Could not load file or assembly 'Spire.License, Version=1.3.2.40, Culture=neutral, PublicKeyToken=b1144360237c8b3f' or one of its dependencies

Question

I am using Spire.Xls in my web project to create an excel sheet on the fly.In local every thing is working fine but once i deployed it on the Server , it is throwing exception as

System.IO.FileNotFoundException: Could not load file or assembly 'Spire.License, Version=1.3.2.40, Culture=neutral, PublicKeyToken=b1144360237c8b3f' or one of its dependencies. The system cannot find the file specified. File name: 'Spire.License, Version=1.3.2.40, Culture=neutral, PublicKeyToken=b1144360237c8b3f'

Please find below the detailed error log :-

=== Pre-bind state information === LOG: User = IIS APPPOOL\ASP.NET v4.0 LOG: DisplayName = Spire.License, Version=1.3.2.40, Culture=neutral, PublicKeyToken=b1144360237c8b3f (Fully-specified) LOG: Appbase = file:///C:/ePareeksha/ePareeksha/ LOG: Initial PrivatePath = C:\ePareeksha\ePareeksha\bin

Calling assembly : Spire.XLS, Version=7.1.0.7040, Culture=neutral, PublicKeyToken=663f351905198cb3.

LOG: This bind starts in default load context. LOG: Using application configuration file: C:\ePareeksha\ePareeksha\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: Spire.License, Version=1.3.2.40, Culture=neutral, PublicKeyToken=b1144360237c8b3f LOG: The same bind was seen before, and was failed with hr = 0x80070002.

Please guide me that how i will fix this .

Answer 1

Please try to copy the Spire.License.dll to the path where you place the Spire.Xls.dll (which is referenced at runtime) and make sure they are placed in same folder.

Answer 2

Is the Spirel.License.dll present on the server in the working directory? Or is it registered in the GAC? Ie have you done

c:\gacutil /i path\to\dllname.dll

The exception states that the system cannot find the referenced dll.

Another thing you could try is to set "Copy Local" to true in the properties for the reference.