HOW-TO-READ-ERRORS.md

How to read errors

This file describes common errors and how to fix them.

The trait bound ... when resolve dependency by hand

Error looks like this:

error[E0277]: the trait bound ...  
--> folder\file.rs:24:44
   |
24 |     let service: SERVICE = provider.resolve();
   |                                     ^^^^^^^ the trait `teloc::Resolver<'_, _, SERVICE, ...   
   |
   ...

It means that the provider cannot resolve that SERVICE. Possible reasons are:

1. You do not register this dependency in ServiceProvider.
2. If you register the Service, then check by which lifetime:
   • If it is registered using Transient lifetime (add_transient method), then it can be resolved only by ownership, so check that it is not resolved by reference.
   • If it is registered using Singleton lifetime (add_singleton method), then it can be resolved by clone in cases when Service implement DependencyClone, so if you want to resolve it by clone, check that it implements DependencyClone. It is implemented by default for Rc, Arc and &T. Otherwise it can be resolved only by reference.
3. Check that you register all dependencies for the SERVICE by steps 1-2.