diff --git a/doc/using-uno-resizetizer.md b/doc/using-uno-resizetizer.md
index b98eb766..c92c549b 100644
--- a/doc/using-uno-resizetizer.md
+++ b/doc/using-uno-resizetizer.md
@@ -448,4 +448,10 @@ In some cases, the OS caches the app icon and your changes might not be applied.
 2. Restart `explorer.exe` process (in **Task Manager - Details** select `explorer.exe` in the list and click on **Restart task**).
 3. Reboot your PC
 
-Afterward, try to deploy the app again and your icons should be updated correctly.
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+Afterward, try to deploy the app again and your icons should be updated correctly.
+
+### Icon Assets
+
+The Icon Extension generation will not succeed if the project cannot find `/Assets/Icons/icon.svg` and `/Assets/Icons/icon_foreground.svg`. You can find the related GitHub issue [here](https://github.com/unoplatform/uno.resizetizer/issues/289).
+
+Without these icon assets, a reference error will occur: _CS0234: The type or namespace name 'Resizetizer' does not exist in the namespace 'Uno' (are you missing an assembly reference?)_.
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