Thank you for looking into this.

[ravijo]

Thank you for looking into this.

I'm running on Ubuntu 18.04 with ROS Melodic and CMake 3.17.1.
Without

find_package(Threads REQUIRED)

building fails with the error message

/usr/bin/ld: cannot find -lThreads::Threads

I'm not sure when this line is needed or not.

Originally posted by @kledom in #11 (comment)

[ravijo]

Hi @kledom

I tested the ros_openpose compilation in the following environment today-

• CMake Version 3.17.2
• GCC Version 7.5.0
• Ubuntu 18.04.4 LTS
• OpenPose Version 1.5.1 and 1.6.0

I didn't encounter any issues.

Nevertheless, thank you very much for reporting this issue, i.e.,cannot find -lThreads::Threads. I have added it to troubleshooting. Please see point #2 here

Thanks again!