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处设置断点。重新launch UI,断点触发,使用debugger shift+F12直接跳至方法末尾:
step2
由于step1直接用debugger跳过,因此cached的navigation tree为initial,因此进入IF 分支line 13的执行:
之后可成功取回tile configuration information: