...osit_value) };
// TEMPORARY The events system is being overhauled and this will be replaced by something
// more principled in the future
emit_event(&mut move(payee_account_ref).received_events_count, b"72656365697665645F6576656E74735F636F756E74", move(received_event));
...
...前仅在 `nightly` 上支持，
Substrate uses WebAssembly (Wasm), and you will need to configure your Rust compiler to use `nightly` to support this build target.
```bash
rustup update nightly
rustup target add wasm32-unknown-unknown --toolchain nightly
```
**配置 cargo 源**
...