[Bug] Unable to build backend

[vnepogodin]

Describe the bug
The backend Cargo.toml doesn't build.

To Reproduce
Steps to reproduce the behavior:

1. git clone https://github.com/AppFlowy-IO/appflowy.git
2. cd backend
3. cargo build --release
4. See error

Expected behavior
The backend should be built.

Additional context

• Environment [e.g. flutter doctor -v or rustup show]

❯ rustup show
Default host: x86_64-unknown-linux-gnu
rustup home:  /home/vl/.rustup

installed toolchains
--------------------

nightly-2021-04-24-x86_64-unknown-linux-gnu
nightly-x86_64-unknown-linux-gnu (default)

active toolchain
----------------

nightly-x86_64-unknown-linux-gnu (default)
rustc 1.58.0-nightly (2885c4748 2021-11-20)

[ghost]

Can you post the error output?

[vnepogodin]

Yeah sure

[vnepogodin]

warning: `lib-sqlite` (lib) generated 1 warning
   Compiling backend v0.1.0 (/home/vl/appflowy/backend)
error[E0437]: type `Config` is not a member of trait `FromRequest`
  --> src/entities/token.rs:83:5
   |
83 |     type Config = ();
   |     ^^^^^^^^^^^^^^^^^ not a member of trait `FromRequest`

error[E0437]: type `Config` is not a member of trait `FromRequest`
  --> src/service/user/logged_user.rs:44:5
   |
44 |     type Config = ();
   |     ^^^^^^^^^^^^^^^^^ not a member of trait `FromRequest`

For more information about this error, try `rustc --explain E0437`.
error: could not compile `backend` due to 2 previous errors

[appflowy]

These errors are caused by the beta version of actix-web has been updated. I will update the cargo.toml file to fix this.