improve error message for outdated Blender version

CHANGELOG.md

@@ -4,6 +4,9 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ## unreleased
+### Changed
+* Improved the error message when attempting to install the addon on an unsupported Blender version.
+
 ### Fixed
 * Fixed an issue where exporting would fail if an image texture did not use the expected naming convention.
 * Fixed an issue where some models would not correctly generate outline meshes for all relevant meshes.

xenoblade_blender/__init__.py

@@ -55,6 +55,13 @@ def menu_import_camdo(self, context):
 
 
 def register():
+    if bpy.app.version < bl_info["blender"]:
+        current_version = ".".join(str(v) for v in bpy.app.version)
+        expected_version = ".".join(str(v) for v in bl_info["blender"])
+        raise ImportError(
+            f"Blender version {current_version} is incompatible. Use version {expected_version} or later."
+        )
+
     for cls in classes:
         bpy.utils.register_class(cls)