go compile_error ai_generated true

too many arguments in call to fmt.Sprintf

ID: go/too-many-arguments

Also available as: JSON · Markdown · 中文
95%Fix Rate
85%Confidence
1Evidence
2023-04-12First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
go1.21 active — — —
go1.22 active — — —
go1.23 active — — —

Root Cause

The number of arguments passed to a variadic function like fmt.Sprintf exceeds the number of format verbs in the format string.

generic

中文

传递给像 fmt.Sprintf 这样的可变参数函数的参数数量超过了格式字符串中的格式动词数量。

Official Documentation

https://pkg.go.dev/fmt

Workarounds

  1. 95% success Match the number of format verbs (%s, %d, etc.) to the number of arguments. Add or remove verbs as needed. 
    Match the number of format verbs (%s, %d, etc.) to the number of arguments. Add or remove verbs as needed.
  2. 80% success Use a single %v verb with a struct or map to capture multiple values if the exact format is flexible. 
    Use a single %v verb with a struct or map to capture multiple values if the exact format is flexible.

中文步骤

  1. Match the number of format verbs (%s, %d, etc.) to the number of arguments. Add or remove verbs as needed.
  2. Use a single %v verb with a struct or map to capture multiple values if the exact format is flexible.

Dead Ends

Common approaches that don't work:

  1. Removing all arguments except the format string. 90% fail

    The format string likely contains verbs that need arguments; removing them will cause a different compile error about missing arguments.

  2. Adding a newline to the format string. 95% fail

    Newlines do not consume arguments; the mismatch persists.