Cannot modify an evaluated object originating in an imported

[pepone]

You can get this exception when rebuild a .NET Core system project

System.InvalidOperationException: Cannot modify an evaluated object originating in an imported file "C:\Program Files\dotnet\sdk\3.0.100-preview-009812\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.Sdk.DefaultItems.props".
   at Microsoft.Build.Shared.ErrorUtilities.ThrowInvalidOperation(String resourceName, Object[] args)
   at Microsoft.Build.Evaluation.Project.VerifyThrowInvalidOperationNotImported(ProjectRootElement otherXml)
   at Microsoft.Build.Evaluation.Project.RemoveItemHelper(ProjectItem item)
   at Microsoft.Build.Evaluation.Project.RemoveItems(IEnumerable`1 items)
   at Microsoft.VisualStudio.ProjectSystem.Items.SourceItemsService.<RemoveItemsFromProjectAsync>d__110.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.VisualStudio.ProjectSystem.ProjectItemProviderBase`1.<>c__DisplayClass76_0.<<RemoveAsync>b__0>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.VisualStudio.ProjectSystem.ProjectLockService.<ExecuteWithinLock>d__117.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at Microsoft.VisualStudio.ProjectSystem.ProjectLockService.<ExecuteWithinLock>d__117.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.VisualStudio.ProjectSystem.Items.SourceItemsService.<RemoveAsync>d__82.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task)
   at Microsoft.VisualStudio.ProjectSystem.Designers.PhysicalProjectTreeActionHandler.<RemoveAsync>d__41.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.VisualStudio.ProjectSystem.Designers.PhysicalProjectTreeProvider.<>c__DisplayClass69_0.<<RemoveAsync>b__0>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.VisualStudio.Threading.JoinableTask.<JoinAsync>d__65.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.VisualStudio.ProjectSystem.ProjectLockService.<ExecuteWithinLock>d__115.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at Microsoft.VisualStudio.ProjectSystem.ProjectLockService.<ExecuteWithinLock>d__115.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.VisualStudio.ProjectSystem.VS.Implementation.Package.Automation.OAProjectItem.<<Delete>b__49_0>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.VisualStudio.ProjectSystem.VS.Implementation.Package.Automation.OAProject.<>c__DisplayClass69_0.<<Mutate>b__0>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.VisualStudio.ProjectSystem.VS.Implementation.Package.ProjectNode.<>c__DisplayClass563_0.<<Mutate>b__0>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.VisualStudio.Threading.JoinableTask.CompleteOnCurrentThread()
   at Microsoft.VisualStudio.ProjectSystem.ProjectMultiThreadedService.ExecuteSynchronously(Func`1 asyncAction)
   at Microsoft.VisualStudio.ProjectSystem.VS.Implementation.Package.ProjectNode.Mutate(Func`1 asyncAction, Boolean includesFileSystemChange, String telemetryActivity)
   at Microsoft.VisualStudio.ProjectSystem.VS.Implementation.Package.Automation.OAProject.Mutate(Func`1 asyncAction, Boolean includesFileSystemChange, String telemetryActivity)
   at Microsoft.VisualStudio.ProjectSystem.VS.Implementation.Package.Automation.OAProjectItem.Delete()
   at IceBuilder.IVsProjectExtension.DeleteItems(IVsProject project, List`1 paths)
   at IceBuilder.ProjectUtil.SetupGenerated(IVsProject project) in D:\3.7\ice-builder-visualstudio\IceBuilder\ProjectUtil.cs:line 473
   at IceBuilder.Package.BuildEvents_OnBuildBegin(vsBuildScope scope, vsBuildAction action) in D:\3.7\ice-builder-visualstudio\IceBuilder\Package.cs:line 5891>------ Rebuild All started: Project: client (Glacier2\callback\msbuild\client\client), Configuration: Debug Any CPU ------
1>C:\Program Files\dotnet\sdk\3.0.100-preview-009812\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.RuntimeIdentifierInference.targets(142,5): message NETSDK1057: You are using a preview version of .NET Core. See: https://aka.ms/dotnet-core-preview
1>Compiling ../../../Callback.ice Generating -> generated\Callback.cs
1>client -> D:\3.7\ice-demos\csharp\Glacier2\callback\client.dll
========== Rebuild All: 1 succeeded, 0 failed, 0 skipped ==========