Compile error

[mehrdaddolatkhah]

when I want to run this project i got this error :

rocket-diesel-rest-api-example git:(master) cargo build --release && cd target/release/
   Compiling pear_codegen v0.0.14
   Compiling hyper v0.10.13
   Compiling serde_derive_internals v0.23.0
   Compiling diesel v1.1.1
   Compiling rayon v0.7.1
error[E0432]: unresolved import `syntax::ast::SpannedIdent`
  --> /home/mehrdad/.cargo/registry/src/github.com-1ecc6299db9ec823/pear_codegen-0.0.14/src/lib.rs:27:56
   |
27 | use syntax::ast::{ItemKind, MetaItem, FnDecl, PatKind, SpannedIdent};
   |                                                        ^^^^^^^^^^^^ no `SpannedIdent` in `ast`

error[E0609]: no field `identifier` on type `syntax::ast::PathSegment`
   --> /home/mehrdad/.cargo/registry/src/github.com-1ecc6299db9ec823/pear_codegen-0.0.14/src/lib.rs:131:59
    |
131 |             let penultimate = path.segments[num_segs - 2].identifier.name.as_str();
    |                                                           ^^^^^^^^^^ unknown field
    |
    = note: available fields are: `ident`, `parameters`

error[E0609]: no field `identifier` on type `syntax::ast::PathSegment`
   --> /home/mehrdad/.cargo/registry/src/github.com-1ecc6299db9ec823/pear_codegen-0.0.14/src/lib.rs:138:48
    |
138 |         let last = path.segments[num_segs - 1].identifier.name.as_str();
    |                                                ^^^^^^^^^^ unknown field
    |
    = note: available fields are: `ident`, `parameters`

error[E0609]: no field `identifier` on type `syntax::ast::PathSegment`
   --> /home/mehrdad/.cargo/registry/src/github.com-1ecc6299db9ec823/pear_codegen-0.0.14/src/lib.rs:147:40
    |
147 |     let first_ident = path.segments[0].identifier.name.as_str();
    |                                        ^^^^^^^^^^ unknown field
    |
    = note: available fields are: `ident`, `parameters`

error[E0599]: no variant named `TupField` found for type `syntax::ast::ExprKind` in the current scope
   --> /home/mehrdad/.cargo/registry/src/github.com-1ecc6299db9ec823/pear_codegen-0.0.14/src/lib.rs:340:9
    |
340 |         ExprKind::TupField(indexed_expr, i) => {
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ variant not found in `syntax::ast::ExprKind`

error[E0599]: no variant named `TupField` found for type `syntax::ast::ExprKind` in the current scope
   --> /home/mehrdad/.cargo/registry/src/github.com-1ecc6299db9ec823/pear_codegen-0.0.14/src/lib.rs:341:51
    |
341 |             let remake = |new_expr: Vec<P<Expr>>| ExprKind::TupField(new_expr[0].clone(), i);
    |                                                   ^^^^^^^^^^^^^^^^^^ variant not found in `syntax::ast::ExprKind`

error: aborting due to 6 previous errors

Some errors occurred: E0432, E0599, E0609.
For more information about an error, try `rustc --explain E0432`.
error: Could not compile `pear_codegen`.
warning: build failed, waiting for other jobs to finish...
error: build failed

may please help me to fix it ?!

[Linesmerrill]

Yeah same issue as @mehrdaddolatkhah.

Here are my rust versions:

rustc --version
rustc 1.32.0-nightly (0c999ed13 2018-12-03)

cargo --version
cargo 1.32.0-nightly (b3d0b2e54 2018-11-15)

rustup --version
rustup 1.15.0 (f0a3d9a84 2018-11-27)

Any ideas @sean3z?

[JeroenKnoops]

I've really liked the article and I want to use it as base for a service I want to build.

I started to update the crates to the latest versions and tagged the project once the tutorial was converted. I've got it all working. Maybe you can look into 'my project' to see what I had to change.

See: https://gitlab.com/JeroenKnoops/bob-api/tree/0.0.1-hero

Versions used:

rustc --version
rustc 1.37.0-nightly (5f3656ce9 2019-06-11)

cargo --version
cargo 1.37.0-nightly (545f35425 2019-05-23)

rustup --version
rustup 1.18.3 (435397f48 2019-05-22)