No such file or directory - mrbc

[nburns]

Tried building a ruby script and got the following error:

ruby-wasm build /Users/nburns/notion/app/models/date_generator/schedule_date_generator.rb
/usr/local/lib/ruby/gems/2.3.0/gems/wasm-0.0.2/bin/ruby-wasm:40:in ``': No such file or directory - mrbc (Errno::ENOENT)
	from /usr/local/lib/ruby/gems/2.3.0/gems/wasm-0.0.2/bin/ruby-wasm:40:in `build'
	from /usr/local/lib/ruby/gems/2.3.0/gems/wasm-0.0.2/bin/ruby-wasm:136:in `<top (required)>'
	from /usr/local/lib/ruby/gems/2.3.0/bin/ruby-wasm:24:in `load'
	from /usr/local/lib/ruby/gems/2.3.0/bin/ruby-wasm:24:in `<main>'

Ruby version: ruby 2.3.7p456 (2018-03-28 revision 63024) [x86_64-darwin17]
OS: macOS 10.13.6 (17G65)

Do I need to install something else as a part of ruby-wasm?

[sbsoftware]

You need to have mruby installed and available in your PATH. In his blog post corresponding to this repo, Tom recommends using this command: brew install mruby. After that, the mrbc command should be present globally in your system.

[sasharevzin]

After installing mruby got another error:

/Users/sashar/sites/ruby-wasm/bin/ruby-wasm:49:in ``': No such file or directory - emcc (Errno::ENOENT)
	from /Users/sashar/sites/ruby-wasm/bin/ruby-wasm:49:in `build'
	from /Users/sashar/sites/ruby-wasm/bin/ruby-wasm:137:in `<top (required)>'
	from /Users/sashar/.rvm/gems/ruby-2.3.5/bin/ruby-wasm:23:in `load'
	from /Users/sashar/.rvm/gems/ruby-2.3.5/bin/ruby-wasm:23:in `<main>'
	from /Users/sashar/.rvm/gems/ruby-2.3.5/bin/ruby_executable_hooks:15:in `eval'
	from /Users/sashar/.rvm/gems/ruby-2.3.5/bin/ruby_executable_hooks:15:in `<main>'

[sbsoftware]

As stated in the README, you need to have the emscripten toolchain installed and activated, as the ruby-wasm command only works by using its compiler. See http://webassembly.org/getting-started/developers-guide for information about installing the emcc command.

[NorseGaud]

@sasharevzin

$ git clone https://github.com/juj/emsdk.git
$ cd emsdk
$ ./emsdk install latest
$ ./emsdk activate latest

then add alias wasm_init="source ~/Developer/emsdk/emsdk_env.sh" to your bash profile so you can run wasm_init when you get that error.