[topics_quiz.launch] is neither a launch file in package [topics_quiz] nor is [topics_quiz] a launch file name The traceback for the exception was written to the log file

I have a problem, I can´t run any .launch, in all cases the error is:

(Yesterday I could do it)

[topics_quiz.launch] is neither a launch file in package [topics_quiz] nor is [topics_quiz] a launch file name
The traceback for the exception was written to the log file

Hi @sergio.segovia.gonzalez,

Welcome to the Community!

To help you better, could you please share a screenshot showing the command you ran and the error output?

Are you having problems with only this package or every package? Could you please try the following?

cd ~/catkin_ws
catkin_make
rospack profile
source devel/setup.bash
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Hi @sergio.segovia.gonzalez,
Also keep in mind, that the name of the package is not defined by your folder name, but by the name defined in the CMakeLists.txt and package.xml. This can be a common mistake when copying those files from a different package. It’s always best to use
catkin_create_pkg <package_name>
And then to only copy paste specific lines from another package, such as dependencies.

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