Errors Encountered After Upgrading from .NET 8 to .NET 9
Error 1: System.InvalidOperationException - Missing Asset File
Error Message:
System.InvalidOperationException: No file exists for the asset at either location 'wwwroot\css\ace\ace.bundle.css' or 'wwwroot\css\ace\ace.bundle.css'
Details:
After upgrading my project from .NET 8 to .NET 9, I encountered this error during the rebuild process. However, the application runs well despite the rebuild issue. This indicates that the missing asset (ace.bundle.css) is referenced somewhere in the project configuration but does not exist in the specified directory.
Image Reference:
<img src="https://i.imgur.com/0YVcAeS.png" />
https://i.imgur.com/0YVcAeS.png
Error 2: TypeError - Promise Constructor Issue
Error Message:
TypeError: Promise constructor cannot be invoked without 'new'
Message=
Source=
StackTrace:
at Number.Promise (<anonymous>)
at https://localhost:7015/assets/plugins/global/plugins.bundle.js:64:34950
at s (https://localhost:7015/assets/plugins/global/plugins.bundle.js:64:353)
at https://localhost:7015/assets/plugins/global/plugins.bundle.js:64:34919
at https://localhost:7015/assets/plugins/global/plugins.bundle.js:64:123
at https://localhost:7015/assets/plugins/global/plugins.bundle.js:64:127
Details:
And now, I also encountered a JavaScript runtime error that is preventing the application from running. The error occurs in the plugins.bundle.js file.
Image Reference:
<img src="https://i.imgur.com/waU5zLB.png" />
https://i.imgur.com/waU5zLB.png
Replies (3)
Upgrading from .NET 8 to .NET 9 can sometimes lead to unexpected errors, such as compatibility issues with deprecated APIs, breaking changes in libraries, or migration conflicts in project dependencies. Developers may face challenges like missing assemblies, framework mismatches, or performance optimizations that require code adjustments. To troubleshoot effectively, reviewing official .NET release notes and updating NuGet packages is essential. Just like ensuring a smooth installation of Insta2Pro APK, carefully checking system requirements and resolving conflicts can help avoid crashes and enhance performance in the new environment.
After upgrading from .NET 8 to .NET 9, I encountered several compatibility issues, particularly with deprecated APIs Tylenol arthritis and broken dependencies. I had to revise some code, update libraries, and ensure the project configuration matched .NET 9's new standards. Testing thoroughly became crucial to resolve these errors efficiently.
Hi,
Sorry for the delay in reply.
In Metronic source code, we do not have ace.bundle.css, is it your custom file?
Regards,
Lauris Stepanovs,
Keenthemes Support Team
