.NET MAUI – One or more invalid file names were detected.
This content has 1 year. Some of the information in this post may be out of date or no longer work. Please, read this page keeping its age in your mind.Developers working on .NET MAUI projects may encounter a perplexing error during the build process, revealing invalid file names that must adhere to specific rules. The Solution To resolve this issue, developers need to identify and correct the problematic file names. On macOS, the hidden file .DS_Store is a common culprit causing this error. Here’s a step-by-step guide to resolving the issue: For macOS If the Finder app does not show any files, try opening a terminal, navigate to the resources folder of your project, and type ls -la to see the files. It should display the invalid files. Remove them accordingly. For Windows
.NET MAUI Android Error: Type androidx.collection.ArrayMapKit is defined multiple times
This content has 1 year. Some of the information in this post may be out of date or no longer work. Please, read this page keeping its age in your mind.One common challenge is AndroidX dependency conflicts. In this blog post, we’ll guide you through resolving compilation errors related to AndroidX in .NET MAUI. Before we proceed, let’s take a look at the error message that may have troubled you: In my case the meaning of this error message is: Type androidx.collection.ArrayMapKt is defined multiple times Examine Dependencies and Manually Delete bin and obj Folders: Start by inspecting your project’s dependencies. Ensure that you have the same versions of .NET MAUI packages and other libraries. Dependency mismatches can often lead to compilation errors. Sometimes, cleaning your project isn’t enough. To ensure a fresh build, you might need to manually delete the bin and obj folders. You can find these folders in your project directory. They contain build artifacts and removing them helps clear cached data. Verify NuGet Packages: Review your NuGet packages. Look out for multiple versions of the same library, as this can lead to conflicts. If you find any conflicting packages, remove the outdated or conflicting versions. You may need to edit your project’s .csproj file to resolve these package issues. Additionally, if you’ve recently installed a new NuGet package with has an Android dependency, make sure you have the correct version. A different version might introduce incompatibilities with the already installed pacakages.
.NET MAUI: iOS ListView disappearing cells
This content has 1 year. Some of the information in this post may be out of date or no longer work. Please, read this page keeping its age in your mind.In this article, we will delve into a persistent .NET MAUI issue affecting ListViews on the iOS platform in .NET 7 builds. While the .NET 8 preview has addressed this issue, developers seeking a solution can employ the BindableLayout as a temporary workaround. We’ll also explore the concept of BindableLayout and touch on the CachingStrategy within ListViews. The Problem: Disappearing Cells in ListViews on iOS The issue at hand revolves around the behavior of ListViews on the iOS platform in .NET 7 builds. As users scroll through the list elements, the ListView cells mysteriously disappear, causing a jarring experience. While the .NET 8 preview has resolved this vexing problem, the official release is still pending, leaving developers seeking immediate solutions. The Workaround: BindableLayout within ScrollView A viable workaround to mitigate the disappearing cell issue involves utilizing the BindableLayout within a ScrollView. The BindableLayout.ItemSource property can be harnessed to mimic the ListView’s behavior. However, it’s crucial to acknowledge that this solution might not deliver the same performance as a native ListView. Example Code Here’s how you can implement the BindableLayout workaround: BindableLayout: A Glimpse BindableLayout is a versatile feature within the .NET MAUI framework that allows developers to easily bind collections to layout controls. It’s an excellent alternative when dealing with scenarios where a native ListView isn’t performing optimally or in…
.NET MAUI: Label issue, Overflowing Texts in StackLayouts
This content has 1 year. Some of the information in this post may be out of date or no longer work. Please, read this page keeping its age in your mind.In this blog post, we will explore a known issue affecting the Label UserControl in .NET MAUI when used within a StackLayout. We will explain how this problem manifests and the temporary solution proposed by the Microsoft team. The Issue The problem arises when using the Label UserControl inside a StackLayout UserControl. Despite setting the parent UserControl’s width and height, the Label does not respect these dimensions and overflows its content. This can lead to visual glitches and unintended behavior in the application’s user interface. Reproducing the Issue To replicate the issue, follow these steps: For example The Proposed Solution While the Microsoft team is actively working on addressing this issue, a temporary solution is available to mitigate the problem. By setting the IsClippedToBounds parameter of the StackLayout to true, we can prevent the Label from overflowing its parent’s boundaries. What does IsClippedToBounds do? IsClippedToBounds is a property of the StackLayout that determines whether its children should be clipped to fit within the bounds of the parent container. When this property is set to true, any content that extends beyond the StackLayout’s boundaries will be clipped and hidden, ensuring that it does not visually overflow the container. A tiny disadvantage While setting the IsClippedToBounds property can help mitigate the issue of overflowing content in a StackLayout, it comes with its…
Hi, I am András,
I am a seasoned software engineer from Budapest, Hungary with a strong focus on mobile app development using .NET MAUI and Xamarin.Forms. My expertise also extends to website building for my happy customers and other complex system designing. I am passionate about developing well-organized, maintainable software solutions.
