the trait bound serde_json::Error: ResponseError is not satisfied

[shanliu]

error[E0277]: the trait bound `serde_json::Error: ResponseError` is not satisfied
   --> C:\Users\PC\.cargo\registry\src\github.com-1ecc6299db9ec823\actix-session-0.5.0-beta.1\src/lib.rs:151:44
    |
151 |             Ok(Some(serde_json::from_str(s)?))
    |                                            ^ the trait `ResponseError` is not implemented for `serde_json::Error`
    |
    = note: required because of the requirements on the impl of `From<serde_json::Error>` for `actix_web::Error`
    = note: required by `std::convert::From::from`

Your Environment

OS Name: Microsoft Windows 10
OS Version: 10.0.19042 N/A Build 19042

• Rust Version (I.e, output of rustc -V):
  rustc 1.53.0-nightly (7f4afdf02 2021-04-22)
  actix-web = "~4.0.0-beta.6"
  actix-session = "0.5.0-beta.1"

[miraclx]

Since actix-http 4.0.0-beta.6 (actix/actix-web#2148), ResponseError is no longer impl for serde_json::Error

You can go ahead to map and wrap that Error:

+ use actix_web::error::JsonPayloadError;
+
- Ok(Some(serde_json::from_str(s)?))
+ Ok(Some(serde_json::from_str(s).map_err(JsonPayloadError::Deserialize)?))

Also see: Cargo.toml's [patch] section

[shanliu]

Since actix-http 4.0.0-beta.6 (actix/actix-web#2148), ResponseError is no longer impl for serde_json::Error

You can go ahead to map and wrap that Error:

+ use actix_web::error::JsonPayloadError;
+
- Ok(Some(serde_json::from_str(s)?))
+ Ok(Some(serde_json::from_str(s).map_err(JsonPayloadError::Deserialize)?))

Also see: Cargo.toml's [patch] section

actix-session crate error..

[miraclx]

Mind including the error?

[JohnTitor]

Please refrain from using offensive words.
Note that it's a beta version and syncing the actix-* crates are hard to maintain (in particular, it's on the actix-extras repo).

[nalpr]

you should stick to
actix-service = "=2.0.0-beta.5"
actix-web = "=4.0.0-beta.5"
a bit longer and wait for new versions.