Variable error

ted@METANDEV:~/Workspace/olang/o-language-learning/samples$ ../../olang/olang c --file array_hash.ola
Compilation failed:
 failed to compile statement: Undefined variable inspect
0000 OpConstant 0
0003 OpConstant 1
0006 OpConstant 2
0009 OpHash 2
0012 OpHash 2
0015 OpSetGlobal 0
{"x": {"x": 1}}