Resolving dependencies... Error: cabal: Could not resolve dependencies: [__0] next goal: gpu-vulkan-middle-khr-surface-glfw (user goal) [__0] rejecting: gpu-vulkan-middle-khr-surface-glfw-0.1.0.1 (constraint from user target requires ==0.1.0.0) [__0] trying: gpu-vulkan-middle-khr-surface-glfw-0.1.0.0 [__1] trying: gpu-vulkan-middle-khr-surface-0.1.0.0 (dependency of gpu-vulkan-middle-khr-surface-glfw) [__2] next goal: gpu-vulkan-core (dependency of gpu-vulkan-middle-khr-surface) [__2] rejecting: gpu-vulkan-core-0.1.0.21, gpu-vulkan-core-0.1.0.20, gpu-vulkan-core-0.1.0.19, gpu-vulkan-core-0.1.0.18, gpu-vulkan-core-0.1.0.17, gpu-vulkan-core-0.1.0.16, gpu-vulkan-core-0.1.0.14, gpu-vulkan-core-0.1.0.13, gpu-vulkan-core-0.1.0.11, gpu-vulkan-core-0.1.0.8, gpu-vulkan-core-0.1.0.7 (conflict: pkg-config package vulkan-any, not found in the pkg-config database) [__2] fail (backjumping, conflict set: gpu-vulkan-core, gpu-vulkan-middle-khr-surface) After searching the rest of the dependency tree exhaustively, these were the goals I've had most trouble fulfilling: gpu-vulkan-core, gpu-vulkan-middle-khr-surface-glfw, gpu-vulkan-middle-khr-surface