# MPA to ROS tflite_data

Source: https://forum.modalai.com/topic/2023/mpa-to-ros-tflite_data
Category: General Questions (https://forum.modalai.com/category/2/general-questions)
Posted: 2023-03-30 23:35:56 UTC by Eli Pollack
Replies: 1 · Views: 645

## Eli Pollack · 2023-03-30 23:35:56 UTC

Hello, 

I am trying to look at the messages coming from /tfite_data, however when using rostopic echo it throws the following error:

"cannot load message class for [voxl_mpa_to_ros/AiDetection]. Are your messages built?". 

How can I view the messages?

Thanks.

## Reply by aashry · 2023-07-08 23:45:28 UTC

Hello @Eli-Pollack! 

Have you been able to figure it out? I'm running into the same problem now and I found your question.