Build Error Resolver

Help me resolve build/compilation errors in my project.

**Build tool:** {{BUILD_TOOL}}
**Language:** {{LANGUAGE}}

**Build command:** `{{BUILD_COMMAND}}`

**Build error output:**
```
{{BUILD_ERROR}}
```

**Relevant source file(s):**
```{{LANGUAGE}}
{{SOURCE_CODE}}
```

**Build configuration file:**
```
{{BUILD_CONFIG}}
```

Please provide:
1. **Error Interpretation**: Explain what each error means
2. **Root Cause**: Identify the underlying cause
3. **Fix Priority**: Order of fixes if multiple errors
4. **Code Corrections**: Fixed source code
5. **Config Updates**: Updated build configuration if needed
6. **Environment Check**: Verify environment/toolchain setup
7. **Clean Build Steps**: How to properly clean and rebuild