community[patch]: helpful error message for GitHubAPIWrapper (#14803)

Very simple change in relation to the issue #14550 @baskaryan, @eyurtsev, @hwchase17. --------- Co-authored-by: Harrison Chase <[email protected]> Co-authored-by: Bagatur <[email protected]>
langchain-ai · Dec 19, 2023 · e3abe12 · e3abe12
1 parent 922693c
commit e3abe12
Showing 1 changed file with 10 additions and 2 deletions.
diff --git a/libs/community/langchain_community/utilities/github.py b/libs/community/langchain_community/utilities/github.py
@@ -76,8 +76,16 @@ def validate_environment(cls, values: Dict) -> Dict:
             private_key,
         )
         gi = GithubIntegration(auth=auth)
-        installation = gi.get_installations()[0]
-
+        installation = gi.get_installations()
+        if not installation:
+            raise ValueError(
+                f"Please make sure to install the created github app with id "
+                f"{github_app_id} on the repo: {github_repository}"
+                "More instructions can be found at "
+                "https://docs.github.com/en/apps/using-"
+                "github-apps/installing-your-own-github-app"
+            )
+        installation = installation[0]
         # create a GitHub instance:
         g = installation.get_github_for_installation()
         repo = g.get_repo(github_repository)