Incorrect type argument count

Reports references to generic types with the incorrect number of type arguments. Usage of a generic type without passing the correct number of type arguments is an error.

A quick fix is available to correct the number of type arguments passed.

Example:

class Example[A]
end

# Too many type arguments provided
type example = Example[untyped, untyped]

After the quick fix:

class Example[A]
end

type example = Example[untyped]

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.

RbsIncorrectTypeArgumentCount

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 | RBS | Probable bugs

Inspection ID: RbsIncorrectTypeArgumentCount

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 RbsIncorrectTypeArgumentCount

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

RubyMine 2025.2

Inspection Details
By default bundled with:	Qodana for Ruby 2025.2, RubyMine 2025.2,

Last modified: 18 September 2025