error occurred while creating a deployment package

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I'm trying to create a deployment package for our on-prem server. It's worked fine up to now but today it started giving me an error message: "An error occurred while creating a deployment package. Error message: Exception has been thrown by the target of an invocation." After several attempts, getting the same message, I've given up. Any help would be appreciated thanks. The stack trace is below if that's any help: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.InvalidOperationException: Sequence contains no matching element    at System.Linq.Enumerable.First[TSource](IEnumerable`1 source, Func`2 predicate)    at Mendix.Modeler.DataStorage.DataSets.Security.DataSetConstraintAccess.get_Constraint() in C:\jenkins\workspace\Modeler-Build\modeler\Mendix.Modeler.DataStorage\DataSets\Security\DataSetConstraintAccess.cs:line 33    --- End of inner exception stack trace ---    at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor)    at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments)    at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)    at System.Reflection.RuntimePropertyInfo.GetValue(Object obj, Object[] index)    at Mendix.Modeler.Storage.Operations.WriteBsoner.WriteBsonObject(BsonWriter writer, IStorageObject obj) in C:\jenkins\workspace\Modeler-Build\modeler\Mendix.Modeler.Storage\Operations\WriteBsoner.cs:line 54    at Mendix.Modeler.Storage.Operations.WriteBsoner.WriteBsonValue(BsonWriter writer, ICachedProperty prop, Object value) in C:\jenkins\workspace\Modeler-Build\modeler\Mendix.Modeler.Storage\Operations\WriteBsoner.cs:line 136    at Mendix.Modeler.Storage.Operations.WriteBsoner.WriteBsonObject(BsonWriter writer, IStorageObject obj) in C:\jenkins\workspace\Modeler-Build\modeler\Mendix.Modeler.Storage\Operations\WriteBsoner.cs:line 60    at Mendix.Modeler.Storage.Operations.WriteBsoner.WriteBsonValue(BsonWriter writer, ICachedProperty prop, Object value) in C:\jenkins\workspace\Modeler-Build\modeler\Mendix.Modeler.Storage\Operations\WriteBsoner.cs:line 136    at Mendix.Modeler.Storage.Operations.WriteBsoner.WriteBsonObject(BsonWriter writer, IStorageObject obj) in C:\jenkins\workspace\Modeler-Build\modeler\Mendix.Modeler.Storage\Operations\WriteBsoner.cs:line 60    at Mendix.Modeler.Storage.Operations.WriteBsoner.WriteBsonValue(BsonWriter writer, ICachedProperty prop, Object value) in C:\jenkins\workspace\Modeler-Build\modeler\Mendix.Modeler.Storage\Operations\WriteBsoner.cs:line 136    at Mendix.Modeler.Storage.Operations.WriteBsoner.WriteBsonObject(BsonWriter writer, IStorageObject obj) in C:\jenkins\workspace\Modeler-Build\modeler\Mendix.Modeler.Storage\Operations\WriteBsoner.cs:line 60    at Mendix.Modeler.Storage.Operations.WriteBsoner.WriteBsonValue(BsonWriter writer, ICachedProperty prop, Object value) in C:\jenkins\workspace\Modeler-Build\modeler\Mendix.Modeler.Storage\Operations\WriteBsoner.cs:line 136    at Mendix.Modeler.Storage.Operations.WriteBsoner.WriteBsonObject(BsonWriter writer, IStorageObject obj) in C:\jenkins\workspace\Modeler-Build\modeler\Mendix.Modeler.Storage\Operations\WriteBsoner.cs:line 50    at Mendix.Modeler.Storage.Operations.Deployer.WriteUnitsContents(BsonWriter writer, HashSet`1 units, IProgressInfo info) in C:\jenkins\workspace\Modeler-Build\modeler\Mendix.Modeler.Storage\Operations\Deployer.cs:line 66    at Mendix.Modeler.Storage.Operations.Deployer.Deploy(IStorageUnit unit, String targetFilePath, IProgressInfo info) in C:\jenkins\workspace\Modeler-Build\modeler\Mendix.Modeler.Storage\Operations\Deployer.cs:line 27    at Mendix.Modeler.Deployment.FileIOExceptionHandlingProcess.CatchDiskException(Action action) in C:\jenkins\workspace\Modeler-Build\modeler\Mendix.Modeler.Core\Deployment\FileIOExceptionHandlingProcess.cs:line 28    at Mendix.Modeler.Deployment.FileIOExceptionHandlingProcess.<>c__DisplayClass1_0.<AddStep>b__0(IProgressInfo info) in C:\jenkins\workspace\Modeler-Build\modeler\Mendix.Modeler.Core\Deployment\FileIOExceptionHandlingProcess.cs:line 19    at Mendix.Modeler.Utility.Progress.ProcessRunner.RunStep(Step step) in C:\jenkins\workspace\Modeler-Build\modeler\Mendix.Modeler.UIFramework\Progress\ProcessRunner.cs:line 88    at Mendix.Modeler.Utility.Progress.ProcessRunner.worker_DoWork(Object sender, DoWorkEventArgs e) in C:\jenkins\workspace\Modeler-Build\modeler\Mendix.Modeler.UIFramework\Progress\ProcessRunner.cs:line 68    at System.ComponentModel.BackgroundWorker.OnDoWork(DoWorkEventArgs e)    at System.ComponentModel.BackgroundWorker.WorkerThreadStart(Object argument)
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