C # exception when loading DLL. Can't find a solution.

Question

I have a problem while loading DLLat runtime in C#.

The following code:

foreach (var f in Directory.EnumerateFiles(startFolder, "*.dll",            SearchOption.AllDirectories))
{
   try
   {
       var assembly = Assembly.LoadFrom(f);
       var types = assembly.GetTypes(); //exception raised here

       foreach (var type in types)
       {
            if (type.GetInterface("IPlayerFactory") != null)
                 instances.Add((IPlayerFactory)Activator.CreateInstance(type));
       }
       assembly = null;
    }
    catch (ReflectionTypeLoadException ex) { /* later, keep reading  */}

So the exception says:

An exception of type 'System.Reflection.ReflectionTypeLoadException' occurred in
mscorlib.dll but was not handled in user code

Additional information: Unable to load one or more of the requested types. Retrieve the    
LoaderExceptions property for more information.

I searched the stack a bit and found this one catchfor more information (source: here )

catch block:

catch (ReflectionTypeLoadException ex)
{
     StringBuilder sb = new StringBuilder();
     foreach (Exception exSub in ex.LoaderExceptions)
     {
          sb.AppendLine(exSub.Message);
          FileNotFoundException exFileNotFound = exSub as FileNotFoundException;
          if (exFileNotFound != null)
          {
              if (!string.IsNullOrEmpty(exFileNotFound.FusionLog))
              {
                  sb.AppendLine("Fusion Log:");
                  sb.AppendLine(exFileNotFound.FusionLog);
              }
          }
                    sb.AppendLine();
      }
      string errorMessage = sb.ToString();
      //Display or log the error based on your application.
      Console.WriteLine(sb);
 }

I managed to extract:

'Battleships.Desktop.vshost.exe' (CLR v4.0.30319: Battleships.Desktop.vshost.exe):
 Loaded 'C:\SomePath\some_dll.dll'. Cannot find
 or open the PDB file.
 A first chance exception of type 'System.Reflection.ReflectionTypeLoadException'  
 occurred in mscorlib.dll

I tried some solutions, but nothing works. Any fresh ideas?

Answer 1

, : " ".pdb file.if, , pdb, bin . - Fusion, fuslogvw . / , .