The command has indeed failed with message: A fully applied tactic is expected: missing argument for variable x. The command has indeed failed with message: A fully applied tactic is expected: missing argument for variable x. The command has indeed failed with message: A fully applied tactic is expected: missing arguments for variables y and _. The command has indeed failed with message: A fully applied tactic is expected: missing argument for variable x. The command has indeed failed with message: A fully applied tactic is expected: missing argument for variable x. The command has indeed failed with message: A fully applied tactic is expected: missing argument for variable _. The command has indeed failed with message: A fully applied tactic is expected: missing argument for variable _. The command has indeed failed with message: A fully applied tactic is expected: missing argument for variable _. The command has indeed failed with message: A fully applied tactic is expected: missing argument for variable x. The command has indeed failed with message: A fully applied tactic is expected: missing argument for variable x.