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You tried to provide a generic argument to a type which doesn't need it.
Erroneous code example:
```compile_fail,E0109
type X = u32<i32>; // error: type arguments are not allowed for this type
type Y = bool<'static>; // error: lifetime parameters are not allowed on
// this type
```
Check that you used the correct argument and that the definition is correct.
Example:
```
type X = u32; // ok!
type Y = bool; // ok!
```
Note that generic arguments for enum variant constructors go after the variant,
not after the enum. For example, you would write `Option::None::<u32>`,
rather than `Option::<u32>::None`.
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