Update app.py

app.py

@@ -36,7 +36,10 @@ def is_ui_file(filename):
 def get_file_contents(git_provider, repo_url, exclude_folders):
     file_contents = []
     logger.info(f"Fetching files from {git_provider} repository: {repo_url}")
-    exclude_folders = [folder.strip() for folder in exclude_folders.split(',') if folder.strip()]
+    if exclude_folders is None:
+        exclude_folders = []
+    else:
+        exclude_folders = [folder.strip() for folder in exclude_folders.split(',') if folder.strip()]
     if git_provider == "GitHub":
         g = Github(GITHUB_TOKEN)
         repo = g.get_repo(repo_url)
@@ -259,7 +262,8 @@ app.layout = dbc.Container([
     [State("git-provider", "value"),
      State("repo-url", "value"),
      State("guide-type", "value"),
-     State("exclude-folders", "value")]
+     State('exclude-folders-input', 'value')]
+    
 )
 def update_output(n_clicks, git_provider, repo_url, guide_type, exclude_folders):
     if n_clicks is None: