Device API hexagon is not enabled

Hi,I create a tvm.nd.array, by the bellow code:

dev_type = Device.kDLHexagon  
dev_id = 0  
dev = nd.device(dev_type, dev_id)  
a_np = np.random.uniform(size=1024)  
a = tvm.nd.array(a_np, dev)  

but get the flowing error: Check failed: (allow_missing) is false: Device API hexagon is not enabled.

I am sure that I open the button like USE_HEXAGON=ON,besides I can build model with hexagonv68.
How can I solve the problem?