This occurs at the 'make' step below:

Compile and Install ISOBlue tools

The following commands compile, and then install, all the processes for running or testing ISOBlue.

$ cd ~/isoblue-software/tools
$ make

make install

Error output:

root@beaglebone:~/isoblue-software/tools# make
cc -Wall -Wextra -O3 -DBUILD_NUM='"beta2.1-root@beaglebone-1398978186"' isoblued.c ring_buf.o -lbluetooth -lleveldb -o isoblued
isoblued.c:50:23: fatal error: leveldb/c.h: No such file or directory
compilation terminated.
make: *** [isoblued] Error 1

I got everything installed and tried to start loopback mode for testing and now I'm getting these errors

root@beaglebone:~/isoblue-software/tools# ifconfig ib_eng down
ifconfig: SIOCGIFFLAGS: No such device
root@beaglebone:~/isoblue-software/tools# canconfig ib_eng ctrlmode loopback on
Cannot find device "ib_eng"
ib_eng: failed to set ctrlmode