I can only open my projects in one PC, when i try to open in any other machine it throws me an exception I'm using the latest (1.0.2004.2) version but also happened in olders.

Here's the message

Message
Posible falta de coincidencia de las versiones. El tipo System.Collections.Comparer tiene 1 miembros, el número de miembros deserializado es 0.

Stack Trace
-----[Core exception]--------------------
   at System.Runtime.Serialization.Formatters.Binary.ReadObjectInfo.GetMemberTypes(String[] inMemberNames)
   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.ObjectMap.Create(String name, 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.ReadObjectWithMapTyped(BinaryHeaderEnum binaryHeaderEnum)
   at System.Runtime.Serialization.Formatters.Binary.__BinaryParser.Run()
   at System.Runtime.Serialization.Formatters.Binary.ObjectReader.Deserialize(HeaderHandler handler, __BinaryParser serParser, Boolean fCheck, IMethodCallMessage methodCallMessage)
   at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize(Stream serializationStream, HeaderHandler handler, Boolean fCheck, IMethodCallMessage methodCallMessage)
   at SD.LLBLGen.Pro.ApplicationCore.Project.Load(String projectPathFileName)
   at SD.LLBLGen.Pro.Gui.Forms.MainWindow.OpenExistingProject(String filenameToOpen)

Source:
mscorlib

I'm guessing your project was saved on a computer with .NET 1.1 Service Pack 1. In that case an error will be thrown when it's opened on computers that don't have the service pack. Try installing the service pack on those other computers and see if that fixes it.

Jeff

Jeff is right This is caused by the absense of SP1 for .NET 1.1

Otis wrote:

Jeff is right This is caused by the absense of SP1 for .NET 1.1

Ok, should be that. The last question is. Must I update the framework on clients machines too?

thanks for your support

studiosoft wrote:

Otis wrote:

Jeff is right This is caused by the absense of SP1 for .NET 1.1

Ok, should be that. The last question is. Must I update the framework on clients machines too?

thanks for your support

No, only on the systems on which you use the designer. The code should work without the .NET 1.1 SP1, though it's recommended you install that service pack.