Could not load file or assembly temporary asp net files


ASP.NET is a popular programming language used for building web applications. However, like any other programming language, it can encounter errors and issues that need to be resolved. One common error that developers may come across is the “Could not load file or assembly temporary asp net files” error. In this article, we will explore this error and provide possible solutions with examples.

Understanding the Error

The “Could not load file or assembly temporary asp net files” error typically occurs when the ASP.NET is unable to load a specific file or assembly related to temporary ASP.NET files. These temporary files are generated by ASP.NET during the compilation and of web applications.

Possible Solutions

There are several possible solutions to the “Could not load file or assembly temporary asp net files” error. Let's explore some of them:

1. Clear Temporary ASP.NET Files

One of the steps to take when encountering this error is to clear the temporary ASP.NET files. These files are stored in a specific on the server. By deleting these files, you can ensure that any corrupted or outdated files are removed, allowing ASP.NET to generate new ones.

// Example code to clear temporary ASP.NET files
System.IO.DirectoryInfo tempDirectory = new System.IO.DirectoryInfo(System.Web..HostingEnvironment.MapPath("~/App_Data/Temp"));
 (System.IO.FileInfo file in tempDirectory.GetFiles())

By executing the above code, you can clear the temporary ASP.NET files and potentially resolve the error.

2. Check File and Assembly References

Another possible cause of the error is incorrect file or assembly references in your ASP.NET application. Ensure that all the required files and assemblies are correctly and exist in the specified locations. You can also check if any referenced files or assemblies are or outdated.

3. Verify File Permissions

The error can also due to insufficient file permissions. Make sure that the ASP.NET process has the necessary permissions to access and load the required files and assemblies. You can check the file permissions and adjust them accordingly to resolve the error.

4. Restart ASP.NET Services

In some cases, restarting the ASP.NET services can help resolve the error. This can be done by restarting the Internet Information Services (IIS) or by recycling the application pool associated with your ASP.NET application.


The “Could not load file or assembly temporary asp net files” error can be frustrating, but with the right approach, it can be resolved. In this article, we discussed some possible solutions to tackle this error. By clearing temporary ASP.NET files, checking file and assembly references, verifying file permissions, and restarting ASP.NET services, you can increase the chances of resolving the error and ensuring smooth execution of your ASP.NET web application.

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