# TF Basic Exercise 1.4

**URL:** <https://get-help.theconstruct.ai/t/tf-basic-exercise-1-4/17889>\
**Category:** TF ROS 101\
**Created:** [June 19, 2022, 6:47pm UTC](https://get-help.theconstruct.ai/t/tf-basic-exercise-1-4/17889 "2022-06-19T18:47:50Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![misbahsuhail123](https://get-help.theconstruct.ai/letter_avatar_proxy/v4/letter/m/85f322/32.png) [@misbahsuhail123](https://get-help.theconstruct.ai/u/misbahsuhail123)\
**Post date:** [June 19, 2022, 6:47pm UTC](https://get-help.theconstruct.ai/t/tf-basic-exercise-1-4/17889/1 "2022-06-19T18:47:50Z")

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Hello,  
In exercise 1.4 of Unit2 (TF Basics) in rviz i am getting this error.

 ![rviz image](https://get-help.robotigniteacademy.com/uploads/default/original/2X/7/731643d92731dcf28b26760d16b8b9bcb5bfbfb3.png)

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**Author:** ![misbahsuhail123](https://get-help.theconstruct.ai/letter_avatar_proxy/v4/letter/m/85f322/32.png) [@misbahsuhail123](https://get-help.theconstruct.ai/u/misbahsuhail123)\
**Post date:** [June 19, 2022, 6:52pm UTC](https://get-help.theconstruct.ai/t/tf-basic-exercise-1-4/17889/2 "2022-06-19T18:52:28Z")

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ok its solved…just by adding TF from list 🙂

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**Author:** ![bayodesegun](https://get-help.theconstruct.ai/user_avatar/get-help.theconstruct.ai/bayodesegun/32/6966_2.png) [@bayodesegun](https://get-help.theconstruct.ai/u/bayodesegun)\
**Post date:** [June 21, 2022, 8:45am UTC](https://get-help.theconstruct.ai/t/tf-basic-exercise-1-4/17889/3 "2022-06-21T08:45:21Z")

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