Error while build project Xcode says : "you don't have permission"

Go up to the folder containing the project in your Finder.

Right Click > Get Info

Go to the bottom of the Info pane, and click the little lock, type in your password when prompted.

Then, change permissions for yourself to read+write.

Click the little gear below, and apply to all enclosed items.

Close the lock once you are finished!

If this doesn't work, Change the value of "Compiler for C/C++/Objective-C" to "Default Compiler (Apple Clang)" under the Build Settings of your target.

The project i have download from the internet don't have the Executable file in info.plist which should be there and its value should be this ${EXECUTABLE_NAME}. Instead of this value it consist some different value. So i have changed it ${EXECUTABLE_NAME} this value then clean->build->run successfully.

None of the answers helped me. Although the build was successful i got the error while trying to run the project. Accidentally while cloning the project, there were no files under the Build Phases -> Compile Sources.This might have happened while working on a team in git.

Files under compile sources may be the entry point to be able to build/run the project.

Once i added the AppDelegate & ViewController file in compile sources i was able to run the project without any error.