error with config gcc for setting up atheross csi tool openwrt

I am currently trying to setup openwrt on ubuntu virtual box but there is an error with config the file the gcc, verison is the latest and its installed, when i run make menuconfig command this is the result;

fatal: Invalid revision range ee53a240ac902dc83209008a2671e7fdcf55957a..HEADfatal: Invalid revision range ee53a240ac902dc83209008a2671e7fdcf55957a..a7830185a86b8409bea57053222b738563abb6c9Checking 'working-make'... ok.Checking 'case-sensitive-fs'... ok.Checking 'proper-umask'... ok.Checking 'gcc'... failed.Checking 'working-gcc'... ok.Checking 'g++'... failed.Checking 'working-g++'... ok.Checking 'ncurses'... ok.Checking 'perl-thread-queue'... ok.Checking 'tar'... ok.Checking 'find'... ok.Checking 'bash'... ok.Checking 'patch'... ok.Checking 'diff'... ok.Checking 'cp'... ok.Checking 'seq'... ok.Checking 'awk'... ok.Checking 'grep'... ok.Checking 'getopt'... ok.Checking 'stat'... ok.Checking 'unzip'... ok.Checking 'bzip2'... ok.Checking 'wget'... ok.Checking 'time'... ok.Checking 'perl'... ok.Checking 'python'... ok.Checking 'git'... ok.Checking 'file'... ok.Checking 'ldconfig-stub'... ok.Build dependency: Please install the GNU C Compiler (gcc) 4.8 or later cc -dumpversion | grep -E '^(4\.[8-9]|[5-9]\.?)'Build dependency: Please reinstall the GNU C Compiler (4.8 or later) - it appears to be brokenBuild dependency: Please install the GNU C++ Compiler (g++) 4.8 or later g++ -dumpversion | grep -E '^(4\.[8-9]|[5-9]\.?)'

any idea on how to solve it?

I tried to install some of the older versions or reinstalling but it didn't work

any idea on how to solve it?

I tried to install some of the older versions or reinstalling but it didn't work