.net app using crystal reports not working on development server - asp.net

Question

i have a .net app that was in .net 3.0 and using crystal reports 10.5
we migrated to .net 4.5 and a new development/testing web server using .net 4.5
now the application will not load.
the errors that i receive are:
Server Error in '/' Application.
Configuration Error
Description: An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately.
Parser Error Message: Could not load file or assembly 'CrystalDecisions.Web, Version=10.5.3700.0, Culture=neutral, PublicKeyToken=692fbea5521e1304' or one of its dependencies. The system cannot find the file specified.
Source Error:
Line 16: <compilation debug="true" targetFramework="4.5">
Line 17: <assemblies>
Line 18: <add assembly="CrystalDecisions.Web, Version=10.5.3700.0, Culture=neutral, PublicKeyToken=692FBEA5521E1304" />
Line 19: <add assembly="CrystalDecisions.Shared, Version=10.5.3700.0, Culture=neutral, PublicKeyToken=692FBEA5521E1304" />
Line 20: <add assembly="CrystalDecisions.ReportSource, Version=10.5.3700.0, Culture=neutral, PublicKeyToken=692FBEA5521E1304" />
Source File: E:\IIS_Sites\NOSSA\WebSAR\3.8.1\web.config Line: 18
Assembly Load Trace: The following information can be helpful to determine why the assembly 'CrystalDecisions.Web, Version=10.5.3700.0, Culture=neutral, PublicKeyToken=692fbea5521e1304' could not be loaded.
Assembly manager loaded from: C:\Windows\Microsoft.NET\Framework64\v4.0.30319\clr.dll
Running under executable c:\windows\system32\inetsrv\w3wp.exe
--- A detailed error log follows.
=== Pre-bind state information ===
LOG: DisplayName = CrystalDecisions.Web, Version=10.5.3700.0, Culture=neutral, PublicKeyToken=692fbea5521e1304
(Fully-specified)
LOG: Appbase = file:///C:/inetpub/wwwroot/
LOG: Initial PrivatePath = C:\inetpub\wwwroot\bin
Calling assembly : (Unknown).
LOG: This bind starts in default load context.
LOG: Using application configuration file: C:\inetpub\wwwroot\web.config
LOG: Using host configuration file: C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet.config
LOG: Using machine configuration file from C:\Windows\Microsoft.NET\Framework64\v4.0.30319\config\machine.config.
LOG: Post-policy reference: CrystalDecisions.Web, Version=10.5.3700.0, Culture=neutral, PublicKeyToken=692fbea5521e1304
LOG: The same bind was seen before, and was failed with hr = 0x80070002.
i have installed the crystal runtime.
i'm not sure what else to try.
thanks

Answer 1

Are the following files in the bin directory of your website/application?
crystaldecisions.crystalreports.engine.dll, crystaldecisions.reportsource.dll, crystaldecisions.shared.dll, crystaldecisions.web.dll.
Also, I believe that version of CR is compiled under .NET 2.0 so you may need to enable the legacyV2 runtime. You can do so via the app.config file by adding useLegacyV2RuntimeActivationPolicy="true" to the startup element.
Or, you can do it in code by using the RuntimePolicyHelper class.
eg.
Imports System.Runtime.InteropServices
Imports System.Runtime.CompilerServices
'instantiate your class
Public Sub New()
Try
'runtime support for mixed mode assemblies
'this is used to load .NET 2.0 assemblies that crystal reports is built against.
If RuntimePolicyHelper.LegacyV2RuntimeEnabledSuccessfully = True Then
Else
If MsgBox("Legacy CLR could not be loaded. Continue?", _
vbYesNo + vbExclamation, _
"Failed to load legacy runtime.") = vbNo Then
Application.Exit()
End If
End If
Catch ex As Exception
ex = New Exception(ex.Message & vbCrLf & ex.StackTrace)
Throw ex
End Try
End Sub
Public NotInheritable Class RuntimePolicyHelper
Private Sub New()
End Sub
Public Shared Property LegacyV2RuntimeEnabledSuccessfully() As Boolean
Get
Return m_LegacyV2RuntimeEnabledSuccessfully
End Get
Private Set(value As Boolean)
m_LegacyV2RuntimeEnabledSuccessfully = value
End Set
End Property
Private Shared m_LegacyV2RuntimeEnabledSuccessfully As Boolean
Shared Sub New()
Try
Dim clrRuntimeInfo As ICLRRuntimeInfo = _
DirectCast(RuntimeEnvironment.GetRuntimeInterfaceAsObject(Guid.Empty, _
GetType(ICLRRuntimeInfo).GUID), ICLRRuntimeInfo)
Try
clrRuntimeInfo.BindAsLegacyV2Runtime()
LegacyV2RuntimeEnabledSuccessfully = True
Catch generatedExceptionName As COMException
LegacyV2RuntimeEnabledSuccessfully = False
End Try
Catch ex As Exception
ex = New Exception(ex.Message & vbCrLf & ex.StackTrace)
Throw ex
End Try
End Sub
<ComImport()> _
<InterfaceType(ComInterfaceType.InterfaceIsIUnknown)> _
<Guid("xxxxxxx-xxxxxxx-xxxxxxx-xxxxxxx")> _
Private Interface ICLRRuntimeInfo
Sub xGetVersionString()
Sub xGetRuntimeDirectory()
Sub xIsLoaded()
Sub xIsLoadable()
Sub xLoadErrorString()
Sub xLoadLibrary()
Sub xGetProcAddress()
Sub xGetInterface()
Sub xSetDefaultStartupFlags()
Sub xGetDefaultStartupFlags()
<MethodImpl(MethodImplOptions.InternalCall, _
MethodCodeType:=MethodCodeType.Runtime)> _
Sub BindAsLegacyV2Runtime()
End Interface
End Class
Please note that I didn't come up with this code - I may have even found it on this site - but I can't find the original contributor. However, it works for me so you may want to give it a try.