Error building the firmware image Server response: Error: Impossible package selection

Request Data:

{
"url": "https://sysupgrade.openwrt.org",
"revision": "r21775-c83dbcdf8f",
"advanced_mode": "0",
"branch": "SNAPSHOT",
"efi": null,
"profile": "xiaomi,mi-router-4a-100m-intl",
"target": "ramips/mt76x8",
"version": "SNAPSHOT",
"packages": [
"adblock",
"base-files",
"busybox",
"ca-bundle",
"dnsmasq",
"dropbear",
"firewall4",
"fstools",
"fwtool",
"getrandom",
"hostapd-common",
"iw",
"iwinfo",
"jansson",
"jshn",
"jsonfilter",
"kernel",
"kmod-cfg80211",
"kmod-crypto-acompress",
"kmod-crypto-aead",
"kmod-crypto-ccm",
"kmod-crypto-cmac",
"kmod-crypto-crc32c",
"kmod-crypto-ctr",
"kmod-crypto-gcm",
"kmod-crypto-gf128",
"kmod-crypto-ghash",
"kmod-crypto-hash",
"kmod-crypto-hmac",
"kmod-crypto-manager",
"kmod-crypto-null",
"kmod-crypto-rng",
"kmod-crypto-seqiv",
"kmod-crypto-sha256",
"kmod-gpio-button-hotplug",
"kmod-leds-gpio",
"kmod-lib-crc-ccitt",
"kmod-lib-crc32c",
"kmod-lib-lzo",
"kmod-mac80211",
"kmod-mt76-core",
"kmod-mt7603",
"kmod-mt76x2",
"kmod-nf-conntrack",
"kmod-nf-conntrack6",
"kmod-nf-flow",
"kmod-nf-log",
"kmod-nf-log6",
"kmod-nf-nat",
"kmod-nf-reject",
"kmod-nf-reject6",
"kmod-nfnetlink",
"kmod-nft-core",
"kmod-nft-fib",
"kmod-nft-nat",
"kmod-nft-offload",
"kmod-ppp",
"kmod-pppoe",
"kmod-pppox",
"kmod-slhc",
"libblobmsg-json",
"libiwinfo",
"libiwinfo-data",
"libjson-c",
"libjson-script",
"libmnl",
"libnftnl",
"libnl-tiny",
"libubox",
"libubus",
"libuci",
"libuclient",
"libucode",
"libustream-wolfssl",
"libwolfssl",
"logd",
"luci",
"luci-app-adblock",
"luci-base",
"luci-mod-network",
"luci-mod-system",
"mtd",
"netifd",
"nftables-json",
"odhcp6c",
"odhcpd-ipv6only",
"openwrt-keyring",
"opkg",
"ppp",
"ppp-mod-pppoe",
"procd",
"procd-seccomp",
"procd-ujail",
"swconfig",
"ubox",
"ubus",
"ubusd",
"uci",
"uclient-fetch",
"ucode",
"ucode-mod-fs",
"ucode-mod-ubus",
"ucode-mod-uci",
"urandom-seed",
"urngd",
"usign",
"wireless-regdb",
"wpad",
"wpad-basic-wolfssl"
],
"diff_packages": true,
"filesystem": "squashfs",
"client": "luci/undefined"
}

STDERR:

Package list missing or not up-to-date, generating it.

Building package index...
Downloading https://downloads.openwrt.org/snapshots/targets/ramips/mt76x8/packages/Packages.gz
Updated list of available packages in /home/aparcar/asu/worker1/cache/SNAPSHOT/ramips/mt76x8/build_dir/target-mipsel_24kc_musl/root-ramips/../../../../../../../../../../../home/aparcar/asu/worker1/cache/SNAPSHOT/ramips/mt76x8/dl/openwrt_core
Downloading https://downloads.openwrt.org/snapshots/targets/ramips/mt76x8/packages/Packages.sig
Signature check passed.
Downloading https://downloads.openwrt.org/snapshots/packages/mipsel_24kc/base/Packages.gz
Updated list of available packages in /home/aparcar/asu/worker1/cache/SNAPSHOT/ramips/mt76x8/build_dir/target-mipsel_24kc_musl/root-ramips/../../../../../../../../../../../home/aparcar/asu/worker1/cache/SNAPSHOT/ramips/mt76x8/dl/openwrt_base
Downloading https://downloads.openwrt.org/snapshots/packages/mipsel_24kc/base/Packages.sig
Signature check passed.
Downloading https://downloads.openwrt.org/snapshots/targets/ramips/mt76x8/kmods/5.10.165-1-53433ef4006dbc9ad37748415fb37e7d/Packages.gz
Updated list of available packages in /home/aparcar/asu/worker1/cache/SNAPSHOT/ramips/mt76x8/build_dir/target-mipsel_24kc_musl/root-ramips/../../../../../../../../../../../home/aparcar/asu/worker1/cache/SNAPSHOT/ramips/mt76x8/dl/openwrt_kmods
Downloading https://downloads.openwrt.org/snapshots/targets/ramips/mt76x8/kmods/5.10.165-1-53433ef4006dbc9ad37748415fb37e7d/Packages.sig
Signature check passed.
Downloading https://downloads.openwrt.org/snapshots/packages/mipsel_24kc/luci/Packages.gz
Updated list of available packages in /home/aparcar/asu/worker1/cache/SNAPSHOT/ramips/mt76x8/build_dir/target-mipsel_24kc_musl/root-ramips/../../../../../../../../../../../home/aparcar/asu/worker1/cache/SNAPSHOT/ramips/mt76x8/dl/openwrt_luci
Downloading https://downloads.openwrt.org/snapshots/packages/mipsel_24kc/luci/Packages.sig
Signature check passed.
Downloading https://downloads.openwrt.org/snapshots/packages/mipsel_24kc/packages/Packages.gz
Updated list of available packages in /home/aparcar/asu/worker1/cache/SNAPSHOT/ramips/mt76x8/build_dir/target-mipsel_24kc_musl/root-ramips/../../../../../../../../../../../home/aparcar/asu/worker1/cache/SNAPSHOT/ramips/mt76x8/dl/openwrt_packages
Downloading https://downloads.openwrt.org/snapshots/packages/mipsel_24kc/packages/Packages.sig
Signature check passed.
Downloading https://downloads.openwrt.org/snapshots/packages/mipsel_24kc/routing/Packages.gz
Updated list of available packages in /home/aparcar/asu/worker1/cache/SNAPSHOT/ramips/mt76x8/build_dir/target-mipsel_24kc_musl/root-ramips/../../../../../../../../../../../home/aparcar/asu/worker1/cache/SNAPSHOT/ramips/mt76x8/dl/openwrt_routing
Downloading https://downloads.openwrt.org/snapshots/packages/mipsel_24kc/routing/Packages.sig
Signature check passed.
Downloading https://downloads.openwrt.org/snapshots/packages/mipsel_24kc/telephony/Packages.gz
Updated list of available packages in /home/aparcar/asu/worker1/cache/SNAPSHOT/ramips/mt76x8/build_dir/target-mipsel_24kc_musl/root-ramips/../../../../../../../../../../../home/aparcar/asu/worker1/cache/SNAPSHOT/ramips/mt76x8/dl/openwrt_telephony
Downloading https://downloads.openwrt.org/snapshots/packages/mipsel_24kc/telephony/Packages.sig
Signature check passed.
Downloading file:packages/Packages
Updated list of available packages in /home/aparcar/asu/worker1/cache/SNAPSHOT/ramips/mt76x8/build_dir/target-mipsel_24kc_musl/root-ramips/../../../../../../../../../../../home/aparcar/asu/worker1/cache/SNAPSHOT/ramips/mt76x8/dl/imagebuilder
Downloading file:packages/Packages.sig
Signature check failed.
Remove wrong Signature file.
Collected errors:

• check_conflicts_for: The following packages conflict with wpad-basic-wolfssl:
• check_conflicts_for: wpad *
• opkg_install_cmd: Cannot install package wpad-basic-wolfssl.
• check_conflicts_for: The following packages conflict with wpad-basic-wolfssl:
• check_conflicts_for: wpad *
• opkg_install_cmd: Cannot install package wpad-basic-wolfssl.
  make[2]: *** [Makefile:185: package_install] Error 255
  make[1]: *** [Makefile:150: _call_manifest] Error 2
  make: *** [Makefile:269: manifest] Error 2

Reproduce the request for profile xiaomi,mi-router-4a-100m-intl on ramips/mt76x8 and inspect the ImageBuilder package_install failure reported at Makefile:185, reached through _call_manifest at Makefile:150 and manifest at Makefile:269. Check how the requested wpad and wpad-basic-wolfssl packages are selected; done means the reported image build completes without the conflict.