RMX1971: missing < in overlay

/bin/bash -c "out/host/linux-x86/bin/aapt2 compile -o out/target/common/obj/APPS/Settings__auto_generated_rro_vendor_intermediates/flat-res/device/realme/RMX1971/overlay/packages/apps/Settings/res/ --pseudo-localize  device/realme/RMX1971/overlay/packages/apps/Settings/res/values/config.xml"
device/realme/RMX1971/overlay/packages/apps/Settings/res/values/config.xml:0: error: xml parser error: not well-formed (invalid token).
device/realme/RMX1971/overlay/packages/apps/Settings/res/values/config.xml: error: file failed to compile.