SerializationException

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I have created an add-in for VS.NET and when it starts I want the add-in to
read the options from file.
I have created a class (with the [Serializable] attribute set) that contains
the options and implemented GetObjectData(SerializationInfo info,
StreamingContext context) as well as a copy constructor: protected
Options(SerializationInfo info, StreamingContext context).

The serialization process definately works. However, on startup I try to
create an instance of my Options class and deserialize the file, but I get a
SerializationException as follows:

Engine.LoadOptions: System.Runtime.Serialization.SerializationException:
Cannot find the assembly CodeStore, Version=2.0.0.0, Culture=neutral,
PublicKeyToken=null.
at
System.Runtime.Serialization.Formatters.Binary.BinaryAssemblyInfo.GetAssembl
y()
at
System.Runtime.Serialization.Formatters.Binary.ObjectReader.GetType(BinaryAs
semblyInfo 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.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.ReadObjectWith
MapTyped(BinaryObjectWithMapTyped record)
at
System.Runtime.Serialization.Formatters.Binary.__BinaryParser.ReadObjectWith
MapTyped(BinaryHeaderEnum binaryHeaderEnum)
at System.Runtime.Serialization.Formatters.Binary.__BinaryParser.Run()
at
System.Runtime.Serialization.Formatters.Binary.ObjectReader.Deserialize(Head
erHandler handler, __BinaryParser serParser, Boolean fCheck,
IMethodCallMessage methodCallMessage)
at
System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize(S
tream serializationStream, HeaderHandler handler, Boolean fCheck,
IMethodCallMessage methodCallMessage)
at
System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize(S
tream serializationStream)
at Salamander.Addins.CodeStore.Engine.Engine.LoadOptions() in
c:\development\codestore\engine\engine.cs:line 78

Why can't it find the assembly? It is not calling out to a separate library,
it's a single dll for the add-in and that's where the code is being called
from. The file it is trying to read is inthe same location as the dll, too.

The LoadOptions function looks like this:

internal void LoadOptions()
{
try
{
string path = GetAddInPath() + this.optionsFileName;
Stream stream = new FileStream(path + ".options", FileMode.Open,
FileAccess.Read, FileShare.Read);
try
{
IFormatter formatter = new BinaryFormatter();
this.options = (Options)formatter.Deserialize(stream); // <-- This is
line 78 where the exception is raised.
}
catch (System.Exception exc)
{
System.Diagnostics.Trace.WriteLine(exc.ToString(),
"Engine.LoadOptions");
}
finally
{
stream.Close();
}
}
catch (System.Exception exc)
{
if (exc is FileNotFoundException)
{
// No options file, so write the current default options to file.
SaveOptions();
}
else
{
System.Diagnostics.Trace.WriteLine(exc.Message, "Engine.LoadOptions");
}
}
}

 

[Derek Lakin]

Thanks for the idea, but unfortunately I still have the same problem. Any
other ideas?

Derek.

Try to add the following line into to your add-in assembly:

[assembly:AllowPartiallyTrustedCallers]



James X. Li

I have created an add-in for VS.NET and when it starts I want the add-in to
read the options from file.
I have created a class (with the [Serializable] attribute set) that contains
the options and implemented GetObjectData(SerializationInfo info,
StreamingContext context) as well as a copy constructor: protected
Options(SerializationInfo info, StreamingContext context).

The serialization process definately works. However, on startup I try to
create an instance of my Options class and deserialize the file, but I

get

a
SerializationException as follows:

Engine.LoadOptions: System.Runtime.Serialization.SerializationException:
Cannot find the assembly CodeStore, Version=2.0.0.0, Culture=neutral,
PublicKeyToken=null.
at

System.Runtime.Serialization.Formatters.Binary.BinaryAssemblyInfo.GetAssemblSystem.Runtime.Serialization.Formatters.Binary.ObjectReader.GetType(BinaryAs

semblyInfo 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.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.ReadObjectWith

MapTyped(BinaryObjectWithMapTyped record)
at

System.Runtime.Serialization.Formatters.Binary.__BinaryParser.ReadObjectWith

MapTyped(BinaryHeaderEnum binaryHeaderEnum)
at System.Runtime.Serialization.Formatters.Binary.__BinaryParser.Run()
at

System.Runtime.Serialization.Formatters.Binary.ObjectReader.Deserialize(Head

erHandler handler, __BinaryParser serParser, Boolean fCheck,
IMethodCallMessage methodCallMessage)
at

System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize(S

tream serializationStream, HeaderHandler handler, Boolean fCheck,
IMethodCallMessage methodCallMessage)
at

System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize(S

tream serializationStream)
at Salamander.Addins.CodeStore.Engine.Engine.LoadOptions() in
c:\development\codestore\engine\engine.cs:line 78

Why can't it find the assembly? It is not calling out to a separate library,
it's a single dll for the add-in and that's where the code is being called
from. The file it is trying to read is inthe same location as the dll, too.

The LoadOptions function looks like this:

internal void LoadOptions()
{
try
{
string path = GetAddInPath() + this.optionsFileName;
Stream stream = new FileStream(path + ".options", FileMode.Open,
FileAccess.Read, FileShare.Read);
try
{
IFormatter formatter = new BinaryFormatter();
this.options = (Options)formatter.Deserialize(stream); // <-- This is
line 78 where the exception is raised.
}
catch (System.Exception exc)
{
System.Diagnostics.Trace.WriteLine(exc.ToString(),
"Engine.LoadOptions");
}
finally
{
stream.Close();
}
}
catch (System.Exception exc)
{
if (exc is FileNotFoundException)
{
// No options file, so write the current default options to file.
SaveOptions();
}
else
{
System.Diagnostics.Trace.WriteLine(exc.Message, "Engine.LoadOptions");
}
}
}

 

[Frans Bouma]

I have created an add-in for VS.NET and when it starts I want the add-in
to read the options from file.
I have created a class (with the [Serializable] attribute set) that
contains the options and implemented GetObjectData(SerializationInfo
info, StreamingContext context) as well as a copy constructor: protected
Options(SerializationInfo info, StreamingContext context).

The serialization process definately works. However, on startup I try to
create an instance of my Options class and deserialize the file, but I
get a SerializationException as follows:

Engine.LoadOptions: System.Runtime.Serialization.SerializationException:
Cannot find the assembly CodeStore, Version=2.0.0.0, Culture=neutral,
PublicKeyToken=null.
at
System.Runtime.Serialization.Formatters.Binary.BinaryAssemblyInfo.GetAss e
mbl y()
at

I had the same problem. It went away when I also implemented
ISerializable on the objects inside the object that was related to the
errormessage.

It's very weird why this error pops up, and you can't debug it,
because it goes wrong somewhere in the deserialization code of .NET.

FB

 

[Dave]

This may be too simplistic, but did you derive your class from
ISerializable? You need to both mark it as Serializable and also as derived
from ISerializable

Thanks for the idea, but unfortunately I still have the same problem. Any
other ideas?

Derek.

Try to add the following line into to your add-in assembly:

[assembly:AllowPartiallyTrustedCallers]



James X. Li

I have created an add-in for VS.NET and when it starts I want the

add-in
to

read the options from file.
I have created a class (with the [Serializable] attribute set) that contains
the options and implemented GetObjectData(SerializationInfo info,
StreamingContext context) as well as a copy constructor: protected
Options(SerializationInfo info, StreamingContext context).

The serialization process definately works. However, on startup I try to
create an instance of my Options class and deserialize the file, but I

get

a
SerializationException as follows:

Engine.LoadOptions: System.Runtime.Serialization.SerializationException:
Cannot find the assembly CodeStore, Version=2.0.0.0, Culture=neutral,
PublicKeyToken=null.
at

System.Runtime.Serialization.Formatters.Binary.BinaryAssemblyInfo.GetAssemblSystem.Runtime.Serialization.Formatters.Binary.ObjectReader.GetType(BinaryAs

semblyInfo 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.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.ReadObjectWithSystem.Runtime.Serialization.Formatters.Binary.__BinaryParser.ReadObjectWithSystem.Runtime.Serialization.Formatters.Binary.ObjectReader.Deserialize(HeadSystem.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize(SSystem.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize(S This

is

 

[Derek Lakin]

I'm trying to serialize a class containing only string, int and bool members
(

Derek

I have created an add-in for VS.NET and when it starts I want the add-in
to read the options from file.
I have created a class (with the [Serializable] attribute set) that
contains the options and implemented GetObjectData(SerializationInfo
info, StreamingContext context) as well as a copy constructor: protected
Options(SerializationInfo info, StreamingContext context).

The serialization process definately works. However, on startup I try to
create an instance of my Options class and deserialize the file, but I
get a SerializationException as follows:

Engine.LoadOptions: System.Runtime.Serialization.SerializationException:
Cannot find the assembly CodeStore, Version=2.0.0.0, Culture=neutral,
PublicKeyToken=null.
at
System.Runtime.Serialization.Formatters.Binary.BinaryAssemblyInfo.GetAss e
mbl y()
at

I had the same problem. It went away when I also implemented
ISerializable on the objects inside the object that was related to the
errormessage.

It's very weird why this error pops up, and you can't debug it,
because it goes wrong somewhere in the deserialization code of .NET.

FB


--
Solutions Design : http://www.sd.nl
My open source .NET Software : http://www.sd.nl/software
My .NET Blog : http://weblogs.asp.net/FBouma
-------------------------------------------------------------------------

 

[Derek Lakin]

Yes it does derive from ISerializable. Full class listing is:
using Microsoft.Win32;
using System;
using System.Runtime.Serialization;

namespace Salamander.Addins.CodeStore.Engine
{
/// <summary>
/// Summary description for Options.
/// </summary>
[Serializable]
internal class Options: ISerializable
{
#region Class Data
internal string ServerUrl =
"http://www.salamandersoftware.biz/codestore/";
internal string LocalPath = String.Empty;
#region Proxy Settings
internal bool UseProxy = false;
internal bool BypassProxyOnLocal = false;
internal bool ProxyAuthorisation = false;
internal string ProxyAddress = String.Empty;
internal int ProxyPort = 0;
internal string ProxyUser = String.Empty;
internal string ProxyPassword = String.Empty;
#endregion
#endregion

#region Constructors
/// <summary>
/// Default Constructor.
/// </summary>
internal Options() {}

/// <summary>
/// Construct an Options object from serialization.
/// </summary>
/// <param name="info"></param>
/// <param name="context"></param>
protected Options(SerializationInfo info, StreamingContext context)
{
int version = info.GetInt32("_OptVersion");

this.ServerUrl = info.GetString("ServerUrl");
this.LocalPath = info.GetString("LocalPath");
this.UseProxy = info.GetBoolean("UseProxy");
this.BypassProxyOnLocal = info.GetBoolean("BypassProxyOnLocal");
this.ProxyAuthorisation = info.GetBoolean("ProxyAuthorisation");
this.ProxyAddress = info.GetString("ProxyAddress");
this.ProxyPort = info.GetInt32("ProxyPort");
if (version >= 2)
{
//TODO: Add encryption support to version 2.
}
else
{
// Clear text used in version 1.
this.ProxyUser = info.GetString("ProxyUser");
this.ProxyPassword = info.GetString("ProxyPassword");
}
}
#endregion

/// <summary>
/// Populates a SerializationInfo with the data needed to serialize the
target object.
/// </summary>
/// <param name="info">The SerializationInfo to populate with
data.</param>
/// <param name="context">The destination for this serialization.</param>
public virtual void GetObjectData(SerializationInfo info, StreamingContext
context)
{
info.AddValue("_OptVersion", 1);
info.AddValue("ServerUrl", this.ServerUrl);
info.AddValue("LocalPath", this.LocalPath);
info.AddValue("UseProxy", this.UseProxy);
info.AddValue("BypassProxyOnLocal", this.BypassProxyOnLocal);
info.AddValue("ProxyAuthorisation", this.ProxyAuthorisation);
info.AddValue("ProxyAddress", this.ProxyAddress);
info.AddValue("ProxyPort", this.ProxyPort);
//TODO: Add encryption to version 2.
info.AddValue("ProxyUser", this.ProxyUser);
info.AddValue("ProxyPassword", this.ProxyPassword);
}
}
}

This may be too simplistic, but did you derive your class from
ISerializable? You need to both mark it as Serializable and also as derived
from ISerializable

Thanks for the idea, but unfortunately I still have the same problem. Any
other ideas?

Derek.

Try to add the following line into to your add-in assembly:

[assembly:AllowPartiallyTrustedCallers]



James X. Li

I have created an add-in for VS.NET and when it starts I want the add-in
to
read the options from file.
I have created a class (with the [Serializable] attribute set) that
contains
the options and implemented GetObjectData(SerializationInfo info,
StreamingContext context) as well as a copy constructor: protected
Options(SerializationInfo info, StreamingContext context).

The serialization process definately works. However, on startup I

try

to I
get

System.Runtime.Serialization.Formatters.Binary.BinaryAssemblyInfo.GetAssemblSystem.Runtime.Serialization.Formatters.Binary.ObjectReader.GetType(BinaryAs

semblyInfo 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.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.ReadObjectWithSystem.Runtime.Serialization.Formatters.Binary.__BinaryParser.ReadObjectWithSystem.Runtime.Serialization.Formatters.Binary.ObjectReader.Deserialize(HeadSystem.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize(SSystem.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize(S

This