Add more information to __fbBatchedBridge is undefined error

facebook · Jul 25, 2017 · 6fa6fff · 6fa6fff
1 parent 042f254
commit 6fa6fff
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/React/Executors/RCTJSCExecutor.mm b/React/Executors/RCTJSCExecutor.mm
@@ -596,7 +596,12 @@ - (void)_executeJSCall:(NSString *)method
       }
     } else {
       if (!errorJSRef && JSC_JSValueGetType(ctx, batchedBridgeRef) == kJSTypeUndefined) {
-        error = RCTErrorWithMessage(@"Unable to execute JS call: __fbBatchedBridge is undefined");
+        error = RCTErrorWithMessage(@"Unable to execute JS call: __fbBatchedBridge is undefined. This can happen "
+                                    "if you try to execute JS and the bridge has not set up, for example if it encountered "
+                                    "an incomplete bundle or a fatal script execution error during startup. You might try"
+                                    "double checking that the bundle loaded correctly, or resetting the state of React Native"
+                                    "devtools on your device (e.g. by uninstalling and reinstalling your app from the device"
+                                    "home screen).");
       }
     }