Smaller bugfixes

src/cpl_cli/cli.py

@@ -1,9 +1,9 @@
 from typing import Optional
 
 from cpl.application.application_abc import ApplicationABC
-from cpl.console.console import Console
 from cpl_cli.command import Command
 from cpl_cli.command_handler import CommandHandler
+from cpl_cli.error import Error
 from cpl_cli.commands.help import Help
 from cpl_cli.commands.version import Version
 
@@ -23,8 +23,7 @@ class CLI(ApplicationABC):
 
     def main(self):
         if len(self._configuration.additional_arguments) < 1:
-            Console.error(f'Expected command')
-            Console.error('Run \'cpl help\'')
+            Error.error(f'Expected command')
             return
 
         self._command_handler.handle(self._configuration.additional_arguments[0], self._configuration.additional_arguments[1:])