Add the following to your eslint, just to have the correct rule in there. And yes you can also turn it off, but the error is there for e reason.
"import/no-extraneous-dependencies": ["error", {"devDependencies": false, "optionalDependencies": false, "peerDependencies": false}]
As far as I can tell, there is no issue with your package.json, so it has to be a syntax problem.
I don’t have your code so I will show the examples:
var _ = require('lodash');
import _ from 'lodash';
If you have the above code (or something like it)
Then change it to:
import test from 'ava';
import find from 'lodash.find';
You can read more here:
https://github.com/benmosher/eslint-plugin-import/blob/master/docs/rules/no-extraneous-dependencies.md