[Error] invalid result arity: func type returns multiple values (at offset 47)

[ratnadeep007]

Trying out tutorial in docs rust tutorial.

When using wasm-bindgen and running:

wasmtime --invoke greet ./target/wasm32-wasi/release/hello_world.wasm "wasmtime CLI"

getting following error:

Error: failed to run main module `./target/wasm32-wasi/release/hello_world.wasm`

Caused by:
    invalid result arity: func type returns multiple values (at offset 47)

[alexcrichton]

Thanks for the report!

The support for interface types is pretty prototypical at this stage and is in a lot of flux. What you may need to do though is to pass --enable-multi-value, although even with that a lot of stars need to align to get everything working just right.

[alexcrichton]

I'm going to now that we've temporarily removed interface types support, but stay tuned to #677 for future updates!

[ratnadeep007]

Thanks for the update