Hi,
I'm encountering an issue when trying to open a synchronization project in the Synchronization Editor (version 9.3).
As soon as I attempt to load the project, the editor fails with the following error in the log:
System.InvalidOperationException: Sequence contains no matching element
at System.Linq.Enumerable.First[TSource](...)
at VI.Projector.Schema.Properties.AssignmentSchemaTypeInformation..ctor(...)
...
I've confirmed that the project exists in the database and appears available, but the error consistently occurs every time I try to open it.
I also tried loading the same project in another environment, but the issue persists.
2025-07-29 17:32:33.3763 ERROR (ProjectorReader static ) : Sequence contains no matching element System.InvalidOperationException: Sequence contains no matching element at System.Linq.ThrowHelper.ThrowNoMatchException() at System.Linq.Enumerable.First[TSource](IEnumerable`1 source, Func`2 predicate) at VI.Projector.Schema.Properties.AssignmentSchemaTypeInformation..ctor(ISchemaType baseSchemaType, ISchemaClass assignmentSchemaClass, ISchemaProperty assignmentBaseProperty, ISchemaProperty assignmentMembersProperty, IEnumerable`1 members) at VI.Projector.Schema.Properties.AssignmentSchemaTypeInformation.FromXml(XmlElement elem, ISchema schema) at VI.Projector.Schema.Properties.MNSchemaTypeToMembersProperty._GetLookUpTablesFromString(String source) at VI.Projector.Schema.Properties.MNSchemaTypeToMembersProperty.<>c__DisplayClass0_0.<.ctor>b__0() at VI.Projector.Serialization.ProjectorReader.ExecutePostReadActions() at VI.Projector.Serialization.ProjectorReader.Read(ProjectorReaderReadArgs args) at System.Linq.ThrowHelper.ThrowNoMatchException() at System.Linq.Enumerable.First[TSource](IEnumerable`1 source, Func`2 predicate) at VI.Projector.Schema.Properties.AssignmentSchemaTypeInformation..ctor(ISchemaType baseSchemaType, ISchemaClass assignmentSchemaClass, ISchemaProperty assignmentBaseProperty, ISchemaProperty assignmentMembersProperty, IEnumerable`1 members) at VI.Projector.Schema.Properties.AssignmentSchemaTypeInformation.FromXml(XmlElement elem, ISchema schema) at VI.Projector.Schema.Properties.MNSchemaTypeToMembersProperty._GetLookUpTablesFromString(String source) at VI.Projector.Schema.Properties.MNSchemaTypeToMembersProperty.<>c__DisplayClass0_0.<.ctor>b__0() at VI.Projector.Serialization.ProjectorReader.ExecutePostReadActions() at VI.Projector.Serialization.ProjectorReader.Read(ProjectorReaderReadArgs args) 2025-07-29 17:32:33.3763 ERROR (VI.FormBase.ExceptionMgr ) : Sequence contains no matching element System.InvalidOperationException: Sequence contains no matching element at System.Linq.ThrowHelper.ThrowNoMatchException() at System.Linq.Enumerable.First[TSource](IEnumerable`1 source, Func`2 predicate) at VI.Projector.Schema.Properties.AssignmentSchemaTypeInformation..ctor(ISchemaType baseSchemaType, ISchemaClass assignmentSchemaClass, ISchemaProperty assignmentBaseProperty, ISchemaProperty assignmentMembersProperty, IEnumerable`1 members) at VI.Projector.Schema.Properties.AssignmentSchemaTypeInformation.FromXml(XmlElement elem, ISchema schema) at VI.Projector.Schema.Properties.MNSchemaTypeToMembersProperty._GetLookUpTablesFromString(String source) at VI.Projector.Schema.Properties.MNSchemaTypeToMembersProperty.<>c__DisplayClass0_0.<.ctor>b__0() at VI.Projector.Serialization.ProjectorReader.ExecutePostReadActions() at VI.Projector.Serialization.ProjectorReader.Read(ProjectorReaderReadArgs args) at VI.Projector.Editor.AppModel.Operations.LoadShellOperation.OnExecute(Params arguments) at VI.Projector.Editor.AppModel.Operations.EditorOperation`3.Execute(TParam arguments) at VI.Projector.Editor.AppModel.Operations.LoadShellOperation.OnExecuteInteractive(Options options) at VI.Projector.Editor.AppModel.Operations.EditorOperation`3.ExecuteInteractive(TOption options) at VI.Projector.Editor.ProjectorEditorControl.LoadShellFromDb(IEntity entity) at VI.Projector.Editor.ProjectorEditorControl.m_Dashboard_OpenShell(Object sender, DashboardEventArgs e) at System.Linq.ThrowHelper.ThrowNoMatchException() at System.Linq.Enumerable.First[TSource](IEnumerable`1 source, Func`2 predicate) at VI.Projector.Schema.Properties.AssignmentSchemaTypeInformation..ctor(ISchemaType baseSchemaType, ISchemaClass assignmentSchemaClass, ISchemaProperty assignmentBaseProperty, ISchemaProperty assignmentMembersProperty, IEnumerable`1 members) at VI.Projector.Schema.Properties.AssignmentSchemaTypeInformation.FromXml(XmlElement elem, ISchema schema) at VI.Projector.Schema.Properties.MNSchemaTypeToMembersProperty._GetLookUpTablesFromString(String source) at VI.Projector.Schema.Properties.MNSchemaTypeToMembersProperty.<>c__DisplayClass0_0.<.ctor>b__0() at VI.Projector.Serialization.ProjectorReader.ExecutePostReadActions() at VI.Projector.Serialization.ProjectorReader.Read(ProjectorReaderReadArgs args) at VI.Projector.Editor.AppModel.Operations.LoadShellOperation.OnExecute(Params arguments) at VI.Projector.Editor.AppModel.Operations.EditorOperation`3.Execute(TParam arguments) at VI.Projector.Editor.AppModel.Operations.LoadShellOperation.OnExecuteInteractive(Options options) at VI.Projector.Editor.AppModel.Operations.EditorOperation`3.ExecuteInteractive(TOption options) at VI.Projector.Editor.ProjectorEditorControl.LoadShellFromDb(IEntity entity) at VI.Projector.Editor.ProjectorEditorControl.m_Dashboard_OpenShell(Object sender, DashboardEventArgs e) 2025-07-29 17:32:33.3763 ERROR (ExceptionHandler 1a76611a-ab01-4eba-8502-01daeb708a8c ) : Sequence contains no matching element System.InvalidOperationException: Sequence contains no matching element at System.Linq.ThrowHelper.ThrowNoMatchException() at System.Linq.Enumerable.First[TSource](IEnumerable`1 source, Func`2 predicate) at VI.Projector.Schema.Properties.AssignmentSchemaTypeInformation..ctor(ISchemaType baseSchemaType, ISchemaClass assignmentSchemaClass, ISchemaProperty assignmentBaseProperty, ISchemaProperty assignmentMembersProperty, IEnumerable`1 members) at VI.Projector.Schema.Properties.AssignmentSchemaTypeInformation.FromXml(XmlElement elem, ISchema schema) at VI.Projector.Schema.Properties.MNSchemaTypeToMembersProperty._GetLookUpTablesFromString(String source) at VI.Projector.Schema.Properties.MNSchemaTypeToMembersProperty.<>c__DisplayClass0_0.<.ctor>b__0() at VI.Projector.Serialization.ProjectorReader.ExecutePostReadActions() at VI.Projector.Serialization.ProjectorReader.Read(ProjectorReaderReadArgs args) at VI.Projector.Editor.AppModel.Operations.LoadShellOperation.OnExecute(Params arguments) at VI.Projector.Editor.AppModel.Operations.EditorOperation`3.Execute(TParam arguments) at VI.Projector.Editor.AppModel.Operations.LoadShellOperation.OnExecuteInteractive(Options options) at VI.Projector.Editor.AppModel.Operations.EditorOperation`3.ExecuteInteractive(TOption options) at VI.Projector.Editor.ProjectorEditorControl.LoadShellFromDb(IEntity entity) at VI.Projector.Editor.ProjectorEditorControl.m_Dashboard_OpenShell(Object sender, DashboardEventArgs e) at System.Linq.ThrowHelper.ThrowNoMatchException() at System.Linq.Enumerable.First[TSource](IEnumerable`1 source, Func`2 predicate) at VI.Projector.Schema.Properties.AssignmentSchemaTypeInformation..ctor(ISchemaType baseSchemaType, ISchemaClass assignmentSchemaClass, ISchemaProperty assignmentBaseProperty, ISchemaProperty assignmentMembersProperty, IEnumerable`1 members) at VI.Projector.Schema.Properties.AssignmentSchemaTypeInformation.FromXml(XmlElement elem, ISchema schema) at VI.Projector.Schema.Properties.MNSchemaTypeToMembersProperty._GetLookUpTablesFromString(String source) at VI.Projector.Schema.Properties.MNSchemaTypeToMembersProperty.<>c__DisplayClass0_0.<.ctor>b__0() at VI.Projector.Serialization.ProjectorReader.ExecutePostReadActions() at VI.Projector.Serialization.ProjectorReader.Read(ProjectorReaderReadArgs args) at VI.Projector.Editor.AppModel.Operations.LoadShellOperation.OnExecute(Params arguments) at VI.Projector.Editor.AppModel.Operations.EditorOperation`3.Execute(TParam arguments) at VI.Projector.Editor.AppModel.Operations.LoadShellOperation.OnExecuteInteractive(Options options) at VI.Projector.Editor.AppModel.Operations.EditorOperation`3.ExecuteInteractive(TOption options) at VI.Projector.Editor.ProjectorEditorControl.LoadShellFromDb(IEntity entity) at VI.Projector.Editor.ProjectorEditorControl.m_Dashboard_OpenShell(Object sender, DashboardEventArgs e)
