https://www.niceonecode.com Latest Feed from NiceOneCode en-us https://www.niceonecode.com/Images/FabIcon/ios-180x180.png https://www.niceonecode.com 180 180 NiceOneCode Copyright NiceOneCode, 2026 11:01:00 AM 20 NiceOneCode What are the latest bugs and fixes in C# Entity Framework Core migrations in 2025 (.NET 9 / .NET 10)? ykl https://www.niceonecode.com/question/62505/what-are-the-latest-bugs-and-fixes-in-csharp-entity-framework-core-migrations-in-2025-.net-9-.net-10- 3:50:45 AM https://www.niceonecode.com/question/62505/what-are-the-latest-bugs-and-fixes-in-csharp-entity-framework-core-migrations-in-2025-.net-9-.net-10- .net-10.0.net-9.0c#entity-framework-core What are the latest bugs and fixes in C# Entity Framework Core migrations in 2025 (.NET 9 / .NET 10)? Error: System.InvalidOperationException: Collection was modified; enumeration operation may not execute Rashmi https://www.niceonecode.com/question/51525/error-system.invalidoperationexception-collection-was-modified-enumeration-operation-may-not-execute 11:23:14 PM https://www.niceonecode.com/question/51525/error-system.invalidoperationexception-collection-was-modified-enumeration-operation-may-not-execute .net-9.0c#entity-framework-core Error: System.InvalidOperationException: Collection was modified; enumeration operation may not execute Server crashes exactly at sql async reader Priya https://www.niceonecode.com/question/51442/server-crashes-exactly-at-sql-async-reader 10:51:42 PM https://www.niceonecode.com/question/51442/server-crashes-exactly-at-sql-async-reader c#.net-9.0entity-framework-coreblazor Server crashes exactly at sql async reader Error Message: Unable to cast object of type 'System.DBNull' to type 'System.String'. Rashmi https://www.niceonecode.com/question/51438/error-message-unable-to-cast-object-of-type-system.dbnull-to-type-system.string 5:00:11 AM https://www.niceonecode.com/question/51438/error-message-unable-to-cast-object-of-type-system.dbnull-to-type-system.string .net-9.0c#entity-framework-coresql-server Error Message: Unable to cast object of type 'System.DBNull' to type 'System.String'. Assets file '\obj\project.assets.json' doesn't have a target for 'net8.0'. Ensure that restore has run and that you have included 'net8.0' in the TargetFrameworks for your project. Jelly https://www.niceonecode.com/question/51401/assets-file-objproject.assets.json-doesn-t-have-a-target-for-net8.0-.-ensure-that-restore-has-run-an 12:54:35 AM https://www.niceonecode.com/question/51401/assets-file-objproject.assets.json-doesn-t-have-a-target-for-net8.0-.-ensure-that-restore-has-run-an .net-9.0 Assets file '\obj\project.assets.json' doesn't have a target for 'net8.0'. Ensure that restore has run and that you have included 'net8.0' in the TargetFrameworks for your project. Result: Failure Exception: System.Exception: Value cannot be null. (Parameter 'buffer') Priya https://www.niceonecode.com/question/51373/result-failure-exception-system.exception-value-cannot-be-null.-parameter-buffer- 10:56:06 PM https://www.niceonecode.com/question/51373/result-failure-exception-system.exception-value-cannot-be-null.-parameter-buffer- .net-8.0itext-7 Result: Failure Exception: System.Exception: Value cannot be null. (Parameter 'buffer') Error: Connection disconnected with error 'Error: WebSocket closed with status code: 1006 (no reason given) Priya https://www.niceonecode.com/question/51367/-error-connection-disconnected-with-error-error-websocket-closed-with-status-code-1006-no-reason-given- 7:58:34 AM https://www.niceonecode.com/question/51367/-error-connection-disconnected-with-error-error-websocket-closed-with-status-code-1006-no-reason-given- .net-8.0blazortelerik-ui-for-blazor Error: Connection disconnected with error 'Error: WebSocket closed with status code: 1006 (no reason given) System.ArgumentException: {"Message":"ErrorCode:ArgumentInvalid;Property or Tag name has invalid characters. Must not contain Control Characters, '.', '$', '#', or ' ' beginer https://www.niceonecode.com/question/51335/system.argumentexception-{message-errorcode-argumentinvalid-property-or-tag-name-has-invalid-characte 2:23:38 AM https://www.niceonecode.com/question/51335/system.argumentexception-{message-errorcode-argumentinvalid-property-or-tag-name-has-invalid-characte azure-webjobsc#.net-8.0 System.ArgumentException: {"Message":"ErrorCode:ArgumentInvalid;Property or Tag name has invalid characters. Must not contain Control Characters, '.', '$', '#', or ' ' error NU1101: Unable to find package Telerik.Reporting. No packages exist with this id in source(s) Rashmi https://www.niceonecode.com/question/41307/error-nu1101-unable-to-find-package-telerik.reporting.-no-packages-exist-with-this-id-in-source-s- 4:18:41 AM https://www.niceonecode.com/question/41307/error-nu1101-unable-to-find-package-telerik.reporting.-no-packages-exist-with-this-id-in-source-s- .net-8.0c#azure-devopsazure-pipeline error NU1101: Unable to find package Telerik.Reporting. No packages exist with this id in source(s) iText.Kernel.Exceptions.PdfException: 'Unknown PdfException.' ykl https://www.niceonecode.com/question/31245/itext.kernel.exceptions.pdfexception-unknown-pdfexception.- 4:35:23 AM https://www.niceonecode.com/question/31245/itext.kernel.exceptions.pdfexception-unknown-pdfexception.- itext-7 iText.Kernel.Exceptions.PdfException: 'Unknown PdfException.' As .NET continues to evolve, .NET 11 and C# 15 introduce some of the most impactful changes in recent years—especially around type safety, performance, and developer productivity. If you're a .NET developer working with APIs, microservices, or enterprise apps, this post breaks down real-world code examples you can actually use—not just theory. Rahul Maurya https://www.niceonecode.com/blog/125/csharp-15-.net-11-real-code-examples-every-.net-developer-should-see 11:15:13 PM https://www.niceonecode.com/blog/125/csharp-15-.net-11-real-code-examples-every-.net-developer-should-see c#.net-11-preview As .NET continues to evolve, .NET 11 and C# 15 introduce some of the most impactful changes in recent years—especially around type safety, performance, and developer productivity. If you're a .NET developer working with APIs, microservices, or enterprise apps, this post breaks down real-world code examples you can actually use—not just theory. If you're facing an issue where Docker Desktop is not opening, but the Docker service is running successfully, you're not alone. This is a common problem on Windows 11 where Docker starts in the background but the UI never appears. In this guide, we’ll show you a simple 2-step fix that works in most cases. Rahul Maurya https://www.niceonecode.com/blog/124/docker-desktop-not-opening-on-windows-11-service-running-but-no-ui- 2:12:23 AM https://www.niceonecode.com/blog/124/docker-desktop-not-opening-on-windows-11-service-running-but-no-ui- docker-desktop If you're facing an issue where Docker Desktop is not opening, but the Docker service is running successfully, you're not alone. This is a common problem on Windows 11 where Docker starts in the background but the UI never appears. In this guide, we’ll show you a simple 2-step fix that works in most cases. Running n8n locally on Windows 11 is one of the fastest ways to start building automation workflows—without worrying about cloud setup or server costs. Smith https://www.niceonecode.com/blog/123/how-to-install-n8n-on-windows-11-using-docker-desktop-local-setup-guide- 1:25:12 AM https://www.niceonecode.com/blog/123/how-to-install-n8n-on-windows-11-using-docker-desktop-local-setup-guide- dockern8ndocker-desktop Running n8n locally on Windows 11 is one of the fastest ways to start building automation workflows—without worrying about cloud setup or server costs. If you're using shared hosting (like GoDaddy) or facing SMTP restrictions, switching to the Zoho Mail API is the most reliable solution. In this guide, we’ll walk through a real-world, working approach to integrate Zoho Mail API in .NET — including common mistakes, fixes, and production-ready tips. Rahul Maurya https://www.niceonecode.com/blog/122/integrating-zoho-mail-api-in-.net-without-smtp-issues-a-complete-guide 3:09:15 AM https://www.niceonecode.com/blog/122/integrating-zoho-mail-api-in-.net-without-smtp-issues-a-complete-guide emailc# If you're using shared hosting (like GoDaddy) or facing SMTP restrictions, switching to the Zoho Mail API is the most reliable solution. In this guide, we’ll walk through a real-world, working approach to integrate Zoho Mail API in .NET — including common mistakes, fixes, and production-ready tips. This feature is common on Samsung smartphones and can sometimes feel more annoying than helpful—especially when it pops up frequently. In this guide, we’ll explain what it is, why it happens, and how to disable it permanently. Priya https://www.niceonecode.com/blog/121/how-to-disable-accidental-touch-protection-on-samsung-phones-step-by-step-guide- 11:05:29 PM https://www.niceonecode.com/blog/121/how-to-disable-accidental-touch-protection-on-samsung-phones-step-by-step-guide- tech This feature is common on Samsung smartphones and can sometimes feel more annoying than helpful—especially when it pops up frequently. In this guide, we’ll explain what it is, why it happens, and how to disable it permanently. Promoting your product, service, coding tool, or idea is simple on NiceOneCode. You can share promotional content in the form of status updates, images, and engage with other users through likes and comments. Pratibha https://www.niceonecode.com/blog/120/how-to-create-promotional-posts-or-promote-products-on-niceonecode 8:18:50 AM https://www.niceonecode.com/blog/120/how-to-create-promotional-posts-or-promote-products-on-niceonecode helppost Promoting your product, service, coding tool, or idea is simple on NiceOneCode. You can share promotional content in the form of status updates, images, and engage with other users through likes and comments. Building connections is important — but managing them is equally important. On NiceOneCode, you can easily: Accept a friend request, Reject a friend request, Unfollow a user. In this guide, we’ll explain how to do all three actions step by step. Pratibha https://www.niceonecode.com/blog/119/how-to-unfollow-accept-or-reject-friend-request-on-niceonecode 8:12:29 AM https://www.niceonecode.com/blog/119/how-to-unfollow-accept-or-reject-friend-request-on-niceonecode helppost Building connections is important — but managing them is equally important. On NiceOneCode, you can easily: Accept a friend request, Reject a friend request, Unfollow a user. In this guide, we’ll explain how to do all three actions step by step. Connecting with other developers and learners on NiceOneCode helps you grow faster. You can follow users, send friend requests, view their updates, and build your professional coding network. In this guide, we’ll explain how to follow or send a friend request on NiceOneCode step by step. Pratibha https://www.niceonecode.com/blog/118/how-to-follow-or-send-a-friend-request-on-niceonecode 8:05:00 AM https://www.niceonecode.com/blog/118/how-to-follow-or-send-a-friend-request-on-niceonecode helppost Connecting with other developers and learners on NiceOneCode helps you grow faster. You can follow users, send friend requests, view their updates, and build your professional coding network. In this guide, we’ll explain how to follow or send a friend request on NiceOneCode step by step. .NET 10 is a Long-Term Support (LTS) release designed for stability, performance, and long-term maintenance. Migrating from .NET 9 to .NET 10 is generally straightforward, but Blazor Server, ASP.NET Core hosting, and authentication flows require special attention due to breaking behavioral changes. This guide consolidates Microsoft documentation, Uno Platform guidance, and community learnings into a single, end-to-end migration playbook. Rahul Maurya https://www.niceonecode.com/blog/117/migrating-from-.net-9.0-to-.net-10.0-a-complete-guide-including-asp.net-core-ef-core-maui-uno-and-b 11:51:12 PM https://www.niceonecode.com/blog/117/migrating-from-.net-9.0-to-.net-10.0-a-complete-guide-including-asp.net-core-ef-core-maui-uno-and-b .net-9.0blazor.net-10.0 .NET 10 is a Long-Term Support (LTS) release designed for stability, performance, and long-term maintenance. Migrating from .NET 9 to .NET 10 is generally straightforward, but Blazor Server, ASP.NET Core hosting, and authentication flows require special attention due to breaking behavioral changes. This guide consolidates Microsoft documentation, Uno Platform guidance, and community learnings into a single, end-to-end migration playbook. Christmas celebrates the birth of Jesus Christ, who is believed to represent love, peace, forgiveness, and hope. Smith https://www.niceonecode.com/blog/116/meaning-importance-of-the-celebration-of-christmas-day-and-new-year-2026 7:16:58 AM https://www.niceonecode.com/blog/116/meaning-importance-of-the-celebration-of-christmas-day-and-new-year-2026 celebration Christmas celebrates the birth of Jesus Christ, who is believed to represent love, peace, forgiveness, and hope. SignalR for real-time web functionality Rahul Maurya https://www.niceonecode.com/discussion/SignalR-for-real-tim/d4bab4fd-e382-40ce-b659-1d7742496ade https://www.niceonecode.com/discussion/SignalR-for-real-tim/d4bab4fd-e382-40ce-b659-1d7742496ade discussion SignalR for real-time web functionality MVC Design pattern Rahul Maurya https://www.niceonecode.com/discussion/MVC-Design-pattern/6b85323e-1c2c-40be-85a8-53db62e88110 https://www.niceonecode.com/discussion/MVC-Design-pattern/6b85323e-1c2c-40be-85a8-53db62e88110 discussion MVC Design pattern What is the current status of artificial intelligence in the world? Brian https://www.niceonecode.com/discussion/What-is-the-current-/54a98f66-d12d-48d8-9f60-ac1a2cf3d6a9 https://www.niceonecode.com/discussion/What-is-the-current-/54a98f66-d12d-48d8-9f60-ac1a2cf3d6a9 discussion What is the current status of artificial intelligence in the world? Modern Web Development using ASP.NET Core template, Vue.js and Webpack Rahul Maurya https://www.niceonecode.com/discussion/Modern-Web-Developme/ee6d6c92-3166-46ba-b771-cf72ba90b041 https://www.niceonecode.com/discussion/Modern-Web-Developme/ee6d6c92-3166-46ba-b771-cf72ba90b041 discussion Modern Web Development using ASP.NET Core template, Vue.js and Webpack Is Programming an Art or a Science? Rahul Maurya https://www.niceonecode.com/discussion/Is-Programming-an-Ar/aabc77e2-de17-40a6-821e-e855d1cc1504 https://www.niceonecode.com/discussion/Is-Programming-an-Ar/aabc77e2-de17-40a6-821e-e855d1cc1504 discussion Is Programming an Art or a Science? Blazor is a UI Web framework for building interactive web UIs using C# instead of JavaScript Rahul Maurya https://www.niceonecode.com/discussion/Blazor-is-a-UI-Web-f/de9df60c-2634-476a-8077-ef24116a92cd https://www.niceonecode.com/discussion/Blazor-is-a-UI-Web-f/de9df60c-2634-476a-8077-ef24116a92cd discussion Blazor is a UI Web framework for building interactive web UIs using C# instead of JavaScript Generative AI refers to artificial intelligence systems that can create new content, such as text, images, audio, and video, based on patterns learned from existing data. Rahul Maurya https://www.niceonecode.com/discussion/Generative-AI-refers/48639196-ade8-4346-8fb7-f4ae0ac69353 https://www.niceonecode.com/discussion/Generative-AI-refers/48639196-ade8-4346-8fb7-f4ae0ac69353 discussion Generative AI refers to artificial intelligence systems that can create new content, such as text, images, audio, and video, based on patterns learned from existing data. How to open OST files without Exchange Server? Caroline Chadbourne https://www.niceonecode.com/discussion/-How-to-open-OST-fil/5cd535b9-18ca-437d-a0ab-fa71ca45d3f6 https://www.niceonecode.com/discussion/-How-to-open-OST-fil/5cd535b9-18ca-437d-a0ab-fa71ca45d3f6 discussion How to open OST files without Exchange Server?