.NET

NuGet, SDK, and build failures in CI - fixed.

Resolve .NET CI failures: NuGet restore errors, SDK version mismatches, build and MSBuild problems, and test failures. Practical fixes for dotnet pipelines.

NuGet restore

Feeds, auth, and version conflicts.

package source mapping no matchFix NuGet restore failures caused by package source mapping in CI - a package id that matches no

SDK & runtime

global.json, version mismatches, and targets.

"NETSDK1004: Assets file ... not found"Fix .NET "NETSDK1004: Assets file project.assets.json not found. "MSB3644: reference assemblies ... not found"Fix MSBuild "MSB3644: The reference assemblies for .NETFramework,Version=vX were not found" in CI - install

Build & test

MSBuild errors and test failures.

"dotnet publish" RID / self-contained errorFix "dotnet publish" failures for self-contained or runtime-specific ASP.NET Core apps in CI - a missing or "Unable to resolve service for type"Fix "System.InvalidOperationException: Unable to resolve service for type X while attempting to activate Y" "address already in use"Fix Kestrel "Failed to bind to address http://127.0.0.1:5000: address already in use" in CI - a previous test "Could not find a part of the path ..._framework"Fix the Blazor publish error "Could not find a part of the path ... "_framework/blazor.*.js" not foundFix the Blazor Server build/publish problem where the framework script under _framework is not produced in CI "CS0103: ... does not exist"Fix C# "CS0103: The name X does not exist in the current context" in CI - an undeclared variable, a "CS0234: ... does not exist in the namespace"Fix C# "CS0234: The type or namespace name X does not exist in the namespace Y (are you missing an assembly "CS1061: ... no accessible extension method"Fix C# "CS1061: T does not contain a definition for M and no accessible extension method M accepting T could "CS8600: Converting null literal ..."Fix C# "CS8600: Converting null literal or possible null value to non-nullable type" in CI - a "CS8602: possibly null reference"Fix C# "CS8602: Dereference of a possibly null reference" in CI - a nullable-reference warning promoted to an "NU5039: ... readme file does not exist"Fix dotnet pack "NU5039: The readme file does not exist" / "NU5046: The 'readme' element is not specified" in "MSB3027: could not copy ... locked"Fix MSBuild "MSB3027: Could not copy X to Y. Exceeded retry count. "MSB4018: ... task failed unexpectedly"Fix MSBuild "error MSB4018: The <task> task failed unexpectedly" in CI - a build task that threw an unhandled "MSB4057: ... target does not exist"Fix MSBuild "MSB4057: The target X does not exist in the project" in CI - a /t: target name that is not

Explore other topics

GitHub ActionsWorkflow, runner, and YAML errors - diagnosed and fixed. Node.js & npmnpm, yarn, and pnpm failures in CI - solved. DockerBuild, run, compose, and registry errors - explained. Pythonpip, poetry, venv, and pytest failures - fixed. Java & JVMMaven, Gradle, and JVM failures in CI - resolved. GoGo build, module, and test failures - diagnosed.