Paddle Inference运行预测示例程序mobilenetv1_full_api.py报错：ValueError: Unsupported backend: .

[sweetboxwwy]

• 版本、环境信息：

• paddlepaddle:

• paddlepaddle-gpu: 2.4.1

• paddlenlp:

• CUDA 10.2

• DOCKER

• UBUNTU 18.04

• paddlelite 2.8

• 编译/安装方式信息： 1）pip 安装/docker 安装

运行预测示例程序mobilenetv1_full_api.py报错：ValueError: Unsupported backend: .

python mobilenetv1_full_api.py --model_dir=./mobilenet_v1

Traceback (most recent call last): File "mobilenetv1_full_api.py", line 237, in RunModel(args) File "mobilenetv1_full_api.py", line 184, in RunModel raise ValueError("Unsupported backend: %s." % args.backend) ValueError: Unsupported backend: .

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您好，我们已经收到了您的问题，会安排技术人员尽快解答您的问题，请耐心等待。请您再次检查是否提供了清晰的问题描述、复现代码、环境&版本、报错信息等。同时，您也可以通过查看官网API文档、常见问题、历史Issue、AI社区来寻求解答。祝您生活愉快～

Hi! We've received your issue and please be patient to get responded. We will arrange technicians to answer your questions as soon as possible. Please make sure that you have posted enough message to demo your request. You may also check out the API，FAQ，Github Issue and AI community to get the answer.Have a nice day!

[GuoxiaWang]

从错误信息看， args.backend 是 .，请确认一下，是否符合输入的规定

[sweetboxwwy]

从错误信息看， args.backend 是 .，请确认一下，是否符合输入的规定

代码参考的官方的，没有修改过。https://github.com/PaddlePaddle/Paddle-Lite/blob/develop/lite/demo/python/mobilenetv1_full_api.py

[GuoxiaWang]

从代码上看， 是在这行报错了 https://github.com/PaddlePaddle/Paddle-Lite/blob/develop/lite/demo/python/mobilenetv1_full_api.py#L185

从逻辑上看，是需要手工设定 backend 的。

可选项参考参数说明 https://github.com/PaddlePaddle/Paddle-Lite/blob/develop/lite/demo/python/mobilenetv1_full_api.py#L45

[paddle-bot[bot]]

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