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
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.
Just opened up a project that I hadn't touched since before summer. I've updated Xamarin on the Mac and on my PC (Visual Studio Extension). Tried to build, but instantly get the following:
An error occured on client Build420703 while executing a reply for topic xvs/Build/184.108.40.2063/execute-task/Merlot.App.iOS/a637169%2FACTool
Diagnostic output gives me the following:
C:\Program Files (x86)\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(1028,3): warning : An error occured on the receiver while executing a post for topic xvs/Build/220.127.116.113/execute-task/Merlot.App.iOS/a637169%2FACTool and client build2444cybro
1>C:\Program Files (x86)\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(1028,3): warning : An error occured on client Build420703 while executing a reply for topic xvs/Build/18.104.22.1683/execute-task/Merlot.App.iOS/a637169%2FACTool
1>C:\Program Files (x86)\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(1028,3): warning : at Xamarin.Messaging.Client.MessagingClient.<PostAsync>d__23`2.MoveNext() in c:\Users\builder\data\lanes\3822\3b7df6f5\source\xamarinvs\src\Messaging\Xamarin.Messaging.Client\MessagingClient.cs:line 178
1>C:\Program Files (x86)\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(1028,3): error : An error occured on client Build420703 while executing a reply for topic xvs/Build/22.214.171.1243/execute-task/Merlot.App.iOS/a637169%2FACTool
A new/empty cross platform (shared) project builds without any issue.
Btw, why haven't you fixed the template for shared cross platform, it's still missing the Ad-Hoc and AppStore build configurations.
Created attachment 17897 [details]
The stripped out iOS part of the project.
Oh joys, getting the same thing.
Severity Code Description Project File Line Suppression State
Error An error occured on client Build420703 while executing a reply for topic xvs/Build/126.96.36.1993/execute-task/PositionFinder.iOS/007aa8d%2FACTool PositionFinder.iOS
Cross platform PCL (not shared)
Xamarin 188.8.131.523 (3b7df6f)
Visual Studio extension to enable development for Xamarin.iOS and Xamarin.Android.
Xamarin.Android 184.108.40.206 (96c7ba6)
Visual Studio extension to enable development for Xamarin.Android.
Xamarin.iOS 10.0.1.10 (ad1cd42)
Visual Studio extension to enable development for Xamarin.iOS.
iOS BUild host: EL Capitan 10.66.6, latest xcode.
I am also facing the same issue.
Rebuild failure because of this error.I updated the new version of iOS and xamarin in visual studio on 11th oct and it worked for all these 3 days, but now it's an error.
An error occured on client Build420703 while executing a reply for topic xvs/Build/220.127.116.113/execute-task/
Same issue here, everything was building properly yesterday, and today when i opened back my project, impossible for me to build with the same error message.
Hi all, thanks for reporting!
I was able to reproduce this issue using the attached solution and found out the build is failing because there are references to a LaunchImage in the csproj, but the referenced files are missing.
We need to understand why those files are missing to be sure that’s not being caused by a bug:
-Did you try to delete the LaunchImage using the Assets editor?
-Are you using a source control and those files were never added there?
-Did you manually deleted those files?
To check which Asset file is missing you could check the XMA Build Agent log.
In the other hand, we will work to improve the error message thrown in Visual Studio.
I don't remember touching those files, but I can definitely say that I didn't touch them between the project building, updating Xamarin and then getting the build error.
on my side the issue was related to a missing Assets.xcassets file :
- i made a branch of my project in TFS, however i discovered that Assets.xcassets files are not added automatically to source control, you need to do it manually through Team Source Explorer.
However watching at the log files never gave me a clue on what was the issue, i just had this generic error with no detail at all...
Thanks, have a nice day !
Thanks for the pointers.
When you branch the solution in TFS (2012) It added this item group that previously didn't exist.
Removing it from the branched solution allows compiling again.
@cybrosys: could you please confirm if you're still able to reproduce the issue or if the any of the above ideas/solutions works for you too? Thanks, Adrian
We have added several improvements around xcassets from the time the bug has been reported.
Given that we didn't get more information or feedback about it, we are closing this bug as Resolved.
If you’re still facing this issue with current 15.3 Xamarin bits, please feel free to reopen the bug.