ROS program compilation, like no compilation, refers to the execution of the old compiled executable program

Problem description :ROS Program compilation is the same as no compilation , It refers to the old compiled executable program ,

lookup

When you find the executable file on the Internet, you can find it in devel Below share in , Delete the same folder as the Feature Pack , After that, the program is compiled but still executed , View the speaking time later devel Below lib Is an executable file , Delete the duplicate name folder of the function package , Compile and report an error after deletion , The hint could not be found devel Below lib What files in . Then create a new empty workspace , Compare the folder with the folder in the new workspace .

solve

Deleted devel Below share Folder ,
Deleted devel Below lib All files in
Deleted build The following feature packs are the same folder .
Then compile again and there will be no errors .