Incompatibility between subxt_signer and subxt

Question

https://github.com/paritytech/subxt/blob/master/subxt/examples/tx_basic.rs

I want to call a function in my substrate pallet. I am using the

• substrate-node-template
• subxt
• subxt_signer

use subxt::{OnlineClient, PolkadotConfig};
use subxt_signer::sr25519::dev;

#[subxt::subxt(runtime_metadata_path = "./src/artifacts/metadata.scale")]
pub mod polkadot {}
{
   // ...

   let account = dev::alice();
   let call = polkadot::tx().template_module().do_something(32);
   api.tx()
      .sign_and_submit_then_watch_default(&call, &account)
      .await
      .unwrap();
      
  // ...
}

but sign_and_submit_then_watch_default is giving error for &account. This is the error that I get

the trait bound `subxt_signer::sr25519::Keypair: subxt::tx::Signer<PolkadotConfig>` is not satisfied
the trait `subxt::tx::Signer<PolkadotConfig>` is not implemented for `subxt_signer::sr25519::Keypair`

I have tried using sp_core and changing versions but nothing seems to work.

My current versions are:

subxt = "0.31.0"
subxt-signer = "0.31.0"

Answer 1

I found the solution to the problem. In my case, I needed to make changes to Cargo.toml.

subxt-signer = { version = "0.31.0", features = ["subxt"]}

I had to add features = ["subxt"] to make it work.