Top-level await is not available in the configured target environment ("es2015" + 2 overrides)

Top-level await is a feature that allows you to use the `await` keyword at the top level of your code, outside of an `async` function. However, it is not available in all JavaScript environments. The error message you're seeing indicates that your current target environment does not support top-level await.

To resolve this issue, you have a few options:

1. Use a different target environment: You can configure your environment to target a version of JavaScript that supports top-level await, such as "es2017" or later. This depends on your build tool or environment configuration.

2. Wrap your code in an async function: If you can't change the target environment, you can wrap your code in an immediately invoked async function expression (IIFE) to use top-level await. Here's an example:

(async () => {
  // Your code here
  await someAsyncTask();
})();

3. Use a bundler or transpiler: If you're using a bundler like Webpack or a transpiler like Babel, you can configure it to transform your code to a version of JavaScript that supports top-level await. This way, you can write code with top-level await and have it automatically transformed for the target environment.

Remember to choose an option that fits your project's requirements and constraints.