10/28/2025 11:44:48 AM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: source
   at System.Linq.Enumerable.Contains[TSource](IEnumerable`1 source, TSource value, IEqualityComparer`1 comparer)
   at Formula_Editor.BusinessLayer.FormulaExpression.getLabelName(String qname)
   at Formula_Editor.BusinessLayer.FormulaExpression.createNode(filter filter, TreeNode trn)
FunctionName: createNode()
10/28/2025 11:44:48 AM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: node
   at System.Windows.Forms.TreeNodeCollection.AddInternal(TreeNode node, Int32 delta)
   at Formula_Editor.BusinessLayer.FormulaExpression.addVariables(Locator loc)
FunctionName: addVariables()
10/28/2025 11:44:48 AM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: source
   at System.Linq.Enumerable.Contains[TSource](IEnumerable`1 source, TSource value, IEqualityComparer`1 comparer)
   at Formula_Editor.BusinessLayer.FormulaExpression.getLabelName(String qname)
   at Formula_Editor.BusinessLayer.FormulaExpression.createNode(filter filter, TreeNode trn)
FunctionName: createNode()
10/28/2025 11:44:48 AM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: node
   at System.Windows.Forms.TreeNodeCollection.AddInternal(TreeNode node, Int32 delta)
   at Formula_Editor.BusinessLayer.FormulaExpression.addVariables(Locator loc)
FunctionName: addVariables()
10/28/2025 11:44:48 AM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: source
   at System.Linq.Enumerable.Contains[TSource](IEnumerable`1 source, TSource value, IEqualityComparer`1 comparer)
   at Formula_Editor.BusinessLayer.FormulaExpression.getLabelName(String qname)
   at Formula_Editor.BusinessLayer.FormulaExpression.createNode(filter filter, TreeNode trn)
FunctionName: createNode()
10/28/2025 11:44:48 AM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: node
   at System.Windows.Forms.TreeNodeCollection.AddInternal(TreeNode node, Int32 delta)
   at Formula_Editor.BusinessLayer.FormulaExpression.addVariables(Locator loc)
FunctionName: addVariables()
10/28/2025 11:44:48 AM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: source
   at System.Linq.Enumerable.Contains[TSource](IEnumerable`1 source, TSource value, IEqualityComparer`1 comparer)
   at Formula_Editor.BusinessLayer.FormulaExpression.getLabelName(String qname)
   at Formula_Editor.BusinessLayer.FormulaExpression.createNode(filter filter, TreeNode trn)
FunctionName: createNode()
10/28/2025 11:44:48 AM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: node
   at System.Windows.Forms.TreeNodeCollection.AddInternal(TreeNode node, Int32 delta)
   at Formula_Editor.BusinessLayer.FormulaExpression.addVariables(Locator loc)
FunctionName: addVariables()
10/28/2025 11:44:48 AM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: source
   at System.Linq.Enumerable.Contains[TSource](IEnumerable`1 source, TSource value, IEqualityComparer`1 comparer)
   at Formula_Editor.BusinessLayer.FormulaExpression.getLabelName(String qname)
   at Formula_Editor.BusinessLayer.FormulaExpression.createNode(filter filter, TreeNode trn)
FunctionName: createNode()
10/28/2025 11:44:48 AM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: node
   at System.Windows.Forms.TreeNodeCollection.AddInternal(TreeNode node, Int32 delta)
   at Formula_Editor.BusinessLayer.FormulaExpression.addVariables(Locator loc)
FunctionName: addVariables()
10/30/2025 11:14:32 AM
ErrorMessage:    at FormulaClassStructure.ReadFormulaLinkbase.readLinkLoc(String fullPath)
FunctionName: readLinkLoc()
10/30/2025 11:14:34 AM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: source
   at System.Linq.Enumerable.Contains[TSource](IEnumerable`1 source, TSource value, IEqualityComparer`1 comparer)
   at Formula_Editor.BusinessLayer.FormulaExpression.getLabelName(String qname)
   at Formula_Editor.BusinessLayer.FormulaExpression.createNode(filter filter, TreeNode trn)
FunctionName: createNode()
10/30/2025 11:14:34 AM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: node
   at System.Windows.Forms.TreeNodeCollection.AddInternal(TreeNode node, Int32 delta)
   at Formula_Editor.BusinessLayer.FormulaExpression.addVariables(Locator loc)
FunctionName: addVariables()
10/30/2025 11:14:34 AM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: source
   at System.Linq.Enumerable.Contains[TSource](IEnumerable`1 source, TSource value, IEqualityComparer`1 comparer)
   at Formula_Editor.BusinessLayer.FormulaExpression.getLabelName(String qname)
   at Formula_Editor.BusinessLayer.FormulaExpression.createNode(filter filter, TreeNode trn)
FunctionName: createNode()
10/30/2025 11:14:34 AM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: node
   at System.Windows.Forms.TreeNodeCollection.AddInternal(TreeNode node, Int32 delta)
   at Formula_Editor.BusinessLayer.FormulaExpression.addVariables(Locator loc)
FunctionName: addVariables()
10/30/2025 11:14:34 AM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: source
   at System.Linq.Enumerable.Contains[TSource](IEnumerable`1 source, TSource value, IEqualityComparer`1 comparer)
   at Formula_Editor.BusinessLayer.FormulaExpression.getLabelName(String qname)
   at Formula_Editor.BusinessLayer.FormulaExpression.createNode(filter filter, TreeNode trn)
FunctionName: createNode()
10/30/2025 11:14:34 AM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: node
   at System.Windows.Forms.TreeNodeCollection.AddInternal(TreeNode node, Int32 delta)
   at Formula_Editor.BusinessLayer.FormulaExpression.addVariables(Locator loc)
FunctionName: addVariables()
10/30/2025 11:14:34 AM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: source
   at System.Linq.Enumerable.Contains[TSource](IEnumerable`1 source, TSource value, IEqualityComparer`1 comparer)
   at Formula_Editor.BusinessLayer.FormulaExpression.getLabelName(String qname)
   at Formula_Editor.BusinessLayer.FormulaExpression.createNode(filter filter, TreeNode trn)
FunctionName: createNode()
10/30/2025 11:14:34 AM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: node
   at System.Windows.Forms.TreeNodeCollection.AddInternal(TreeNode node, Int32 delta)
   at Formula_Editor.BusinessLayer.FormulaExpression.addVariables(Locator loc)
FunctionName: addVariables()
10/30/2025 11:14:34 AM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: source
   at System.Linq.Enumerable.Contains[TSource](IEnumerable`1 source, TSource value, IEqualityComparer`1 comparer)
   at Formula_Editor.BusinessLayer.FormulaExpression.getLabelName(String qname)
   at Formula_Editor.BusinessLayer.FormulaExpression.createNode(filter filter, TreeNode trn)
FunctionName: createNode()
10/30/2025 11:14:34 AM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: node
   at System.Windows.Forms.TreeNodeCollection.AddInternal(TreeNode node, Int32 delta)
   at Formula_Editor.BusinessLayer.FormulaExpression.addVariables(Locator loc)
FunctionName: addVariables()
11/3/2025 12:31:52 AM
ErrorMessage:    at FormulaClassStructure.ReadFormulaLinkbase.readLinkLoc(String fullPath)
FunctionName: readLinkLoc()
11/3/2025 12:31:54 AM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: source
   at System.Linq.Enumerable.Contains[TSource](IEnumerable`1 source, TSource value, IEqualityComparer`1 comparer)
   at Formula_Editor.BusinessLayer.FormulaExpression.getLabelName(String qname)
   at Formula_Editor.BusinessLayer.FormulaExpression.createNode(filter filter, TreeNode trn)
FunctionName: createNode()
11/3/2025 12:31:54 AM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: node
   at System.Windows.Forms.TreeNodeCollection.AddInternal(TreeNode node, Int32 delta)
   at Formula_Editor.BusinessLayer.FormulaExpression.addVariables(Locator loc)
FunctionName: addVariables()
11/3/2025 12:31:54 AM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: source
   at System.Linq.Enumerable.Contains[TSource](IEnumerable`1 source, TSource value, IEqualityComparer`1 comparer)
   at Formula_Editor.BusinessLayer.FormulaExpression.getLabelName(String qname)
   at Formula_Editor.BusinessLayer.FormulaExpression.createNode(filter filter, TreeNode trn)
FunctionName: createNode()
11/3/2025 12:31:54 AM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: node
   at System.Windows.Forms.TreeNodeCollection.AddInternal(TreeNode node, Int32 delta)
   at Formula_Editor.BusinessLayer.FormulaExpression.addVariables(Locator loc)
FunctionName: addVariables()
11/3/2025 12:31:54 AM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: source
   at System.Linq.Enumerable.Contains[TSource](IEnumerable`1 source, TSource value, IEqualityComparer`1 comparer)
   at Formula_Editor.BusinessLayer.FormulaExpression.getLabelName(String qname)
   at Formula_Editor.BusinessLayer.FormulaExpression.createNode(filter filter, TreeNode trn)
FunctionName: createNode()
11/3/2025 12:31:54 AM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: node
   at System.Windows.Forms.TreeNodeCollection.AddInternal(TreeNode node, Int32 delta)
   at Formula_Editor.BusinessLayer.FormulaExpression.addVariables(Locator loc)
FunctionName: addVariables()
11/3/2025 12:31:54 AM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: source
   at System.Linq.Enumerable.Contains[TSource](IEnumerable`1 source, TSource value, IEqualityComparer`1 comparer)
   at Formula_Editor.BusinessLayer.FormulaExpression.getLabelName(String qname)
   at Formula_Editor.BusinessLayer.FormulaExpression.createNode(filter filter, TreeNode trn)
FunctionName: createNode()
11/3/2025 12:31:54 AM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: node
   at System.Windows.Forms.TreeNodeCollection.AddInternal(TreeNode node, Int32 delta)
   at Formula_Editor.BusinessLayer.FormulaExpression.addVariables(Locator loc)
FunctionName: addVariables()
11/3/2025 12:31:54 AM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: source
   at System.Linq.Enumerable.Contains[TSource](IEnumerable`1 source, TSource value, IEqualityComparer`1 comparer)
   at Formula_Editor.BusinessLayer.FormulaExpression.getLabelName(String qname)
   at Formula_Editor.BusinessLayer.FormulaExpression.createNode(filter filter, TreeNode trn)
FunctionName: createNode()
11/3/2025 12:31:54 AM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: node
   at System.Windows.Forms.TreeNodeCollection.AddInternal(TreeNode node, Int32 delta)
   at Formula_Editor.BusinessLayer.FormulaExpression.addVariables(Locator loc)
FunctionName: addVariables()
11/3/2025 12:31:54 AM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: source
   at System.Linq.Enumerable.Contains[TSource](IEnumerable`1 source, TSource value, IEqualityComparer`1 comparer)
   at Formula_Editor.BusinessLayer.FormulaExpression.getLabelName(String qname)
   at Formula_Editor.BusinessLayer.FormulaExpression.createNode(filter filter, TreeNode trn)
FunctionName: createNode()
11/3/2025 12:31:54 AM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: node
   at System.Windows.Forms.TreeNodeCollection.AddInternal(TreeNode node, Int32 delta)
   at Formula_Editor.BusinessLayer.FormulaExpression.addVariables(Locator loc)
FunctionName: addVariables()
11/7/2025 5:59:50 PM
ErrorMessage:    at FormulaClassStructure.ReadFormulaLinkbase.readLinkLoc(String fullPath)
FunctionName: readLinkLoc()
11/7/2025 5:59:54 PM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: source
   at System.Linq.Enumerable.Contains[TSource](IEnumerable`1 source, TSource value, IEqualityComparer`1 comparer)
   at Formula_Editor.BusinessLayer.FormulaExpression.getLabelName(String qname)
   at Formula_Editor.BusinessLayer.FormulaExpression.createNode(filter filter, TreeNode trn)
FunctionName: createNode()
11/7/2025 5:59:54 PM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: node
   at System.Windows.Forms.TreeNodeCollection.AddInternal(TreeNode node, Int32 delta)
   at Formula_Editor.BusinessLayer.FormulaExpression.addVariables(Locator loc)
FunctionName: addVariables()
11/7/2025 5:59:54 PM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: source
   at System.Linq.Enumerable.Contains[TSource](IEnumerable`1 source, TSource value, IEqualityComparer`1 comparer)
   at Formula_Editor.BusinessLayer.FormulaExpression.getLabelName(String qname)
   at Formula_Editor.BusinessLayer.FormulaExpression.createNode(filter filter, TreeNode trn)
FunctionName: createNode()
11/7/2025 5:59:54 PM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: node
   at System.Windows.Forms.TreeNodeCollection.AddInternal(TreeNode node, Int32 delta)
   at Formula_Editor.BusinessLayer.FormulaExpression.addVariables(Locator loc)
FunctionName: addVariables()
11/7/2025 5:59:55 PM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: source
   at System.Linq.Enumerable.Contains[TSource](IEnumerable`1 source, TSource value, IEqualityComparer`1 comparer)
   at Formula_Editor.BusinessLayer.FormulaExpression.getLabelName(String qname)
   at Formula_Editor.BusinessLayer.FormulaExpression.createNode(filter filter, TreeNode trn)
FunctionName: createNode()
11/7/2025 5:59:55 PM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: node
   at System.Windows.Forms.TreeNodeCollection.AddInternal(TreeNode node, Int32 delta)
   at Formula_Editor.BusinessLayer.FormulaExpression.addVariables(Locator loc)
FunctionName: addVariables()
11/7/2025 5:59:55 PM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: source
   at System.Linq.Enumerable.Contains[TSource](IEnumerable`1 source, TSource value, IEqualityComparer`1 comparer)
   at Formula_Editor.BusinessLayer.FormulaExpression.getLabelName(String qname)
   at Formula_Editor.BusinessLayer.FormulaExpression.createNode(filter filter, TreeNode trn)
FunctionName: createNode()
11/7/2025 5:59:55 PM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: node
   at System.Windows.Forms.TreeNodeCollection.AddInternal(TreeNode node, Int32 delta)
   at Formula_Editor.BusinessLayer.FormulaExpression.addVariables(Locator loc)
FunctionName: addVariables()
11/7/2025 5:59:55 PM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: source
   at System.Linq.Enumerable.Contains[TSource](IEnumerable`1 source, TSource value, IEqualityComparer`1 comparer)
   at Formula_Editor.BusinessLayer.FormulaExpression.getLabelName(String qname)
   at Formula_Editor.BusinessLayer.FormulaExpression.createNode(filter filter, TreeNode trn)
FunctionName: createNode()
11/7/2025 5:59:55 PM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: node
   at System.Windows.Forms.TreeNodeCollection.AddInternal(TreeNode node, Int32 delta)
   at Formula_Editor.BusinessLayer.FormulaExpression.addVariables(Locator loc)
FunctionName: addVariables()
11/11/2025 12:39:52 PM
ErrorMessage:    at FormulaClassStructure.ReadFormulaLinkbase.readLinkLoc(String fullPath)
FunctionName: readLinkLoc()
11/19/2025 1:24:45 PM
ErrorMessage:    at FormulaClassStructure.ReadFormulaLinkbase.readLinkLoc(String fullPath)
FunctionName: readLinkLoc()
11/19/2025 1:24:46 PM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: source
   at System.Linq.Enumerable.Contains[TSource](IEnumerable`1 source, TSource value, IEqualityComparer`1 comparer)
   at Formula_Editor.BusinessLayer.FormulaExpression.getLabelName(String qname)
   at Formula_Editor.BusinessLayer.FormulaExpression.createNode(filter filter, TreeNode trn)
FunctionName: createNode()
11/19/2025 1:24:46 PM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: node
   at System.Windows.Forms.TreeNodeCollection.AddInternal(TreeNode node, Int32 delta)
   at Formula_Editor.BusinessLayer.FormulaExpression.addVariables(Locator loc)
FunctionName: addVariables()
11/19/2025 1:24:46 PM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: source
   at System.Linq.Enumerable.Contains[TSource](IEnumerable`1 source, TSource value, IEqualityComparer`1 comparer)
   at Formula_Editor.BusinessLayer.FormulaExpression.getLabelName(String qname)
   at Formula_Editor.BusinessLayer.FormulaExpression.createNode(filter filter, TreeNode trn)
FunctionName: createNode()
11/19/2025 1:24:46 PM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: node
   at System.Windows.Forms.TreeNodeCollection.AddInternal(TreeNode node, Int32 delta)
   at Formula_Editor.BusinessLayer.FormulaExpression.addVariables(Locator loc)
FunctionName: addVariables()
11/19/2025 1:24:46 PM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: source
   at System.Linq.Enumerable.Contains[TSource](IEnumerable`1 source, TSource value, IEqualityComparer`1 comparer)
   at Formula_Editor.BusinessLayer.FormulaExpression.getLabelName(String qname)
   at Formula_Editor.BusinessLayer.FormulaExpression.createNode(filter filter, TreeNode trn)
FunctionName: createNode()
11/19/2025 1:24:46 PM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: node
   at System.Windows.Forms.TreeNodeCollection.AddInternal(TreeNode node, Int32 delta)
   at Formula_Editor.BusinessLayer.FormulaExpression.addVariables(Locator loc)
FunctionName: addVariables()
11/19/2025 1:24:46 PM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: source
   at System.Linq.Enumerable.Contains[TSource](IEnumerable`1 source, TSource value, IEqualityComparer`1 comparer)
   at Formula_Editor.BusinessLayer.FormulaExpression.getLabelName(String qname)
   at Formula_Editor.BusinessLayer.FormulaExpression.createNode(filter filter, TreeNode trn)
FunctionName: createNode()
11/19/2025 1:24:46 PM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: node
   at System.Windows.Forms.TreeNodeCollection.AddInternal(TreeNode node, Int32 delta)
   at Formula_Editor.BusinessLayer.FormulaExpression.addVariables(Locator loc)
FunctionName: addVariables()
11/19/2025 1:24:46 PM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: source
   at System.Linq.Enumerable.Contains[TSource](IEnumerable`1 source, TSource value, IEqualityComparer`1 comparer)
   at Formula_Editor.BusinessLayer.FormulaExpression.getLabelName(String qname)
   at Formula_Editor.BusinessLayer.FormulaExpression.createNode(filter filter, TreeNode trn)
FunctionName: createNode()
11/19/2025 1:24:46 PM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: node
   at System.Windows.Forms.TreeNodeCollection.AddInternal(TreeNode node, Int32 delta)
   at Formula_Editor.BusinessLayer.FormulaExpression.addVariables(Locator loc)
FunctionName: addVariables()
1/8/2026 10:09:51 AM
ErrorMessage:    at FormulaClassStructure.ReadFormulaLinkbase.readLinkLoc(String fullPath)
FunctionName: readLinkLoc()
1/8/2026 10:09:53 AM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: source
   at System.Linq.Enumerable.Contains[TSource](IEnumerable`1 source, TSource value, IEqualityComparer`1 comparer)
   at Formula_Editor.BusinessLayer.FormulaExpression.getLabelName(String qname)
   at Formula_Editor.BusinessLayer.FormulaExpression.createNode(filter filter, TreeNode trn)
FunctionName: createNode()
1/8/2026 10:09:53 AM
ErrorMessage: System.NullReferenceException: Object reference not set to an instance of an object.
   at Formula_Editor.BusinessLayer.FormulaExpression.addVariables(Locator loc)
FunctionName: addVariables()
1/8/2026 10:09:53 AM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: source
   at System.Linq.Enumerable.Contains[TSource](IEnumerable`1 source, TSource value, IEqualityComparer`1 comparer)
   at Formula_Editor.BusinessLayer.FormulaExpression.getLabelName(String qname)
   at Formula_Editor.BusinessLayer.FormulaExpression.createNode(filter filter, TreeNode trn)
FunctionName: createNode()
1/8/2026 10:09:53 AM
ErrorMessage: System.NullReferenceException: Object reference not set to an instance of an object.
   at Formula_Editor.BusinessLayer.FormulaExpression.addVariables(Locator loc)
FunctionName: addVariables()
1/8/2026 10:09:54 AM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: source
   at System.Linq.Enumerable.Contains[TSource](IEnumerable`1 source, TSource value, IEqualityComparer`1 comparer)
   at Formula_Editor.BusinessLayer.FormulaExpression.getLabelName(String qname)
   at Formula_Editor.BusinessLayer.FormulaExpression.createNode(filter filter, TreeNode trn)
FunctionName: createNode()
1/8/2026 10:09:54 AM
ErrorMessage: System.NullReferenceException: Object reference not set to an instance of an object.
   at Formula_Editor.BusinessLayer.FormulaExpression.addVariables(Locator loc)
FunctionName: addVariables()
1/8/2026 10:09:54 AM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: source
   at System.Linq.Enumerable.Contains[TSource](IEnumerable`1 source, TSource value, IEqualityComparer`1 comparer)
   at Formula_Editor.BusinessLayer.FormulaExpression.getLabelName(String qname)
   at Formula_Editor.BusinessLayer.FormulaExpression.createNode(filter filter, TreeNode trn)
FunctionName: createNode()
1/8/2026 10:09:54 AM
ErrorMessage: System.NullReferenceException: Object reference not set to an instance of an object.
   at Formula_Editor.BusinessLayer.FormulaExpression.addVariables(Locator loc)
FunctionName: addVariables()
1/8/2026 10:09:54 AM
ErrorMessage: System.ArgumentNullException: Value cannot be null.
Parameter name: source
   at System.Linq.Enumerable.Contains[TSource](IEnumerable`1 source, TSource value, IEqualityComparer`1 comparer)
   at Formula_Editor.BusinessLayer.FormulaExpression.getLabelName(String qname)
   at Formula_Editor.BusinessLayer.FormulaExpression.createNode(filter filter, TreeNode trn)
FunctionName: createNode()
1/8/2026 10:09:54 AM
ErrorMessage: System.NullReferenceException: Object reference not set to an instance of an object.
   at Formula_Editor.BusinessLayer.FormulaExpression.addVariables(Locator loc)
FunctionName: addVariables()
