Skip to main content

Fuslogvw.exe - assembly binding logger

By


How many time did you had problems with your references of a project in .NET? Not very often but when this occurs you can spend a lot of hours trying to find what is the problem. Invalid version of assembly, incorrect path to your assembly can cause these problems.
Errors like the following can have the same source:

  • Could not load file or assembly 'xxx, Version=yyyy, Culture=neutral, PublicKeyToken=zzz' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)
  • This assembly is protected by an unregistered version …

In these cases a great tool can be used to see the loading stack of each assembly. The name of the tool is Assembly Binding Log Viewer (Fuslogvw.exe). It is preinstalled if you have Visual Studio already installed.
This tool will log all the assembly bindings from all the processes that are running on the given computer. Based on this information we can see the exact problem of the binding, the path from where the assembly is loading and much more.
You can start the program using “fuslogvw.exe” command from VS command prompt. Don’t forget to run it as an Administrator.
You should know that all the logs are written in Internet Explorer temporary file folder. Because of this if the temporary folder of the IE is corrupt that you may have problem running this application. In the case you don’t see any kind of information, that you should clear the temporary folder of IE.
Also, don’t forget to click on the “Refresh” button. The UI is not automatically updated when new logs are available.
In the end, for a developer this tool can be very useful and you should try it.

Comments

Post a Comment

Popular posts from this blog

Windows Docker Containers can make WIN32 API calls, use COM and ASP.NET WebForms

By
After the last post , I received two interesting questions related to Docker and Windows. People were interested if we do Win32 API calls from a Docker container and if there is support for COM. WIN32 Support To test calls to WIN32 API, let’s try to populate SYSTEM_INFO class. [StructLayout(LayoutKind.Sequential)] public struct SYSTEM_INFO { public uint dwOemId; public uint dwPageSize; public uint lpMinimumApplicationAddress; public uint lpMaximumApplicationAddress; public uint dwActiveProcessorMask; public uint dwNumberOfProcessors; public uint dwProcessorType; public uint dwAllocationGranularity; public uint dwProcessorLevel; public uint dwProcessorRevision; } ... [DllImport("kernel32")] static extern void GetSystemInfo(ref SYSTEM_INFO pSI); ... SYSTEM_INFO pSI = new SYSTEM_INFO(...
Post a Comment
Read more

ADO.NET provider with invariant name 'System.Data.SqlClient' could not be loaded

By
Today blog post will be started with the following error when running DB tests on the CI machine: threw exception: System.InvalidOperationException: The Entity Framework provider type 'System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer' registered in the application config file for the ADO.NET provider with invariant name 'System.Data.SqlClient' could not be loaded. Make sure that the assembly-qualified name is used and that the assembly is available to the running application. See http://go.microsoft.com/fwlink/?LinkId=260882 for more information. at System.Data.Entity.Infrastructure.DependencyResolution.ProviderServicesFactory.GetInstance(String providerTypeName, String providerInvariantName) This error happened only on the Continuous Integration machine. On the devs machines, everything has fine. The classic problem – on my machine it’s working. The CI has the following configuration: TeamCity .NET 4.51 EF 6.0.2 VS2013 It see...
8 comments
Read more

Navigating Cloud Strategy after Azure Central US Region Outage

By
 Looking back, July 19, 2024, was challenging for customers using Microsoft Azure or Windows machines. Two major outages affected customers using CrowdStrike Falcon or Microsoft Azure computation resources in the Central US. These two outages affected many people and put many businesses on pause for a few hours or even days. The overlap of these two issues was a nightmare for travellers. In addition to blue screens in the airport terminals, they could not get additional information from the airport website, airline personnel, or the support line because they were affected by the outage in the Central US region or the CrowdStrike outage.   But what happened in reality? A faulty CrowdStrike update affected Windows computers globally, from airports and healthcare to small businesses, affecting over 8.5m computers. Even if the Falson Sensor software defect was identified and a fix deployed shortly after, the recovery took longer. In parallel with CrowdStrike, Microsoft provi...
Post a Comment
Read more