Peverify error - Unable to resovle token

hi,

I am writing a very simple example from a book and I am getting an error when I run Peverify.  It says it is unable to verify token.  There are two files in the example. 

The first one - CILCars.il doesn't throw up any errors when I run ilasm // dll CILCars.il

I verify it using peverify CILCars.dll and all is ok

here is the code :

// Reference mscorlib.dll and
// System.Windows.Forms.dll.
.assembly extern mscorlib
{
	.publickeytoken = (B7 7A 5C 56 19 34 E0 89)
	.ver 4:0:0:0
}

.assembly extern System.Windows.Forms
{
	.publickeytoken = (B7 7A 5C 56 19 34 E0 89)
	.ver 4:0:0:0
}

// Define the single-file assembly.
.assembly CILCars
{
	.hash algorithm 0X00008004
	.ver 1:0:0:0
}

.module CILCars.dll

// Implementation of CILCars.CILCar type.
.namespace CILCars
{
	.class public auto ansi beforefieldinit CILCar
	extends [mscorlib]System.Object
	{
	// The field data of the CILCar.
	.field public string petName
	.field public int32 currSpeed
	
	// The custom constructor simply allows the caller
	// to assign the field data.
	.method public hidebysig specialname rtspecialname
	instance void .ctor(int32 c, string p) cil managed
	{
	.maxstack 8
	
	// Load first arg onto the stack and call base class ctor.
	ldarg.0  // "this" object, not the int32!
	call instance void [mscorlib]System.Object::.ctor()
	// Now load first and second args onto the stack.
	ldarg.0 // "this" object
	ldarg.1 // int32 arg
	// Store topmost stack (int 32) member in currSpeed field.
	stfld int32 CILCars.CILCar::currSpeed
	// Load string arg and store in petName field.
	ldarg.0  // "this" object
	ldarg.2 // string arg
	stfld string CILCars.CILCar::petName
	ret
	}
   }
}	
.class public auto ansi beforefieldinit CILCarInfo
	extends [mscorlib]System.Object
	{
	.method public hidebysig static void
	Display(class CILCars.CILCar c) cil managed
		{
		.maxstack 8
		// We need a local string variable.
		.locals init ([0] string caption)
		// Load string and the incoming CILCar onto the stack.
		ldstr "{0}'s speed is:"
		ldarg.0
		// Now place the value of the CILCar's petName on the 
		// stack and call the static String.Format() method.
		ldfld string CILCars.CILCar::petName
		call string [mscorlib]System.String::Format(string, object)
		stloc.0
		// Now load the value of the currSpeed field and get its string
		// representation (note call to ToString().
		ldarg.0
		ldflda int32 CILCars.CILCar::currSpeed
		call instance string [mscorlib]System.Int32::ToString()
		ldloc.0
		// Now call the MessageBox.Show() method with loaded values.
		call valuetype [System.Windows.Forms]
		System.Windows.Forms.DialogResult
		[System.Windows.Forms]
		System.Windows.Forms.MessageBox::Show(string, string)
		pop
		ret
		}
	}

The second file CarClient.il throws up an error when I run peverfity.  Here is the code :

// External assembly refs.
.assembly extern mscorlib
{
	.publickeytoken = (B7 7A 5C 56 19 34 E0 89)
	.ver 4:0:0:0
}
.assembly extern CILCars
{
	.ver 1:0:0:0
}

// Our executable assembly.
.assembly CarClient
{
	.hash algorithm 0x00008004
	.ver 1:0:0:0
}
.module CarClient.exe

// Implementation of Program type.
.namespace CarClient
{
	.class private auto ansi beforefieldinit Program
	extends [mscorlib]System.Object
	{
		.method private hidebysig static void
		Main(string[] args) cil managed
		{
			// Marks the entry point of the *.exe.
			.entrypoint
			.maxstack 8
			
			// Declare a local CILCar variable and push
			// values onto the stack for ctor call.
			.locals init ([0] class
			[CILCars]CILCars.CILCar myCILCar)
			ldc.i4 55
			ldstr "Junior"
			// Make new CILCar; store and load reference.
			newobj instance void
				[CILCars]CILCars.CILCar::.ctor(int32, string)
				stloc.0
				ldloc.0
			// Call Display() and pass in topmost value on stack.
			call void [CILCars]
				CILCars.CILCarInfo::Display(
					class [CILCars]CILCars.CILCar)
					ret
		}
	}
}