How to fix "Could not create settings" (#3350)

* How to fix "Could not create settings"

I added an explanation for what to do if you get an error "Warning: Could not create settings".

* Update getting_started/workflow/export/android_custom_build.rst

Co-authored-by: Max Hilbrunner <[email protected]>

getting_started/workflow/export/android_custom_build.rst

@@ -121,6 +121,7 @@ Afterwards, install the platform tools (this is required to install ``adb``):
 
 .. image:: img/custom_build_platform_tools.png
 
+If you get an error saying ``Warning: Could not create settings``, try ``./sdkmanager --sdk_root=../../ --licenses`` or ``./sdkmanager --sdk_root=../../ platform-tools``. These must be executed inside the ``/tools/bin/`` folder because the path for ``--sdk_root`` is relative.
 
 Generating the keystore
 ^^^^^^^^^^^^^^^^^^^^^^^