clean command takes no arguments.
clean removes all intermediate compilation products from the project, and also removes any AURA-specific saved-state (such as compilation state, code hashes, and dependency graphs).
clean does not remove any user configuration. Specifically,
clean will never modify any unit of the AURA subsystem.
Intermediate compilation products does not include the final linked programs, which will remain in the project root.
Depending on the compiler, it may be necessary to delete the linked program if a full recompile is desired. This needs to be done manually
clean is a useful first step in general problem-solving when an AURA project fails to compile properly.