ValueError: Tensor Tensor("dense_1/Sigmoid:0", shape=(?, ?, 1), dtype=float32) is not an element ...

问题：

    Flask部署keras模型服务时，出现以下错误：

    ValueError: Tensor Tensor("dense_1/Sigmoid:0", shape=(?, ?, 1), dtype=float32) is not an element of this graph.

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解决方案：

    global sess

    global graph

    sess = tf.Session()

    graph = tf.get_default_graph()

    set_session(sess)

    #加载模型

    relation_extract.load_model()

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    #下面是接口函数中调用

    with graph.as_default():

            set_session(sess)

            result= relation_extract.predict(text)