Скачать или смотреть Resolving the System.Security.Cryptography.Algorithms Load Error in C# with CSharpScript

Discover how to fix the `System.IO.FileNotFoundException` error in C- when using the CSharpScript library, ensuring smooth operation in your .NET applications.
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This video is based on the question https://stackoverflow.com/q/73580978/ asked by the user 'Charly Paris' ( https://stackoverflow.com/u/9664771/ ) and on the answer https://stackoverflow.com/a/73630707/ provided by the user 'Charly Paris' ( https://stackoverflow.com/u/9664771/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Resolving the System.Security.Cryptography.Algorithms Load Error in C- with CSharpScript

When working with the CSharpScript library in a .NET Framework application, developers may encounter a frustrating error: System.IO.FileNotFoundException related to System.Security.Cryptography.Algorithms. This issue arises during execution, disrupting your ability to leverage the capabilities of dynamic scripting in C-. If you're facing this challenge, you're not alone! In this guide, we’ll dive into the causes of this error and explore a straightforward solution.

Understanding the Problem

What is the Error?

The error message you might see includes phrases like:

FileNotFoundException: Indicates that the application cannot locate the specified file or assembly.

Affected assembly: System.Security.Cryptography.Algorithms, particularly when you attempt to execute a method in your controller that uses the CSharpScript library.

Why is This Happening?

In your scenario, while working on a website using .NET Framework 4.7.2, it appears that there might be a discrepancy between the version of the System.Security.Cryptography.Algorithms assembly your project references and the one needed during execution. Even if you updated your NuGet package to version 4.3.1, the binding redirect in your web.config might still cause conflicts. The essence of the problem lies in assembly resolution that .NET uses at runtime.

Step-by-Step Solution

Step 1: Remove the dependentAssembly Block

The simplest and most effective solution to resolve this issue involves modifying your web.config file. Follow these steps:

Open your project's web.config file.

Look for the section that contains dependentAssembly. It will look something like this:

[[See Video to Reveal this Text or Code Snippet]]

Delete the entire dependentAssembly block.

By removing this block, you are allowing the application to utilize the version of System.Security.Cryptography.Algorithms that is already referenced in your NuGet package without forcing a conflict.

Step 2: Test the Application

After you've made the changes, save the web.config file and run your application again. Navigate to the part of your application that calls the controller method you previously defined.

If everything goes smoothly, the System.IO.FileNotFoundException should no longer occur, allowing you to successfully execute your code and utilize the capabilities of the CSharpScript library!

Conclusion

Errors related to assembly loading can be quite annoying, but they’re often resolvable with some straightforward adjustments. In this case, by removing the dependentAssembly block from your web.config file, you can overcome the System.Security.Cryptography.Algorithms loading issue and keep your .NET application running smoothly. Remember that assembly versioning can often lead to unexpected behavior, so always ensure that your references are up to date and consistent across your project.

If you continue to struggle with similar issues or have questions about other aspects of C- programming, feel free to reach out for help. Happy coding!