Notice (2018-05-24): bugzilla.xamarin.com is now in
Please join us on
Visual Studio Developer Community and in the
Mono organizations on
GitHub to continue tracking issues. Bugzilla will remain
available for reference in read-only mode. We will continue to work
on open Bugzilla bugs, copy them to the new locations
as needed for follow-up, and add the new items under Related
Our sincere thanks to everyone who has contributed on this bug
tracker over the years. Thanks also for your understanding as we
make these adjustments and improvements for the future.
Please create a new report on
GitHub or Developer Community with
your current version information, steps to reproduce, and relevant error
messages or log files if you are hitting an issue that looks similar to
this resolved bug and you do not yet see a matching new report.
Created attachment 7210 [details]
diagnostic build output
This solution (found in bug #20496) is again building successfully on 4.14-series on Mac OSX, however this solution does fail to build on windows. This is _NOT_ a regression from the current stable XA 4.12.5.
(CoreCompile target) ->
GlobalApplication.cs(32,4): error CS0012: The type 'System.Data.Common.DbConn
ection' is defined in an assembly that is not referenced. You must add a refere
nce to assembly 'System.Data, Version=220.127.116.11, Culture=neutral, PublicKeyToken=
b77a5c561934e089'. [C:\Users\PJ Collins\GitRepos\QualityAssurance\Samples\andro
The solution does build successfully if I manually add this reference, but there are no modifications needed for this to build successfully on OSX. I'm wondering why adding a reference to System.Data is requiredto build this solution on windows but not mac. I've attached the diagnostic output from windows
This could also be an xbuild bug ("it should follow MSBuild behavior!") or an xbuild feature ("why shouldn't it behave this way?"), or it's a .NET-version dependent bug (I have no idea what build environment the original customer used to build this project).
In any event, I'm not entirely sure this is an XA issue...
It's most likely either xbuild (if the compiler arguments are same as msbuild) or mcs. Assuming System.Data, Version=18.104.22.168 is provided by XA
@Marek: Yes, Xamarin.Android (and Xamarin.iOS) provide System.Data.dll. (It's used by Mono.Data.Sqlite.dll.)
Fixed in master
This build error is now occurring on mac as well, using mono 3.10. This is a regression from mono 3.8-series.
Mono 3.10-series / ((detached/ac51002 Wed Sep 17 18:34:00 EDT 2014)
XA 4.18 / 04399d62c
Solution fails to build on Windows (.net) and Mono not sure why it's marked as regression
Perhaps I should have filed a new bug for this behavior, but it is the same error. This solution is now failing to build on Mac OSX after installing mono 3.10. This behavior is a regression from desktop mono 3.8 on Mac OSX.
To avoid further confusion, I'll separate this out into two bugs as I should have done in the first place. Please ignore Comments #5-7 as they are no longer valid for this bug, they have been refiled as bug #23455.
This issue has been occurring in XA since at least 4.12.3-3, in fact, I'm not sure it ever successfully built on windows.
This is still an issue in XVS 3.7 (XA 4.18-series). When should we be expecting to see the fix from comment #4?
The project will need to be updated to include a missing reference.