We have an ArcMap Desktop add-in, created a few years ago using ArcObjects in .NET framework 3.5. I'm looking into updating it to framework 4.5 (or 4.5.1) to be compatible with a newer project that it needs to use now.
I've bumped it up to 4.5 in a test copy and I'm not seeing any errors or erratic behavior (in the few minutes I tested it) but I'm wondering if anyone has been through this process and has had any issues down the road or has any suggestions on what I should be on the lookout for.
Also, when I bump the test copy up to 4.5.1 I do get the following error. I'll research this one myself as well, but in case this is related the experience anyone else has had so I'm adding it in.
Error 2 The "ValidateAddInXMLTask" task failed unexpectedly. System.FormatException: Input string was not in a correct format.
at System.Number.ParseDouble(String value, NumberStyles options, NumberFormatInfo numfmt) at ESRI.ArcGIS.AddIns.SDK.Utilities.ToAddInCLRLanguage(String strTargetFramework) at ESRI.ArcGIS.AddIns.MSBuild.ValidateAddInXMLTask.Execute() at Microsoft.Build.BackEnd.TaskExecutionHost.Microsoft.Build.BackEnd.ITaskExecutionHost.Execute() at Microsoft.Build.BackEnd.TaskBuilder.d__26.MoveNext() NDOTGeolocator