Type 'symbol' cannot be used as an index type

[lomby92]

I have a TypeScript project where package.json has "typescript": "^2.7.2" dependence.
After release 2.9 of TypeScript i have an error on compile:

Type 'symbol' cannot be used as an index type.
143 query.where[sequelize.Op.and].push({ userId: req.query.userId });

Is this an error of Sequelize?

Dialect: postgres
Dialect version: ???
Database version: 9.6
Sequelize version: 4.37.10

[Carrotzpc]

There are two issues of typeScript may help you:

microsoft/TypeScript#24587
microsoft/TypeScript#1863

I downgraded the version of typeScript to 2.8.

[stale]

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