Start Debugging

Tag: errors

127 posts · Page 4 of 13

2026-08-12 errors aspnetcore dotnet

Fix: The 'interceptors' feature is not enabled in this namespace

CS9137 comes from the Microsoft.AspNetCore.OpenApi source generator. Add InterceptorsNamespaces to every project that calls AddOpenApi, not just the one holding the PackageReference.

2026-08-11 errors aspnetcore dotnet

Fix: The type or namespace name 'OpenApiReference' could not be found

OpenApiReference was deleted in Microsoft.OpenApi 2.0. Changing the using to Microsoft.OpenApi is not enough: replace each usage with a typed reference such as OpenApiSchemaReference.

2026-08-06 errors blazor aspnetcore

Fix: Attempting to reconnect to the server after a Blazor Server circuit disconnects

The reconnect modal means the SignalR circuit dropped, not that your app crashed. Decide whether the retry ended in failed or rejected, then fix sticky sessions, the 3-minute retention window, the 32 KB message limit, or persist circuit state with [PersistentState].

2026-08-06 errors flutter android

Fix: flutter doctor reports cmdline-tools component is missing

Install the Android SDK Command-line Tools so the binaries land in <sdk>/cmdline-tools/latest/bin, point ANDROID_HOME at the SDK root, then re-run flutter doctor.

2026-08-05 errors csharp dotnet

Fix: AggregateException "One or more errors occurred" when awaiting Task.WhenAll in C#

await Task.WhenAll rethrows only one of the failures. Keep the WhenAll task in a variable and read its Exception.InnerExceptions to see every error instead of one.

2026-08-05 errors csharp csharp-14

Fix: CS1998 "This async method lacks 'await' operators and will run synchronously" in C#

CS1998 means an async method has no await, so it runs synchronously. Drop the async modifier and return Task.FromResult, or add the await you forgot.

2026-08-05 errors dotnet dotnet-11

Fix: HTTP Error 500.30 - ASP.NET Core app failed to start after deploying to IIS

500.30 means your app threw during startup inside w3wp.exe. The real exception is already in the Windows Application event log under IIS AspNetCore Module V2. Read that first, then rank the fix: missing shared framework, x86/x64 app pool mismatch, missing config, or app pool permissions.

2026-08-04 errors flutter dart

Fix: No Material widget found in Flutter

Wrap the subtree in Material(type: MaterialType.transparency) or put the screen in a Scaffold. MaterialApp alone does not provide a Material ancestor, which is why TextField and InkWell assert.

2026-08-03 errors claude-code ai-agents

Fix: "Write(src/**) is not matched by file permission checks" in Claude Code

Claude Code only consults Edit(path) and Read(path) rules. A Write(src/**) allow or deny rule is accepted and then silently ignored. Use Edit() instead.

2026-08-01 errors flutter dart

Fix: A RenderFlex overflowed by N pixels on the bottom when the keyboard opens in Flutter

The keyboard shrinks your Scaffold body's max height, so a Column that just fit now overflows. Wrap the body in a scrollable instead of turning resizeToAvoidBottomInset off.