Also, can you provide the full stack trace to the error?

lambdex test --empty hello-bin.pex

Traceback (most recent call last): File "/usr/bin/lambdex", line 10, in <module> sys.exit(main()) File "/usr/lib/python3.7/site-packages/lambdex/bin/lambdex.py", line 220, in main args.func(args) File "/usr/lib/python3.7/site-packages/lambdex/bin/lambdex.py", line 161, in test_lambdex with open(os.path.join(target, 'LAMBDEX-INFO'), 'rb') as fp: FileNotFoundError: [Errno 2] No such file or directory: '/home/ray__/.lambdex/30b8a3d6928612d421290d9c72a4e6da1a5ae5b3451db7695b58eb3da6521a51/LAMBDEX-INFO'