Creating commandbuffer is failing

[PriyeshWani]

priyesh@priyesh-Blade:~/Downloads/vulkan_minimal_compute-master$ ./vulkan_minimal_compute
Fatal : VkResult is -2 in /home/priyesh/Downloads/vulkan_minimal_compute-master/src/main.cpp at line 485
vulkan_minimal_compute: /home/priyesh/Downloads/vulkan_minimal_compute-master/src/main.cpp:485: void ComputeApplication::createBuffer(): Assertion `res == VK_SUCCESS' failed.
Aborted (core dumped)

Creating buffer seems to fail on my end. Any clue what might be causing this?