Prebuilt entity misleading error message

[MatteoMeil]

Describe the bug

When using some prebuilt entities not available in selected locale (culture), instead of throwing error or outputting a warning it says a completely different message. E.g.: this error message is outputted with it-it using geographyV2

Luis build failed: [ERROR] line 20:0 - line 20:1: Invalid child entity definition found. No definition found for "geographyV2" in child entity definition "- @ ml MLSubEntity usesFeature geographyV2". Features must be defined before they can be added to a child.

Related issues:

• BFCLI#1292
• BFCLI#1293
• [MCS-DE] Syntax Validation LU preBuild Entities does not consider locale #8475

Version

Version: 2.1.1
Electron: 8.2.4
Chrome: 80.0.3987.165
NodeJS: 12.13.0
V8: 8.0.426.27-electron.0

Browser

• Electron distribution
• Chrome
• Safari
• Firefox
• Edge

OS

• macOS
• Windows
• Ubuntu

To Reproduce

Steps to reproduce the behavior:

1. Create a new Bot
2. Change locale to something different from en-us
3. Create a new Intent recognizer that uses LUIS
4. Insert some prebuilt entity not available for current locale
5. Try to build the bot

Expected behavior

It should tell the user that the prebuilt entity is not available.

Screenshots

Not applicable

Additional context

This error is due to the fact that Builder is constructed in this line passing a log function.
This way, bf-cli outputs a warning (see here) that's not captured by Composer.

Referenced issues on bf-cli already address this problem

[compulim]

@tonyanziano I think this is a solid bug we want to take, right?

[tonyanziano]

@compulim I think it is an issue that should be fixed, however I am unclear on how we should prioritize it given the PVA work items.

@srinaath / @cwhitten any comments?