[WiX-users] question about errors with WixUI_Mode and WixUI_Advanced as a starting dialog set.

[Dave C. <dav...@ka...>]

I'm trying to use the WixUI_Advanced dialog set as a starting point, but
replacing various dialogs and adding others of my own.  When I specify
AdvancedWelcomeEulaDlg, things compile and link okay.  When I try to change
that to LicenseAgreementDlg instead, I get an error

error LGHT0094 : Unresolved reference to symbol
'WixAction:InstallUISequence/LicenseAgreementDlg' in section 'Fragment:'.

Based on copying WixUI_Advanced.wxs as my starting file, I see an entry

<Property Id="WixUI_Mode" Value="Advanced" />

My question: I've seen various posts on the list saying that (as I interpret
them), this WixUI_Mode setting is no longer used/needed.  When I commented
it out, the same error reoccurred.  What should I be doing if I want to
reference a standard dialog like LicenseAgreementDlg that isn't by default
in the WixUI_Advanced dialog set?  I was sort of assuming that any standard
dialog can be used as long as I make a DialogRef to it, but that appears not
to be the case.  Can anybody explain what's going on?  Note that I'm using
Wix v3.5.  What I'm really trying to end up with is not "advanced + new
dialog or - existing dialog" but "entirely custom set of dialogs that
happens to contain several standard dialogs from UIExtension.  I assume
that's possible but it's not clear how to do that.

Any help would be appreciated!
Dave