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  2. Rust
  3. Wrong number of type or const parameters

Wrong number of type or const parameters

Last modified: Last modified: 18 September 2025

Checks if an attempted implementation of a trait method or an associated type has the right number of type or const parameters.

Corresponds to the E0049 Rust error.

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.

RsWrongGenericParametersNumber
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 | Rust

Inspection ID: RsWrongGenericParametersNumber

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:

note

Actual comment syntax will depend on the code language you are working with

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

    Inspection Details

    By default bundled with:

    Can be installed with plugin:

    Rust, 252.26665.0