diff --git a/src/logwatcher/cli.py b/src/logwatcher/cli.py
index e2305e0..ae25c02 100644
--- a/src/logwatcher/cli.py
+++ b/src/logwatcher/cli.py
@@ -43,6 +43,7 @@ def _is_log_file(path: Path) -> bool:
 
 def _get_files_from_dir(input_dir: Path) -> list[Path]:
     if not input_dir.exists():
+        logger.error(f"Unrecognized input directory '{input_dir}'.")
         raise FileNotFoundError(f"No such directory at '{input_dir}'")
     return [file for file in input_dir.iterdir() if _is_log_file(file)]
 
@@ -51,6 +52,7 @@ def _files_to_log_entries(input_files: list[Path]) -> list[LogEntry]:
     log_entries = []
     for file in input_files:
         if not file.is_file():
+            logger.error(f"Unrecognized input file '{file}'.")
             raise ValueError(f"'{file}' is not a file")
         log_entries.extend(parse_log_file(file))
     return log_entries
@@ -110,6 +112,7 @@ def cli(
         logger.info(f"input_dir option selected with value {input_dir}")
         log_files = _get_files_from_dir(input_dir)
     else:
+        logger.error("Neither input-files nor input-dir were provided.")
         raise typer.BadParameter("Either input_files or input_dir must be provided")
 
     logger.info(f"reports will be located at '{output_dir.cwd()}'")