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 or GitHub 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.
I get a NullReferenceException while trying to create a "C# Gtk 2.0" Project.
The same error occurs when I try to create a new "Android Application" or a "Console Application".
System.TypeInitializationException: The type initializer for 'MonoDevelop.Projects.Policies.PolicyService' threw an exception. ---> System.NullReferenceException: Object reference not set to an instance of an object.
--- End of inner exception stack trace ---
at MonoDevelop.Projects.DotNetProject.GetDefaultNamespace(String fileName)
at MonoDevelop.Ide.Templates.SingleFileDescriptionTemplate.ModifyTags(SolutionItem policyParent, Project project, String language, String identifier, String fileName, Dictionary`2& tags)
at MonoDevelop.Ide.Templates.SingleFileDescriptionTemplate.GetFileName(SolutionItem policyParent, Project project, String language, String baseDirectory, String entryName)
at MonoDevelop.GtkCore.WidgetFileDescriptionTemplate.AddToProject(SolutionItem policyParent, Project project, String language, String directory, String name)
at MonoDevelop.Ide.Templates.ProjectDescriptor.InitializeItem(SolutionItem policyParent, ProjectCreateInformation projectCreateInformation, String defaultLanguage, SolutionEntityItem item)
=== Xamarin Studio ===
Version 4.0 (build 2003)
Installation UUID: ad9a2d67-c4be-4c6c-b896-dcbe196e82db
Microsoft .NET 4.0.30319.18033
=== Xamarin.Android ===
Version: 4.6.0 (Starter Edition)
Android SDK: C:\Users\joao\AppData\Local\Android\android-sdk
Supported Android versions:
2.1 (API level 7)
2.2 (API level 8)
2.3 (API level 10)
3.1 (API level 12)
4.0 (API level 14)
Java SDK: C:\Program Files (x86)\Java\jdk1.6.0_39
=== Build Information ===
Git revision: Release ID: 400002003
Build date: 2013-02-19 19:47:39Z
Xamarin addins: b7a7aff09b352c13ded8a27439fd6d2250361511
=== Operating System ===
Windows 6.2.9200.0 (64-bit)
*** Bug 10495 has been marked as a duplicate of this bug. ***
The only way I can see this could happen is if Mono.Addins failed to return the Invariant policy set.
By checking the user name (João) and mine I think we`re both from Brazil. Despite my Windows being English version this may have something to do with Culture information?
Just a wild guess
*** Bug 10519 has been marked as a duplicate of this bug. ***
Hi, I'm from Brazil and I'm getting the same issue, both Windows and Mac Os. I can't open/create any solution.
This may be related to bug 10547.
Steps to reproduce:
1 - Open Windows Region settings
2 - Select tab Formats
3 - Change the combo Format to: "Portuguese (Brazil)"
4 - Apply
5 - Launch Xamarin Studio again and create a new solution.
A workarround on this bug is to change the format to "English (United States)".
The problem is when I open Settings windows I'm getting the same issue and can't change Format!
I'm sorry if it is not clear, but you need to change your region under Windows OS, control panel.
1 - Open Windows Control Panel
2 - Change View by to Category
3 - On the right side, under Clock, Language, and Region, select "Change date, time, or number formats"
4 - Under Formats: change your "Format" option.
Confirmed, GetPolicySet ("Invariant") returns null when format settings are pt-br.
The problem is that GetPolicySet (string name) checks name, not ID, and the name is translated to "Invariante".
I'm not sure why we use the format settings as the UI language, that seems like a bug too.
Lluis, Duncan, we should probably do a hotfix for this.
*** Bug 10602 has been marked as a duplicate of this bug. ***
I am also from Brazil, and changing Windows Settings to English soloved the problem.
Today we have checked this issue with following builds after changing format to "Portuguese (Brazil)". Now we are able to create project successfully.
X.S 4.0 -9b07a6655aa75ea1b870feacd2ac7c53b45d3889
Microsoft .NET 4.0.30319.17929
This is the screencast for the same: http://screencast.com/t/eQF13p7s
Changing the status to Verified.
Where can I get this bug fixed build compiled for Windows?
(Sorry, I am noob here.)
Thanks a lot.
If you run the installer from xamarin.com, it should install Xamarin Studio 4.0.1, which has the fix.
Unfortunetaly I can't run the installer because of some unsolved network issue. Every time I try it I got an "Error downloading from Google server. Android SDK".
So, I went to http://docs.xamarin.com/guides/android/getting_started/installation/windows/manual_installation in Xamarin site and got the file for manual installation today here http://download.xamarin.com/studio/Windows/XamarinStudio-4.0.msi but the bug in this thread is still there.
I couldn't find any other link to XS recent builds.
I am running under workaround posted by Joao Vitor, but I would like to back my system to original regional settings if possible.
You should be able to get an update to 4.0.3 (latest as of Mar 21) from the Xamarin Studio updater.
Thanks for answer.
Unfortunately the XS updater doesn't work in my network company.
I got an "Error retrieving update information", probably some proxy or "safety" policies issues here.
The infrastructure guys were unable to diagnose it until now.
Any other way to download this build?
Maybe I should create an enviroment and build it for myself...
Hi Ed, here's the direct link: http://download.xamarin.com/studio/Windows/XamarinStudio-188.8.131.52.msi
PJ, thanks a lot!
Now running with "Portuguese (Brazil)" without any problem. :)