Sreekanth,
I have no idea how you got yourself into your situation. I was able to duplicate the problem by manipulating the workspace directories with File Explorer, something one should never do. (Not an accusation. 
) The html and xml files are generated, so there should be no need even to open the User Interface Components node/directory.
The Hello World application is intended to showcase Natural’s ability to use webpages for input and output. Creating a webpage is relatively simple, but I wouldn’t try fixing one before building a bit of experience with Docker, Natural, and ONE. Rather than regenerating the missing components, I recommend refreshing the application.
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Delete project NaturalONE Hello World Sample Application, taking the Delete project contents on disk option.
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Click Help → Welcome
- Select the Hello World application to restore it.
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Open the project’s Properties.
- Natural → Runtime
- Host name is your IP address (likely same as specified during Docker installation)
- Port number 2700
- Natural → Runtime
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Project context menu
- Rebuild Natural Project
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HELLO-P.NSP context menu
- Run As -->Natural Application
ps The installation instructions must have been fairly good, seeing as I have it all installed and running, but several times I found myself asking “What does that mean?” or “Where exactly do I do that?” because I had no prior Docker experience.