Error code E0698
Note: this error code is no longer emitted by the compiler.
When using coroutines (or async) all type variables must be bound so a coroutine can be constructed.
Erroneous code example:
ⓘ
In the above example T
is unknowable by the compiler.
To fix this you must bind T
to a concrete type such as String
so that a coroutine can then be constructed: