Overview

This skill provides standardized build execution and error parsing for .NET projects. Use it to verify code compiles and identify build errors.

When to Use

•After making code changes
•Before running tests
•Before committing changes
•Diagnosing compilation errors

Commands

Build Entire Solution

bash

dotnet build

Build Specific Project

bash

dotnet build <path/to/Project.csproj>

Build with Detailed Output

bash

dotnet build --verbosity detailed

Clean Build

When incremental build has issues:

bash

dotnet clean
dotnet build

Release Build

bash

dotnet build --configuration Release

Output Parsing

Success Pattern

code

Build succeeded.
    0 Warning(s)
    0 Error(s)

Error Pattern

code

error CS1002: ; expected
   path/to/File.cs(42,15): error CS1002: ; expected

Error format: <file>(<line>,<column>): error <code>: <message>

Warning Pattern

code

warning CS0168: The variable 'x' is declared but never used
   path/to/File.cs(35,12): warning CS0168: ...

Structured Result Format

After building, report results in this format:

Success

code

## Build Result: ✅ Success

- **Configuration:** Debug
- **Warnings:** <N>
- **Errors:** 0

### Warnings (if any)
| File | Line | Warning |
|------|------|---------|
| `<file>` | <line> | <message> |

Failure

code

## Build Result: ❌ Failed

- **Configuration:** Debug
- **Warnings:** <N>
- **Errors:** <N>

### Errors
| File | Line | Error |
|------|------|-------|
| `<file>` | <line> | `<code>`: <message> |

### Fix Suggestions
- <Error 1>: <Suggested fix>
- <Error 2>: <Suggested fix>

Common Error Codes

Code	Meaning	Common Fix
CS0103	Name does not exist	Missing using statement or typo
CS0246	Type not found	Missing reference or using statement
CS1002	; expected	Missing semicolon
CS1061	Member not found	Method doesn't exist on type
CS0029	Cannot convert type	Type mismatch, need cast or fix
CS0117	Type does not contain definition	Wrong method name or missing method
CS0535	Interface not implemented	Add missing interface members

Restore Dependencies

If build fails due to missing packages:

bash

dotnet restore
dotnet build

Rules

•Always build before running tests
•Fix all errors before proceeding (warnings can be deferred)
•Report exact error locations for quick fixes
•Use clean build if incremental build behaves unexpectedly