Rails ActiveSupport::JSON 导致非法指令错误

Question

I'm trying to encode something in my rails project into JSON, but it seems like any call to any JSON API in Rails causes WEBrick to throw a "Illegal Instruction" error.

My code was:

@nodes = Node.all
j = ActiveSupport::JSON
@json = j.encode(@nodes)

I don't understand why I get this error. Can someone please help?

Not sure if this is relevant, but I'm also using mysql2spatial adapter because my Node class contains a field with type GEOMETRY (mysql spatial extensions).

Thanks!

Answer 1

The JSON gem requires compiled extensions, so it's possible that your version isn't compiled for the architecture or OS you're currently using. You may want to re-install it and see if that resolves the problem.

Ruby itself rarely throws exceptions, but compiled extensions do this much more frequently, especially if compiled against a different set of system libraries.