[wix-users] Managed Bootstrapper: Error 0x80070002: Failed while prompting for source

[Farrukh Waheed]

Hi Experts,
I'm delivering 3 msi packages in my Managed Bootstrapper (MBA). User is
given choice to select which packages he/she wants to install. All goes
well. When user tries to Modify the installation from Control Panel,
selects new package from dialog and original source (MBA.exe) is missing,
installation failed with following log:

[553C:0A88][2016-03-30T16:00:54]w341: Prompt for source of container:
WixAttachedContainer, path: D:\work\MBA.Install.Bundle\bin\Debug\MBA.exe
[553C:0A88][2016-03-30T16:00:54]e054: Failed to resolve source for file:
D:\work\MBA.Install.Bundle\bin\Debug\MBA.exe, error: 0x80070002.
[553C:0A88][2016-03-30T16:00:54]e000: Error 0x80070002: Failed while
prompting for source (original path
'D:\work\MBA.Install.Bundle\bin\Debug\MBA.exe').
[553C:0A88][2016-03-30T16:00:54]e311: Failed to acquire container:
WixAttachedContainer to working path:
C:\Users\Me\AppData\Local\Temp\{1338381A-F85F-4B6D-83EA-A0A2D1A369C1}\10A35D6D6CAC04B3DC248033B1588CBD67AD698B,
error: 0x80070002.
[553C:0A88][2016-03-30T16:00:54]i000: CachePackageComplete:
Pkg_Id=EMS.Server Resulted=None
[553C:0A88][2016-03-30T16:00:54]i000: CacheComplete: Status=-2147024894
[553C:3C24][2016-03-30T16:00:54]e000: Error 0x80070002: Failed while
caching, aborting execution.

I've tried to capture this in ResolveSource event handler. e.LocalSource
and e.DownloadSource are readonly properties. There is not criteria to
download missing file, all needs to be present locally.

I read about the Propmpt to get the Source of original installer here:
https://blogs.msdn.microsoft.com/heaths/2007/10/25/resolvesource-requires-source/

but this is about msi installer, while in my MBA, this dialog is
suppressed.

How can I take set the LocalSource manually (may be by taking input via
dialog from user)?
Can I set WixAttachedContainer to some other working path at runtime but
taking input from user?

Thanks a bunch...