人工智能开发系列(2) 车牌识别开发与实现

E Traceback (most recent call last):
E   File "rknn\base\RKNNlib\converter\convert_tf.py", line 1179, in rknn.base.RKNNlib.converter.convert_tf.convert_tf.match_paragraph_and_param
E   File "rknn\base\RKNNlib\RKNNnet.py", line 214, in rknn.base.RKNNlib.RKNNnet.RKNNNet.new_layer
E   File "rknn\api\rknn_log.py", line 312, in rknn.api.rknn_log.RKNNLog.e
E ValueError: Unknow layer "randomuniform"
E During handling of the above exception, another exception occurred:
E Traceback (most recent call last):
E   File "rknn\api\rknn_base.py", line 231, in rknn.api.rknn_base.RKNNBase.load_tensorflow
E   File "rknn\base\RKNNlib\RK_nn.py", line 51, in rknn.base.RKNNlib.RK_nn.RKnn.load_tensorflow
E   File "rknn\base\RKNNlib\app\importer\import_tensorflow.py", line 205, in rknn.base.RKNNlib.app.importer.import_tensorflow.Importensorflow.run
E   File "rknn\base\RKNNlib\converter\convert_tf.py", line 1278, in rknn.base.RKNNlib.converter.convert_tf.convert_tf.match_paragraph_and_param
E   File "rknn\api\rknn_log.py", line 312, in rknn.api.rknn_log.RKNNLog.e
E ValueError: Try match RandomUniform dropout/random_uniform/RandomUniform failed, catch exception!
Traceback (most recent call last):
  File "G:/git_projects/CarLicense/rknn_test/rknn_transfer.py", line 33, in <module>
    transfer('../train-saver/digits/lpr_predict.pb', './lpr_digits_predict.rknn')
  File "G:/git_projects/CarLicense/rknn_test/rknn_transfer.py", line 23, in transfer
    rknn.build(do_quantization=False)
  File "D:\anaconda3\envs\tensorflow\lib\site-packages\rknn\api\rknn.py", line 241, in build
    inputs = self.rknn_base.net.get_input_layers()
AttributeError: 'NoneType' object has no attribute 'get_input_layers'
请问能指导解决一下吗