按照文档进行 pp-shitu的Serving部署，运行python3 recognition_web_service.py &>log.txt & 命令，看启动日志是正常的，但是运行 python3 pipeline_http_client.py 后提示错误，

InvalidArgumentError: Broadcast dimension mismatch. Operands could not be broadcast together with the shape of X = [2500, 4] and the shap e of Y = [2]. Received [4] in X is not equal to [2] in Y at i:1.
[Hint: Expected x_dims_array[i] == y_dims_array[i] || x_dims_array[i] <= 1 || y_dims_array[i] <= 1 == true, but received x_dims_array[i ] == y_dims_array[i] || x_dims_array[i] <= 1 || y_dims_array[i] <= 1:0 != true:1.] (at /paddle/paddle/fluid/operators/elementwise/elementwise _op_function.h:240)