(Buildroot) "silentoldconfig" error on compile

I just moved an old buildroot folder from an old VM to a newer one to consolidate. I thought that simply moving the folder, along with any dependent folders, and making the appropriate path/name changes would be all that is required to get it up and running in the new VM. Unfortunately, this appears to not be the case as I am greeted with the following error upon attempting to build in this new VM: # # configuration written to /home/mirion/mirion/buildroot-2013.05/.config # /usr/bin/make -j5 HOSTCC="/usr/bin/gcc" HOSTCXX="/usr/bin/g++" silentoldconfig make: Entering directory '/home/mirion/mirion/buildroot-2013.05' BR2_DEFCONFIG='' KCONFIG_AUTOCONFIG=/home/mirion/mirion/buildroot-2013.05/output/build/buildroot-config/auto.conf KCONFIG_AUTOHEADER=/home/mirion/mirion/buildroot-2013.05/output/build/buildroot-config/autoconf.h KCONFIG_TRISTATE=/home/mirion/mirion/buildroot-2013.05/output/build/buildroot-config/tristate.config BUILDROOT_CONFIG=/home/mirion/mirion/buildroot-2013.05/.config /home/mirion/mirion/buildroot-2013.05/output/build/buildroot-config/conf --silentoldconfig Config.in *** Error during update of the configuration. Makefile:692: recipe for target 'silentoldconfig' failed make: *** [silentoldconfig] Error 1 make: Leaving directory '/home/mirion/mirion/buildroot-2013.05' Makefile:396: recipe for target '/home/mirion/mirion/buildroot-2013.05/output/build/buildroot-config/auto.conf' failed make: *** [/home/mirion/mirion/buildroot-2013.05/output/build/buildroot-config/auto.conf] Error 2 mv: cannot stat 'output/images/rootfs.ubi': No such file or directory Are there any ideas as to what I can do to resolve this? I did some poking around on google but could not find anything conclusive. EDIT: Original VM was running Lubuntu 12.04, the new VM is running Ubuntu 17.10. Thanks.