When you open Fiori launchpad, you can only see empty screen with the following error message:

Here below are the steps how to avoid this error.
step1
在line 79處設定斷點。重新launch UI,斷點觸發,使用debugger shift+F12直接跳至方法末尾:
step2
由于step1直接用debugger跳過,是以cached的navigation tree為initial,是以進入IF 分支line 13的執行:
之後可成功取回tile configuration information: