When I unpack same the zip and zip again without modification
....which doesn't seeem to be a very useful action...
The app is giving like HTML scrambled output.
So, something must have been changed, then. The webview component obviously doesn't consider your code to be valid html and fails to parse it.
Hard to say what happened without seeing your zip file. Where is it?
It was building without any problem.
Are you saying it doesn't build now, or the build process returns error messages?