I'm using LLBLGen 2.6, my version of the ORMSupportClasses is 2.6.08.0804.

When calling ReadXml to deserialize from an XML file created by the same application, I get the following exception

System.NullReferenceException occurred
  Message="Object reference not set to an instance of an object."
  Source="SD.LLBLGen.Pro.ORMSupportClasses.NET20"
  StackTrace:
       at SD.LLBLGen.Pro.ORMSupportClasses.XmlHelper.XmlValueToObject(String typeName, String xmlValue)
       at SD.LLBLGen.Pro.ORMSupportClasses.EntityBase2.Xml2Entity(XmlNode node, Dictionary`2 processedObjectIDs, List`1 nodeEntityReferences)
       at SD.LLBLGen.Pro.ORMSupportClasses.EntityBase2.ReadXml(XmlNode node, XmlFormatAspect format)
       at SD.LLBLGen.Pro.ORMSupportClasses.EntityBase2.ReadXml(String xmlData)
       at MyApp.GetFiles(String path) in C:\myapp\FileManager.vb:line 203
  InnerException: 

This happens since we upgraded from 2.0 to 2.6. Is there any other things that we need to check that might have been forgotten in the upgrade? What can I do to solve this issue?

(I've read http://www.llblgen.com/tinyforum/Messages.aspx?ThreadID=7961&StartAtMessage=0 that's why I tend to believe some part of the upgrade process might have been missed)

Are you sure that the 2.6 code has been generated into a clean folder structure -ie that there are no remnants of the 2. code remaining...?

Matt

Also try the latest runtime build for v2.6, yours is very old

MTrinder wrote:

Are you sure that the 2.6 code has been generated into a clean folder structure -ie that there are no remnants of the 2. code remaining...?

Matt

Well no it wasn't, we have tons of user regions with specific code in the generated code, so I had to regenerate over the existing classes. Do you have anything specific in mind that I need to clean up?

Silvermist wrote:

MTrinder wrote:

Are you sure that the 2.6 code has been generated into a clean folder structure -ie that there are no remnants of the 2. code remaining...?

Matt

Well no it wasn't, we have tons of user regions with specific code in the generated code, so I had to regenerate over the existing classes. Do you have anything specific in mind that I need to clean up?

It's just to check that everything in migration is ok. You should regenerate in an empty folder just to discard this problem.

And of course, please use the latest v2.6 runtime library version.

Otis wrote:

Also try the latest runtime build for v2.6, yours is very old

Thanks a bunch Frans, that did the trick. This problem is now solved.