can't build environement about esp32-arduino-lib-builder HOT 3 OPEN

git checkout 97d7d20
./build.sh 

...manylines...

/PATHTO/esp/esp32-arduino-lib-builder/components/arduino/libraries/WiFi/src/ETH.cpp: In member function 'IPAddress ETHClass::dnsIP(uint8_t)':
/PATHTO/esp/esp32-arduino-lib-builder/components/arduino/libraries/WiFi/src/ETH.cpp:196:37: error: conversion from 'const ip_addr_t* {aka const ip_addr*}' to non-scalar type 'ip_addr_t {aka ip_addr}' requested
     ip_addr_t dns_ip = dns_getserver(dns_no);
                                     ^

/PATHTO/esp/esp32-arduino-lib-builder/esp-idf/components/app_update/Makefile.projbuild:19: предупреждение: неопределённая переменная «quote»
make[1]: *** [/PATHTO/esp/esp32-arduino-lib-builder/esp-idf/make/component_wrapper.mk:289: libraries/WiFi/src//ETH.o] Ошибка 1
make: *** [/PATHTO/esp/esp32-arduino-lib-builder/esp-idf/make/project.mk:552: component-arduino-build] Ошибка 2

    ip_addr_t *dns_ip = (ip_addr_t*) dns_getserver(dns_no);
    return IPAddress(dns_ip->u_addr.ip4.addr);