`wasm-only` not present in config.Config

[nargetdev]

I'm trying to invoke the WASM generator, but failing.

...
server:
  mode: wasm_only # wasm_only, server (if wasm language not defined, will generate a pure golang server)

The result I get:

unable to parse config: yaml: unmarshal errors:
  line 21: field wasm not found in type config.Config
  line 25: field mode not found in type struct { Standalone bool "yaml:\"standalone\"" }exit status 1