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I have several legacy VB6 programs that were automatically migrated to C#. Their core business logic is in place, but the Avalonia UI layer was wired up by the migration tool and now the solution refuses to compile. All blocking issues show up at build time—so we are talking pure compilation errors, not IDE warnings. The brief is deliberately narrow: • Get the project to build and run on .NET with Avalonia, nothing more. • Touch only the UI glue code that is currently breaking the build; leave the business logic, architecture, and any MVVM concerns exactly as they are. • Once compiled, the app just needs to open and allow basic user testing, with particular attention to the Data Entry Forms. We expect some unexpected runtime behaviour for now, and that is acceptable. Deliverables 1. A compiling Visual Studio (or JetBrains Rider) solution. 2. Fixed Avalonia XAML / code-behind wiring sufficient for the main window and Data Entry Forms to render and accept input. 3. A concise change log or commit notes so we can reproduce the build on another machine. No refactor, redesign, or cleanup tasks are in scope; speed and minimal surface-area changes are the priority. If you are comfortable untangling Avalonia XAML, event handlers, and resource references, this should be a focused, quick engagement. Basic user testing here means the UI opens and accepts input, not that the underlying workflows are complete.
ID do Projeto: 40154060
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Hi, I am a .NET developer with experience in building applications using Avalonia, including a recently developed project. I also have solid experience working with VB.NET. I would be pleased to discuss how my skills and experience could contribute to your work, and I look forward to the opportunity to collaborate with you. Kind regards,
$400 USD em 7 dias
6,0
6,0
58 freelancers estão ofertando em média $908 USD for esse trabalho

As a seasoned software developer with specialization in Microsoft technologies, including .NET and C# programming, I am uniquely equipped to tackle your Avalonia build errors. Despite the project maintaining its core business logic and architecture, it's imperative that the UI components are running smoothly to ensure seamless user experience. With years of experience, I am familiar with untangling issues on various coding layers and have ample knowledge of debugging complex projects identifing compilation errors. In my role at ZAWN Tech, I have successfully resolved similar migration issues - allowing applications to compile error-free by identifying key pain points swiftly and providing accurate resolutions. Our company ethos prioritizes speed in project delivery without compromising on quality or causing unnecessary changes that could disrupt system stability. Also, crucially for this project, our extensive experience includes leveraging existing code bases to improve applications' usability, speed, and reduce surface area changes. I will handle your project meticulously - modifying only necessary sections
$1.750 USD em 30 dias
8,7
8,7

Greetings, I understand you need your legacy VB6–migrated C# solution to compile and run, focusing only on fixing Avalonia UI wiring so the main window and Data Entry Forms render and accept input, without touching the business logic or architecture. Before we proceed, I would like to clarify a few points. 1, Are there any specific Avalonia versions or .NET targets the build must remain compatible with. 2, Do you want us to address all build errors at once or prioritize the main window and key forms first. 3, Should the concise change log include before/after XAML snippets or just high-level notes. Our team includes developers experienced in Avalonia XAML, event handling, resource references, and rapid compilation fixes. We specialize in untangling migration artifacts with minimal changes, ensuring the solution builds cleanly while leaving core business logic untouched. You will receive a fully compiling solution, fixed UI wiring for testing, and clear commit notes to reproduce the build elsewhere. Let us connect to review the project, clarify any dependencies, and finalize a rapid fix plan. The current bid amount is a placeholder to start the conversation. Regards Yasir LEADconcept PS: Let me know, if you want to see our team past work to determine our skills/expertise or past customer's references.
$1.150 USD em 7 dias
8,1
8,1

Hello I am Windows Desktop application developer with 25 years of experience I know both C# and VB6 very well and I have extensive experience with converting code from one programming language to another one Also, I have experience with Avalonia UI
$486 USD em 6 dias
8,2
8,2

With over 10 years of experience in web and mobile development, I understand the importance of getting your legacy VB6 programs migrated to C# with Avalonia UI working smoothly. I see that you are facing compilation errors that are hindering the build process. I can help you rectify this by focusing solely on the UI glue code, leaving the core business logic intact. In my extensive experience, I have successfully tackled similar challenges in fintech, healthcare, and eCommerce projects. I have a proven track record of delivering results in these domains, ensuring seamless functionality and user-friendly interfaces. I am confident in my ability to resolve the build errors in your project efficiently and effectively. Let's work together to get your app up and running smoothly on .NET with Avalonia. Reach out to me to discuss the details and take the next steps towards a successful project completion.
$1.400 USD em 30 dias
6,9
6,9

Having a strong background in .NET and C# programming, my team and I are well-equipped to tackle the challenges you're facing with your legacy VB6 programs. We understand the urgency of fixing the Avalonia UI build errors while keeping tabs on your codebase's business logic and architecture. Our experience working specifically with WPF, AVAlonia, Visual Basic, and Visual Studio would help expedite the process without compromising the functional integrity of your application. What sets us apart is our knack for untangling complex issues by focusing on minimal surface-area changes. Just as you mentioned, we understand that speed and precision are crucial at this point, so we'll prioritize getting a working solution compiles and runs utilizing Avalonia. We're adept at debugging and problem-solving necessitated by migration issues such as these. Moreover, we recognize the importance of concise documentation to recreate your build elsewhere. Our commitment extends beyond simply delivering a fixed solution; our team's attention to detail will be evident in the change log or commit notes we provide. Should you give us this opportunity, I assure you a focused and efficient engagement resulting in a stable compiled solution for user testing that meets your basic requirements.
$1.500 USD em 7 dias
6,6
6,6

Hello, I understand you have multiple legacy VB6 applications auto-migrated to C#, where the business logic is already intact, but the Avalonia UI code generated by the migration tool is now breaking the build. Your scope is intentionally tight: fix only build-blocking compilation errors, avoid touching architecture/MVVM/business logic, and get the app to build, run, open the UI, and allow basic input testing, especially on the Data Entry Forms. Here’s how I will accomplish this with minimal surface-area changes: 1. Pull the solution into Visual Studio / Rider, run a clean build, and categorize compile errors by XAML, code-behind, resources, and event wiring. 2. Fix Avalonia XAML namespaces, resource references, control names, bindings, and missing references that cause build failures—without refactoring any existing patterns. 3. Repair the code-behind wiring (event handlers, InitializeComponent, partial classes, named controls, resource dictionaries) so the Main Window and Data Entry Forms render and accept input. I appreciate how clearly you’ve defined the boundaries—no refactor, no cleanup, no redesign just fast, targeted fixes to unblock compilation and enable basic UI testing. If you share the repo (or a zipped solution) plus your Avalonia/.NET version targets, I can jump straight into resolving the build blockers. Regards, Muhammad Shoaib
$950,50 USD em 7 dias
6,6
6,6

Fix Avalonia Build Errors I’m a full-stack software engineer with expertise in React, Node.js, Python, and cloud architectures, delivering scalable web and mobile applications that are secure, performant, and visually refined. I also specialize in AI integrations, chatbots, and workflow automations using OpenAI, LangChain, Pinecone, n8n, and Zapier, helping businesses build intelligent, future-ready solutions. I focus on creating clean, maintainable code that bridges backend logic with elegant frontend experiences. I’d love to help bring your project to life with a solution that works beautifully and thinks smartly. To review my samples and achievements, please visit:https://www.freelancer.com/u/GameOfWords Let’s bring your vision to life—connect with me today, and I’ll deliver a solution that works flawlessly and exceeds expectations.
$880 USD em 7 dias
4,9
4,9

Hi, how are you doing? I can fix your migrated VB6-to-C# Avalonia project so it compiles and runs quickly. I’ll focus only on the broken UI glue—XAML, code-behind wiring, and Data Entry Forms—without touching the business logic or MVVM structure. After my changes, the solution will build, open the main window, and allow basic input for testing. I’ll also provide clear commit notes so the build can be reproduced on any machine. Best regards, Alesha
$10 USD em 7 dias
5,2
5,2

Hi, I am a .NET desktop developer with 8 years of experience working on migrated and legacy applications. I am familiar with C#, .NET, Avalonia UI, XAML, code-behind wiring, Visual Studio, build-time debugging, and resolving compilation issues in migrated projects. I have experience untangling Avalonia XAML and event bindings generated by migration tools, fixing UI glue code that blocks builds, and getting applications to compile and run with minimal surface-area changes so data entry forms render and accept input without altering existing business logic. I'm an individual freelancer and can work in any time zone you prefer. Please contact me with the best time for you to have a quick chat. Looking forward to discussing more details. Thanks. Emile.
$1.000 USD em 7 dias
4,7
4,7

⭐Hi, I’m ready to assist you right away!⭐ I believe I’d be a great fit for your project since I have extensive experience in software development and debugging in the .NET environment. My proficiency in C# programming and XAML makes me well-equipped to efficiently tackle the Avalonia build errors. I specialize in untangling complex UI wiring issues, ensuring the project compiles smoothly while leaving the core business logic and architecture intact. With a keen eye for detail, I'll focus on fixing the UI glue code to enable the app to build and run on .NET with Avalonia. This project will solve the critical issue of compilation errors at build time, providing a working solution that allows basic user testing, especially focusing on the Data Entry Forms. By delivering a compiling solution with fixed Avalonia components, I aim to streamline the UI rendering and input acceptance processes. If you have any questions, would like to discuss the project in more detail, or would like to know how I can help, we can schedule a meeting. Thank you. Maxim
$50 USD em 2 dias
4,4
4,4

Dear . Thanks for sharing your project! I’ve worked on similar projects before and have hands-on experience with tasks like yours. I’ve got a bunch of hands-on experience with Software Development, Software Testing, Visual Studio, .NET, WPF, Debugging, C# Programming, XAML and Visual Basic, so I’m comfortable handling everything you’re looking for. If you want to see my work quality, please feel free to check my reviews from previous clients. I can also show examples of previous projects and walk you through my workflow, including clear communication, clean execution, and a professional approach from start to finish. Feel free to message me anytime. I’d be happy to discuss your project and get started. Best Regards, Huy.
$980 USD em 1 dia
3,7
3,7

Hello, This is a well-defined, build-blocking problem—and exactly the kind of focused rescue work I’m comfortable taking on. I understand the goal is not refactoring, redesigning, or re-architecting anything. The task is strictly to get the Avalonia UI layer compiling and running on .NET, with minimal, targeted changes limited to the XAML and code-behind that the migration tool wired incorrectly. Business logic, structure, and any existing MVVM patterns will remain untouched. I have hands-on experience debugging Avalonia XAML compilation failures, broken resource references, event-handler mismatches, and code-behind wiring issues that typically appear after automated VB6 → C# migrations. I’ll work directly at build-error level, resolving only what is required to produce a clean build and a runnable application. Once the solution compiles, I’ll ensure: • The main window opens correctly • Data Entry Forms render • Basic input is accepted for initial user testing Unexpected runtime behavior outside of this scope will be left as-is, per your requirements. Deliverables • A compiling solution (Visual Studio or Rider) • Fixed Avalonia XAML / code-behind for the main window and data forms • Clear commit notes or a concise change log for reproducibility I can move quickly, keep the change surface small, and deliver a buildable solution without scope creep. Ready to start immediately.
$250 USD em 7 dias
3,5
3,5

With over a decade of hands-on experience in full stack .NET development, I am the ideal candidate for untangling your Avalonia build errors. My expertise encompasses not only C# and the backend essentials like ASP.NET Core and Web APIs, but also front-end technologies like Angular and TypeScript. I have had my fair share of dealing with UI related challenges – from wiring up XAML to managing event handlers which makes me adept at resolving issues obstructing your build process. Throughout my career, I have made it a priority to build secure, scalable, and high-performance applications aligning with modern software architecture principles. This extends to optimizing application performance and implementing efficient CI/CD pipelines on cloud platforms like Azure DevOps – inconspicuously important factors when it comes to debugging or building processes. I thoroughly understand the need for minimal surface-area changes specifically in legacy projects, ensuring that only the necessary tinkering is done. To add convenience post our work together, I will also provide a concise change log so you can reproduce the build hassle-free on any machine. Let's untangle these issues together!
$750 USD em 7 dias
3,4
3,4

Hello, Having spent over 6 years in the development industry, my expertise in .NET and C# programming is top-notch and exactly what you need for resolving those Avalonia build errors. I've successfully implemented complex automation solutions, seamlessly integrating APIs and streamlining workflows, skills that can be specifically harnessed to ensure your migrated VB6 programs run smoothly on .NET with Avalonia UI layer. With a priority placed on speed and minimal-surface area changes, my approach aligns perfectly with your project requirements. My commitment to producing clean, scalable and well-documented code also means you'll receive a consolidated change log detailing each fix I make for easy reproducibility. Moreover, my experience extends into providing long-term support and maintenance, so you can rely on me not just for fixing these build errors but also for ongoing management of the system to ensure smooth runtime functionality. And while basic user testing may include unexpected runtime behaviors, I promise not to stop until your application opens and accepts inputs seamlessly. Choose me for this project and you're guaranteed a quick turnaround without compromising on quality. Thanks!
$980 USD em 1 dia
2,7
2,7

Hello, I hope you are doing well. I’m a .NET developer with hands-on experience migrating VB6 apps to C# and stabilizing Avalonia UI layers. I focus on preserving business logic while fixing only the UI glue that Avalonia needs, so the core code remains untouched. In past projects I’ve untangled Avalonia XAML wiring, corrected resource references, and wired up the main window and Data Entry Forms to render and accept input using XAML and code-behind in Visual Studio or Rider. I don’t rely on external links or timelines, and I guarantee a targeted fix that yields a compiling solution. I can handle the work based on my expertise and past experiences, delivering a compile-ready UI surface and a concise changelog for reproducibility. Best regards, Billy Bryan
$980 USD em 1 dia
2,8
2,8

Hello Daniel R. I have extensive experience fixing broken UI bindings and migrating legacy WinForms/VB6 UIs to modern .NET front-ends, including hands-on Avalonia XAML repairs. I'll minimally edit only the Avalonia XAML and code-behind to resolve compilation errors, wire up the MainWindow and Data Entry Forms, and deliver a compiling solution that opens and accepts input on .NET. Why We Work Together: - Fast, low-risk fixes limited to UI glue only - Proven experience diagnosing Avalonia build/XAML errors - Deliver a reproducible build, solution files, and concise change log - Respect existing business logic and MVVM, no refactors Best Regards, Sherman
$880 USD em 7 dias
2,4
2,4

Hi, I’m very interested in helping you get your migrated VB6-to-C# Avalonia application compiling and running quickly. I’ve worked with legacy migrations and Avalonia UI, fixing XAML, code-behind wiring, and build-time errors without touching core logic. I will focus strictly on resolving compilation issues in the Avalonia UI glue code so the solution builds on .NET. I will ensure the main window and Data Entry Forms render correctly and accept basic user input. Business logic, architecture, and MVVM structure will remain completely untouched. You will receive a compiling solution plus a concise change log for reproducible builds. Best regards,
$880 USD em 7 dias
2,2
2,2

Hi, This is a typical “VB6 → C# migration + Avalonia glue” build-break, and it’s straightforward to fix without touching your business logic. and i have already finish complex c++ debugging so it happy to show you the proof or if you want then can see the clients review, thanks. I’ve taken multiple migrated UI layers (WinForms/WPF/Avalonia) from “won’t compile” to “boots and is testable” by correcting XAML/code-behind wiring, resource dictionaries, namespaces, and event handler signatures—surgically, with minimal surface-area changes. What I’ll do: Get the solution compiling by resolving Avalonia XAML namespaces, x:Class/partial class mismatches, and missing InitializeComponent wiring Fix resource/style references (merged dictionaries, theme includes, StaticResource keys) that commonly break multiple forms at once. Repair code-behind event hookups (handler signatures, control Name bindings) so Main Window + Data Entry Forms. render and accept input. Keep MVVM/business logic untouched; only adjust the generated UI glue that blocks the build. Provide a concise changelog/commit notes so you can reproduce the build on a clean machine. This is not a refactor job it’s a disciplined compile-and-run stabilization pass. Send the repo/solution + your current build error output (first 50–100 lines is enough), and I’ll start by getting the Main Window building and opening, then clear the remaining form-level errors. _Taofiq
$650 USD em 7 dias
1,5
1,5

Hi, there! With over 10 years of experience in C# Programming and Visual Basic, I have a solid background in handling complex migration projects like the one you've described. I understand the requirements of fixing the Avalonia build errors in your migrated VB6 programs and am confident in providing a professional solution that focuses solely on getting the project to build and run on .NET with Avalonia. Having completed 50+ Desktop/Mobile applications and Embedded software projects, I am well-equipped to tackle the UI glue code issues without altering the core business logic. I would love to discuss your project further and find the best approach to resolve the compilation errors. Let's connect in chat to delve deeper into the details. Thanks!
$920 USD em 7 dias
1,1
1,1

Hi, I understand your need for a quick and precise fix to get your migrated Avalonia UI project compiling and running without altering the core business logic. With solid experience in Avalonia XAML and .NET, I’ll focus exclusively on resolving the build-time compilation errors by fixing the UI glue code. I’ll ensure the main window and Data Entry Forms render correctly and accept inputs for basic testing, fulfilling your requirement for minimal changes and rapid delivery. I’ll provide a clean Visual Studio solution and clear commit notes to help you replicate the build elsewhere. I’m ready to start promptly and deliver within a few days. Are there specific compilation error messages or logs you can share that would help diagnose the Avalonia build issues more precisely? Thanks, Roshan
$980 USD em 1 dia
0,0
0,0

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