang $REPO/vrouter-network-ports.yang $REPO/vrouter-nhrp.yang $REPO/vrouter-ntp.yang $REPO/vrouter-ospf6.yang $REPO/vrouter-ospf.yang $REPO/vrouter-pbr.yang $REPO/vrouter-pimreg.yang $REPO/vrouter-pim.yang $REPO/vrouter-pm.yang $REPO/vrouter-pppoe.yang $REPO/vrouter-product.yang $REPO/vrouter-qos-hub.yang $REPO/vrouter-qos.yang $REPO/vrouter-rip.yang $REPO/vrouter-routing-types.yang $REPO/vrouter-routing.yang $REPO/vrouter-serial-ports.yang $REPO/vrouter-sflow.yang $REPO/vrouter-snmp.yang vrouter-sr-te.yang $REPO/vrouter-ssh-server.yang $REPO/vrouter-svti.yang $REPO/vrouter-system-loopback.yang $REPO/vrouter-system.yang $REPO/vrouter-telegraf.yang $REPO/vrouter-tracker.yang $REPO/vrouter-tunnel.yang $REPO/vrouter-twamp.yang $REPO/vrouter-types.yang $REPO/vrouter-veth.yang $REPO/vrouter-vlan.yang $REPO/vrouter-vrrp.yang $REPO/vrouter-vxlan.yang $REPO/vrouter-xvrf.yang $REPO/vrouter.yang"
but it is throwing the following error
"/home/sahana/Desktop/Netconf/ydk-gen/gen-api/.cache/models/SixWindConfig@0.1.0/fp-ctx-switch-stats.yang:20: node fp-ctx-switch-stats::statistics is not found
Error(s) occurred in YdkGenerator()!
Error occured: "/home/sahana/Desktop/Netconf/ydk-gen/gen-api/.cache/models/SixWindConfig@0.1.0/fp-ctx-switch-stats.yang:20: node fp-ctx-switch-stats::statistics is not found."
The models supplied to the YDK generator are invalid. Please make sure the models are valid by compiling the models together using pyang. Please run "pyang *.yang" in the models directory, make sure there are no errors and then try running the generator again. If there are model errors, please fix the errors by editing the model, contacting the model owner or deleting the model from the list of models to generate the YDK bindings for."
so I checked again with "pyang *.yang" command, it throws me the following error
"pyang *.yang
fp-cg-nat-stats.yang:22: error: node fp-cg-nat-stats::statistics is not found
fp-filling-cg-nat.yang:18: error: node fp-filling-cg-nat::filling is not found"
Could i get help in resolving this