How to use candid-extractor?

Developers
,
1

I was following this Automatic Candid Generation in Rust: Exploring the ic_cdk v0.10.0 Update

So,
I ran cargo install candid-extractor in my main terminal ? then I cd to my canister then I ran cargo build then sh script/did.sh
But I got this error

Error: failed to find function export `get_candid_pointer`

Any help please?
My sh file

#!/usr/bin/env bash


function generate_did() {
  local canister=$1
  canister_root="src/$canister"

  cargo build --manifest-path="$canister_root/Cargo.toml" \
      --target wasm32-unknown-unknown \
      --release --package "$canister"

  candid-extractor "target/wasm32-unknown-unknown/release/$canister.wasm" > "$canister_root/$canister.did"
}

CANISTERS=user_canister

for canister in $(echo $CANISTERS | sed "s/,/ /g")
do
    generate_did "$canister"
done

here is a photo of my project tree

Screenshot 2023-11-18 at 4.57.17 AM
Screenshot 2023-11-18 at 4.57.17 AM524×1058 45.9 KB

Also, it is intersting that echo $canister_root/$canister shows user_canister/user_canister
I also added

ic_cdk_macros::export_candid!();

at the end of the file user_canister/lib.rs

2

solved by adding all the struct to lib.rs and make them public also somthing like

use user::*;
use files::*;
use files_content::*;
use contracts::*;
use friends::*;
use share_files::*;
use std::collections::HashMap;
use queries::*;
use updates::*;
use ic_websocket_cdk::*;
use websocket::*;