Merge pull request #7877 from RasaHQ/fix-issue-7069

Update UnsupportedModelError
RasaHQ · Feb 7, 2021 · 78a76e2 · 78a76e2
2 parents c5ee208 + 5efe892
commit 78a76e2
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diff --git a/changelog/7069.improvement.md b/changelog/7069.improvement.md
@@ -0,0 +1 @@
+Updated error message when using incompatible model versions.
diff --git a/rasa/nlu/model.py b/rasa/nlu/model.py
@@ -289,12 +289,11 @@ def ensure_model_compatibility(
         model_version = metadata.get("rasa_version", "0.0.0")
         if version.parse(model_version) < version.parse(version_to_check):
             raise UnsupportedModelError(
-                "The model version is too old to be "
-                "loaded by this Rasa NLU instance. "
-                "Either retrain the model, or run with "
-                "an older version. "
-                "Model version: {} Instance version: {}"
-                "".format(model_version, rasa.__version__)
+                f"The model version is trained using Rasa Open Source {model_version} "
+                f"and is not compatible with your current installation ({rasa.__version__}). "
+                f"This means that you either need to retrain your model "
+                f"or revert back to the Rasa version that trained the model "
+                f"to ensure that the versions match up again."
             )
 
     @staticmethod