In the luis hoist view, Keep getting error: Can't read property "start" of undefined

[luhan2017]

Describe the bug

Electron 1.1.1

When I edit the luis hoist view,

Input this:

• my name is {@userName=luhan}
  @ prebuilt personName hasRoles userName

I keep getting this error, and it can't be fixed whatever I type.

Then my bot is totally broken.

Version

Browser

• Electron distribution
• Chrome
• Safari
• Firefox
• Edge

OS

• macOS
• Windows
• Ubuntu

To Reproduce

Steps to reproduce the behavior:

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior

Screenshots

Additional context

[zhixzhan]

Tracked & fixed in CLI via microsoft/botframework-cli#989
LU package update in composer via #4610