Missing file upgrade.h

[amaurial]

File upgrade.h missing in dir at/user . Please upload the file.
make[1]: Entering directory `/opt/esp/SDK/at/user'
DEPEND: xtensa-lx106-elf-gcc -M -Os -g -O2 -Wpointer-arith -Wundef -Werror -Wl,-EL -fno-inline-functions -nostdlib -mlongcalls -mtext-section-literals -D__ets__ -DICACHE_FLASH -I include -I ./ -I ../../rom/include -I ../../include/ets -I ../include -I ./ -I ../../include -I ../../extra_include -I ../../include/lwip -I ../../include/lwip/ipv4 -I ../../include/lwip/ipv6 -I ../../include/espressif at_ipCmd.c
at_ipCmd.c:28:21: fatal error: upgrade.h: No such file or directory
#include "upgrade.h"