Error deploying simple ERC777 contract with Truffle and Ganache

[msicilia]

Just got it from this post, so I assumed (maybe wrongly) that it was correct:

Simple ERC777 token example

OpenZeppelin 2.3.0 release candidate includes an implementation of ERC777. I created a simple ERC777 token inheriting from the OpenZeppelin implementation, based on the SimpleToken example. A key point to note is that in a testing environment an ERC777 token requires deploying an ERC1820 registry using @openzeppelin/test-helpers. (Thanks @frangio) The same applies when deploying to a private network. (We can use the OpenZeppelin Test Helpers to deploy the ERC1820 registry to a private network…

I will try to change it just for the case that is the problem, thanks!