After reinstall 8.4.96.2033, the problem is still not resolved on my computer.
Now I know all Elements VS template files and I can ensure the Elements is reinstalled cleanly with all template files updated.
So I try to fix it by myself…
The vs template file is at:
C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE\ProjectTemplatesCache\Hydrogene\Echoes\Windows Universal\1033\BlankApplication.zip\BlankApplication.vstemplate
I open it and compare it to the MS official one at:
C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE\ProjectTemplatesCache\CSharp\Windows Root\Windows UAP\1033\BlankApplication\BlankApplication.vstemplate
Here’s the difference and the cause of my problem:
The left one is Elements template file. I delete the red text block, and everything works again.