WARNING: unsupported ABI type - error

[6str]

I have a problem with my contract abi and attempting to use it with ethers using either src="https://cdn.ethers.io/scripts/ethers-v4.min.js"
src="https://cdnjs.cloudflare.com/ajax/libs/ethers/5.1.2/ethers.umd.min.js"

using version 4 I get the error:
WARNING: unsupported ABI type - error

using version 5.1.2
ethers.umd.min.js:1 Uncaught Error: invalid fragment object (argument="value", value={"inputs":[],"name":"InvalidNullifier","type":"error"}, code=INVALID_ARGUMENT, version=abi/5.1.0)
which is a bit more informative

if I remove the section

{
    "inputs": [],
    "name": "InvalidNullifier",
    "type": "error"
},

the code moves past where it would throw the error.

I'm compiling the contract with

├── ethers@5.7.0
├── hardhat@2.11.1

I tried a clean and compile, compiling the contract(s) in remix and taking the abi from there, but get the same result. The abi consistently comes out this way.

I'm thinking it's a bug/omission in the ethers.js not being able to handle this bit of abi, but I guess it could be duff abi? Whole abi attached

thoughts?

abi.txt

[ricmoo]

Can you update to a later version of ethers? 5.7 is the latest version.

[6str]

well, this is embarrassing. I could swear that I tested with that version too, (before the 5.1.2) but I was in a bit of a spin in the end and I guess I messed up the methodology.

Panic over. All appears well with 5.7
Thanks for getting me to revisit that version!