Error thrown when I'm trying to load log4net assembly - log4net

I'm try to build project that use LinqToExcel library. Additionally, I'm use log4net to write logs.
My problem started when I'm tryomg to run this lines of code:
var excel = new ExcelQueryFactory(ExcelPath);
return (from r in excel.Worksheet<RowDetails>(company.Name)
select r).Count();
This line thrown exception:
ERROR MyProj.Program Main:System.IO.FileLoadException: Could not load
file or assembly 'log4net, Version=1.2.11.0, Culture=neutral,
PublicKeyToken=669e0ddf0bb1aa2a' or one of its dependencies. The
located assembly's manifest definition does not match the assembly
reference. (Exception from HRESULT: 0x80131040) File name: 'log4net,
Version=1.2.11.0, Culture=neutral, PublicKeyToken=669e0ddf0bb1aa2a'
It's important to note that I'm successful to use log4net before this line.
I would appreciate any help.
Thanks a lots!

As marc_s pointed out, this problem usually appears when trying to load different versions of the same assembly. Make sure, that your project uses the same assembly version as the LinqToExcel library, which is also dependent on log4net. Also any other libraries should use the same assembly version. To solve the issue, you can also try to use assembly redirect in your app.config like so:
<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<dependentAssembly>
<assemblyIdentity name="log4net" publicKeyToken="669e0ddf0bb1aa2a" culture="neutral" />
<bindingRedirect oldVersion="1.2.10.0" newVersion="1.2.11.0" />
</dependentAssembly>
</assemblyBinding>
</runtime>

try to install it using nuget
Install-Package log4net -Version 2.0.0
Version 2.0.0 is for log4net 1.2.11

I'm having similar problem. I think that the problem is in LinqtoExcel referencing Log4Net version 1.2.11, and you have referenced Log4Net sepratly and you get latest 1.2.13 version. In build output you'll end up with 1.2.13, and when LintoExcel calls Log4Net it expects 1.2.11 and error ocures.

I got this issue after upgrading log4net through NuGet, only to find that the newer version was signed with a different key.
You can grab the 'oldkey' version from the apache log4net site and then it worked for me.

Related

CS0012 The type 'XtraReport' is defined in an assembly that is not referenced

I recently updated my visual studio to 2017 Enterprise.
I used to use DevExpress v15.1
Today, I upgraded my DevExpress to version 18.1 and when I build my .Net MVC5 Application Solution, I got the following error
The type 'XtraReport' is defined in an assembly that is not
referenced. You must add a reference to assembly
'DevExpress.XtraReports.v15.1, Version=15.1.8.0, Culture=neutral,
PublicKeyToken=b88d1754d700e49a'.
The above Error is located in ReportController.cs
I checked my references Folder under the project to find that the DevExpress.XtraReports.v18.1 is there.
What might be the cause of this error?.
Thank you for your help.
Based from the message, the XtraReport still references the older version of its DLL assembly:
'DevExpress.XtraReports.v15.1, Version=15.1.8.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a'
Usually this problem occurred because Project Converter failed to update XtraReport related references after upgrade. In this case, you can manually remove all references to older assemblies (version 15.1) and then add references to new assemblies (version 18.1).
Also make sure that web.config file has these assembly information like below example (X indicates revision number):
<add assembly="DevExpress.XtraReports.v18.1, Version=18.1.X.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a" />
<add assembly="DevExpress.XtraReports.v18.1.Web, Version=18.1.X.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a" />
If the solution above failed, try install the assemblies to the Global Assembly Cache (GAC) by navigating to X:\Windows\assembly (X stands for the system drive letter) and copy all new DevExpress assemblies to that folder (including DevExpress.XtraReports.v18.1), as mentioned in this issue.
Related issues:
Errors after upgrading DevExpress version
DevExpress.XtraReports.UI.XtraReport is not defined after upgrade
The type 'DevExpress.XtraReports.UI.XtraReport' is defined in an assembly that is not referenced

ASP.NET Boilerplate MVC 5.x template fails to start

After downloading ASP.NET MVC 5.x template, I update the connection string, restore NuGet packages and then try to run Update-Database command in Package Manager Console, but I consistently get the following error:
Could not load file or assembly 'Castle.Core, Version=4.0.0.0, Culture=neutral, PublicKeyToken=407dd0808d44fbdc' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)
I was able to solve this once by removing all packages and adding them back one at a time, but this is extremely time-consuming.
I have had this same experience with both the Angular and Multipage versions, and I am using VS2017 Community.
What am I doing wrong?
in the Web project's web.config it reads:
<dependentAssembly>
<assemblyIdentity name="Castle.Core" publicKeyToken="407dd0808d44fbdc" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-4.0.0.0" newVersion="4.0.0.0" />
</dependentAssembly>
You can remove that binding redirect.

Building Visual Studio C++ solution 2015 failed using TFS 2013 team build

We have TFS build machine configured to build source code from TFS. On this machine we had Team Foundation Server 2013 together with Microsoft Build Tools 2013 installed and then recently, we installed Microsoft Build Tools 2015. In the build defintion, we put /tv:14.0 for MSBuild arguments to indicate we want to use version 14.0 of MSBuild. Also, we set the perform code analysis to be false so that it won't perform code analysis.
However, when we queue a build, it failed with given errors:
C:\Program Files (x86)\MSBuild\Microsoft\VisualStudio\v14.0\CodeAnalysis\Microsoft.CodeAnalysis.targets (214): The source file for this compilation can be found at: "C:\Users\tfsservice\AppData\Local\Temp\b54ca1bb-e696-4214-a196-5c79c32345cd.txt"
C:\Program Files (x86)\MSBuild\Microsoft\VisualStudio\v14.0\CodeAnalysis\Microsoft.CodeAnalysis.targets (214): An error has occurred during compilation. error CS1705: Assembly 'Microsoft.Build.Utilities.Core, Version=14.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' uses 'Microsoft.Build.Framework, Version=14.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' which has a higher version than referenced assembly 'Microsoft.Build.Framework, Version=12.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'
C:\Program Files (x86)\MSBuild\Microsoft\VisualStudio\v14.0\CodeAnalysis\Microsoft.CodeAnalysis.targets (214): The "SetEnvironmentVariable" task was not found. Check the following: 1.) The name of the task in the project file is the same as the name of the task class. 2.) The task class is "public" and implements the Microsoft.Build.Framework.ITask interface. 3.) The task is correctly declared with <UsingTask> in the project file, or in the *.tasks files located in the "C:\Program Files (x86)\MSBuild\14.0\bin\amd64" directory.
Does anybody experience this issue before?
It seems like the Microsoft.Build.Utilities.Core was referenced to the incorrect version of Microsoft.Build.Framework.
However, in MSBuild.exe.config, this assembly is redirected corectlly
<dependentAssembly>
<assemblyIdentity name="Microsoft.Build.Framework" publicKeyToken="b03f5f7f11d50a3a" culture="neutral"/>
<bindingRedirect oldVersion="0.0.0.0-99.9.9.9" newVersion="14.0.0.0"/>
</dependentAssembly>
Any helps are appreciated.
P.s. The solution we want to build is a visual c++ solution upgraded from VS 2013 to VS 2015.
Seems that many other community members have the similar issue, the /tv:14.0 argument doesn't work. Check this link for the detailed information.
The workaround is: instead of using the /tv:14.0 argument, you need to customize the tfs build process template to set ToolPath of the Run MSBuild for Project to target to MSBuild14; and set ToolVersion to "14.0".

How to fix Newtonsoft.Json assembly loading error?

I'm attempting to load a pre-existing Umbraco CMS site into a Visual Studio project and am caught up in a bit of DLL hell.
Here is the error message I get when attempting to compile the site:
Could not load types from assembly Umbraco.Core, Version=1.0.5462.37503, Culture=neutral, PublicKeyToken=null, errors:
Exception: System.IO.FileNotFoundException: Could not load file or assembly 'Newtonsoft.Json, Version=6.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed' or one of its dependencies. The system cannot find the file specified.
File name: 'Newtonsoft.Json, Version=6.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed'
I've attempted to re-install Newtonsoft from NuGet, re-install Umbraco from NuGet, delete all DLLs and re-install, removed the Newtonsoft dependentAssembly, every possible solution I've been able to find and this error continues to come up.
Any suggestions?
I'm guessing the binding redirect isn't set up correctly in the web.config file. Try running this in the nuget package manager console:
PM> Get-Project –All | Add-BindingRedirect
This ended up being a bit of a misunderstanding on my part from following the Umbraco videos. I was attempting to set up a new Visual Studio project, import all the DLLs needed, and then move the site content into the project.
All I really needed to do was create a blank project, then move the site content, with all of its DLLs, into the project. This let me immediately start editing the project.
The best solution was to install an earlier version of the package and then upgrade.

visual studio express 2012 app.config remapping assembly

I moved a project from MVC 3 to MVC 4 a while ago now.
when I build, I get the messages
1> No way to resolve conflict between "System.Web.Mvc, Version=3.0.0.0 ..." and , Version=2.0.0.0
1> Consider app.config remapping of assembly "System.Web.WebPages ..." from Version "1.0.0.0" to Version "2.0.0.0" to solve conflict and get rid of warning.
1> Consider app.config remapping of assembly "System.Web.WebPages.Razorfrom Version "1.0.0.0" [c:\Program Files (x86)\Microsoft ASP.NET\ASP.NET Web Pages\v1.0\Assemblies\System.Web.WebPages.Razor.dll] to Version "2.0.0.0" [C:\Users\OEM\documents\visual studio 2012\Projects\DabTrial\packages\Microsoft.AspNet.WebPages.2.0.30506.0\lib\net40\System.Web.WebPages.Razor.dll] to solve conflict and get rid of warning.
and so on.
When I look at references, they are all the later versions, and the web.config only refers to the later versions. When I search the entire solution directory by the public key token (in windows explorer) I find no XML type files with references to the earlier versions.
obviously the path to the files is different, but I cannot find where the compiler is being directed to the path for the earlier .dll file.
The project builds and runs fine, but I assume the compiler is suggesting these changes for a reason. Thanks for any help.
Your nuget dependencies are probably referencing the MVC3 version. You can try putting the following into your web config to force the MVC4 version:
<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<dependentAssembly>
<assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-3.0.0.0" newVersion="4.0.0.0" />
</dependentAssembly>
</assemblyBinding>
</runtime>
You could also try running the following in the Package Manager Console
Update-Package -Reinstall
You have to have at least version 2.1 of nuget for this command but it will update your packages and retarget them if you have updated .NET. You can check this post for more information.
Retargeting solution from .Net 4.0 to 4.5 - how to retarget the NuGet packages?
I also had such problems. I did just two things:
updated System.Web.Mvc and all dependencies to the last version (5.2.3)
Rebuild all solution (I did using "Solution -> Clean Solution", then "Solution -> Build Solution")
Try setting AutoGenerateBindingRedirects to true in the project file.

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