Error string should not be capitalized or end with punctuation

Reports format issues in error strings.

Example:

err := fmt.Errorf("Cannot read the file!")
log.Printf("Reading %s: %v", file, err)

According to Error Strings at github.com/golang, error strings should not be capitalized or end with punctuation because they might appear among other context.

To fix the format, you can apply the Fix error string format quick-fix. After the quick-fix is applied, the error string will look like this:

err := fmt.Errorf("cannot read the file")
log.Printf("Reading %s: %v", file, err)

Locating this inspection

By ID

Can be used to locate inspection in e.g. Qodana configuration files, where you can quickly enable or disable it, or adjust its settings.

GoErrorStringFormat

Via Settings dialog

Path to the inspection settings via IntelliJ Platform IDE Settings dialog, when you need to adjust inspection settings directly from your IDE.

Settings or Preferences | Editor | Inspections | Go | Code style issues

Inspection ID: GoErrorStringFormat

Suppressing Inspection

You can suppress this inspection by placing the following comment marker before the code fragment where you no longer want messages from this inspection to appear:

//noinspection GoErrorStringFormat

More detailed instructions as well as other ways and options that you have can be found in the product documentation:

GoLand 2025.2

Inspection Details
By default bundled with:	GoLand 2025.2, Qodana for Go 2025.2,
Can be installed with plugin:	Go, 252.26654.0

Last modified: 18 September 2025