Web Part Error: Could not load type 'Microsoft.SharePoint.Portal.WebControls.FilterOperator' from assembly 'Microsoft.SharePoint.Portal, Version=16.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c'. Correlation ID: d18b1fa1-6559-a060-0ab6-4170f086d343.
Error Details:
[ArgumentException: The serialized data is invalid.]
at Microsoft.SharePoint.WebPartPages.SPObjectStateFormatter.Deserialize(Stream inputStream)
at Microsoft.SharePoint.WebPartPages.Utility.DeserializeByteArrayToObject(SPSerializationBinderBase binder, Byte[] bytes)
at Microsoft.SharePoint.WebPartPages.BinaryWebPartDeserializer.LoadInitialWebPart()
at Microsoft.SharePoint.WebPartPages.BinaryWebPartDeserializer.Deserialize()
at Microsoft.SharePoint.WebPartPages.SPWebPartManager.CreateWebPartsFromRowSetData(Boolean onlyInitializeClosedWebParts)
[TypeLoadException: Could not load type 'Microsoft.SharePoint.Portal.WebControls.FilterOperator' from assembly 'Microsoft.SharePoint.Portal, Version=16.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c'.]
at System.Reflection.RuntimeAssembly.GetType(RuntimeAssembly assembly, String name, Boolean throwOnError, Boolean ignoreCase, ObjectHandleOnStack type)
at System.Reflection.RuntimeAssembly.GetType(String name, Boolean throwOnError, Boolean ignoreCase)
at Microsoft.SharePoint.WebPartPages.SPSerializationBinderBase.BindToType(String assemblyName, String typeName)
at System.Runtime.Serialization.Formatters.Binary.ObjectReader.Bind(String assemblyString, String typeString)
at System.Runtime.Serialization.Formatters.Binary.ObjectReader.GetType(BinaryAssemblyInfo assemblyInfo, String name)
at System.Runtime.Serialization.Formatters.Binary.ObjectMap..ctor(String objectName, String[] memberNames, BinaryTypeEnum[] binaryTypeEnumA, Object[] typeInformationA, Int32[] memberAssemIds, ObjectReader objectReader, Int32 objectId, BinaryAssemblyInfo assemblyInfo, SizedArray assemIdToAssemblyTable)
at System.Runtime.Serialization.Formatters.Binary.__BinaryParser.ReadObjectWithMapTyped(BinaryObjectWithMapTyped record)
at System.Runtime.Serialization.Formatters.Binary.__BinaryParser.Run()
at System.Runtime.Serialization.Formatters.Binary.ObjectReader.Deserialize(HeaderHandler handler, __BinaryParser serParser, Boolean fCheck, Boolean isCrossAppDomain, IMethodCallMessage methodCallMessage)
at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize(Stream serializationStream, HeaderHandler handler, Boolean fCheck, Boolean isCrossAppDomain, IMethodCallMessage methodCallMessage)
at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize(Stream serializationStream)
at Microsoft.SharePoint.WebPartPages.SPObjectStateFormatter.DeserializeValue(SerializerBinaryReader reader)
at Microsoft.SharePoint.WebPartPages.SPObjectStateFormatter.DeserializeValue(SerializerBinaryReader reader)
at Microsoft.SharePoint.WebPartPages.SPObjectStateFormatter.Deserialize(Stream inputStream)