Merge pull request #4284 from reduxjs/bugfix/rtk2-legacy-esm-config

Author: markerikson

errors.json

@@ -37,5 +37,6 @@
   "35": "Existing Redux context detected. If you already have a store set up, please use the traditional Redux setup.",
   "36": "When using custom hooks for context, all  hooks need to be provided: .\\nHook  was either not provided or not a function.",
   "37": "Warning: Middleware for RTK-Query API at reducerPath \"\" has not been added to the store.\n    You must add the middleware for RTK-Query to function correctly!",
-  "38": "Cannot refetch a query that has not been started yet."
-}
+  "38": "Cannot refetch a query that has not been started yet.",
+  "39": "called \\`injectEndpoints\\` to override already-existing endpointName  without specifying \\`overrideExisting: true\\`"
+}

packages/toolkit/tsup.config.ts

@@ -71,7 +71,7 @@ const buildTargets: BuildOptions[] = [
   {
     format: 'esm',
     name: 'legacy-esm',
-    target: 'esnext',
+    target: 'es2017',
     minify: false,
     env: '',
   },