catkin_make install issue: no launch files and so on in share folder

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Hi guys, I'm trying to build a package and transfer the install folder to another pc so that the source code is not given out. According to my reading, I simply have to do 'catkin_make install' and move the install folder to another pc. Is that correct?

After doing this and source the install/setup.bash, I can't find anything executable, only cmake and package.xml in the share/targetPKG folder.

However, I can launch the package normally when sourcing the devel/setup.bash.

Can someone give me some advice on how to solve this? Is it some problem with my package or I did something wrong with catkin_make install?

Or is there other easy way to migrate the package without giving source code?