Question

I’m experiencing an error when using the windows installer to install an event source in a product I am deploying.

The error message I receive states the following …

Unable to get installer types in the c:\temp\program.exe assembly. –> Unable to load one or more of the requested types. Retrieve the LoaderExceptions property for more information.

Here is the block of code that creates the event source installer …

using System; using System.Collections.Generic; using System.ComponentModel; using System.Configuration.Install; using System.Diagnostics;  namespace myapplication {     [RunInstaller(true)]     public partial class EventSourceInstaller : Installer     {         public EventSourceInstaller()         {             InitializeComponent();              string eventSourceName = 'MyAppSourceName';             if (!EventLog.SourceExists(eventSourceName))             {                 EventSourceCreationData data = new EventSourceCreationData(eventSourceName, 'Application');                 EventLog.CreateEventSource(data);                 EventLog.WriteEntry(eventSourceName, 'Source Added.');             }         }     } } 

In the installer project I’ve added a custom action on Install named ‘Primary output from MyApplication (Active)’ to run the event source installer.

I have the following questions

1. Has anyone else run across this and what was the issue?

2. How do I go about retrieving the LoaderExceptions property of the installer?

Answer 1

I have never seen that error, but the path c:\temp\program.exe is very strange. Are you trying to run the installer from the c:\temp\ directory?

Are you certain the output of all projects and all third-party DLLs you use are included in the Deployment project? Click on all included files in the Deployment project and check their SourcePath property; are they to the original source files and not the target output folder? Not the temp folder?