cannot compute MatMul as input #1(zero-based) was expected to be a double tensor but is a float...

Jupyter报错：

InvalidArgumentError: cannot compute MatMul as input #1(zero-based) was expected to be a double tensor but is a float tensor [Op:MatMul] name: MatMul/

原因

参数的数据类型不一致

解决方法

找到报错的那一行，用print(参数.dtype) 查看参数的数据类型
然后用tf.cast(参数，dtype=数据类型) 对错误的参数的数据类型进行修改即可