}

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golang go type error type conversion interface

Fix 'cannot use X (type Y) as type Z' in Go — Type Mismatch Guide

Fix 'cannot use X (type Y) as type Z' in Go. Covers explicit conversions, interface satisfaction, pointer vs value receivers, and type assertions with the ok pattern.

Error Index Page 1

golang go error compile variables blank identifier

Fix 'declared and not used' Error in Go (2026)

Fix Go's 'declared and not used' compile error. Learn why Go enforces this, how to use the blank identifier _, and common cases like loop variables and error returns.

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golang go error compile main package

Fix: "function main is undeclared in the main package" in Go

Fix the Go error "runtime.main_main·f: function main is undeclared in the main package". Covers all 5 causes with code examples and step-by-step solutions.

Error Index Page 1

golang go error compile import goimports

Fix 'imported and not used' Error in Go (2026)

Fix Go's 'imported and not used' compile error. Remove the import, use blank import for side effects, or use goimports for automatic management.

Error Index Page 1

golang go error nil pointer panic runtime

Fix 'nil pointer dereference' Panic in Go (2026)

Fix Go's 'nil pointer dereference' runtime panic. Covers nil pointers, nil interfaces, nil maps, uninitialized structs, stack trace reading, and nil-safe patterns.

Error Index Page 1

golang go error compile undefined import

Fix 'undefined: functionName' Error in Go (2026)

Fix the Go 'undefined: functionName' compile error. Covers wrong package, unexported names, typos, missing imports, and circular imports with before/after code.

Error Index Page 1

SAP error ABAP configuration MM FI SD

SAP Error Message 00058: Entry Does Not Exist — All Scenarios and Fixes

Fix SAP Message 00058 'Entry does not exist in table'. Covers all scenarios: T005E, SKB1, T685, T007A, SECCODE, ABAP ALV. Step-by-step solutions for each table.