MindSpore报错 task_fail_info or current_graph_ is nullptr

1 Error description

1.1 System environment

Hardware Environment(Ascend/GPU/CPU): Ascend Software Environment: -- MindSpore version (source or binary): 1.8.0 -- Python version (e.g., Python 3.7.5): 3.7.6 -- OS platform and distribution (e.g., Linux Ubuntu 16.04): Ubuntu 4.15.0-74-generic -- GCC/Compiler version (if compiled from source):

1.2 Basic Information

1.2.1 Script

The training script is to perform greedy decoding (best path) on the logits given in the input by constructing a single operator network of CTCGreedyDecoder. The script is as follows:

 01 class Net(nn.Cell):
 02     def __init__(self):
 03         super(Net, self).__init__()
 04         self.ctc_greedyDecoder = ops.CTCGreedyDecoder()
 05 
 06     def construct(self, input_x, sequence_length):
 07         return self.ctc_greedyDecoder(input_x, sequence_length)
 08 net = Net()
 09 
 10 
 11 inputs = Tensor(np.array([[[0.6, 0.4, 0.2], [0.8, 0.6, 0.3]],
 12                           [[0.0, 0.6, 0.0], [0.5, 0.4, 0.5]]]), min