updating v2 to v3. getting error: shared-ini-file-loader/dist-cjs/loadSharedConfigFiles. reading undefined (then)

[Dahlak76]

the code base has been using v2 with no issues and during migration to v3 (manual as well as using 'codemod') i keep getting the same error. the only changes have been in the package update and necessary syntax/logic changes. The error seems to change from one file to another and the only constant is that its reading 'undefined' (reading then)

/shared/node_modules/@aws-sdk/shared-ini-file-loader/dist-cjs/loadSharedConfigFiles.js:16
            .then(parseIni_1.parseIni)
            ^
TypeError: Cannot read properties of undefined (reading 'then')

i have checked my AWS config and credentials files and am able to access all AWS services as expected.
I'm using env variables and aws/credentials. im trying to wrap my head around how/why the credentials would be an issue. considering everything works as expected with v2 but with the most minimal changes this error keeps coming up, I also want to add that the error comes up in different files with each testing attempt. im running a new branch from a working state where I only made the following changes to the shared/models/aws/aws.js file that gets shared throughout the code base-

****package.json-

  "dependencies": {
       "@aws-sdk/client-ec2": "^3.332.0",
       "@aws-sdk/client-marketplace-metering": "^3.332.0",
       "@aws-sdk/client-rds": "^3.332.0",
       "@aws-sdk/client-s3": "^3.332.0",
       "@aws-sdk/client-sts": "^3.332.0",

****the old v2 aws.js code-

import AWS from 'aws-sdk';

const s3 = new AWS.S3({ proxy: process.env.HTTP_PROXY });
const sts = new AWS.STS();
const ec2 = new AWS.EC2();
const rds = new AWS.RDS();
const metering = new AWS.MarketplaceMetering();
const getStateCode = status => {
    if (typeof status === "object") {
        if (status.Name) {
            status = status.Name
        } else {
            status = 'UNKNOWN';
        }
    }
    switch (status.toLowerCase()) {
        case 'running':
            return 16;
        case 'stopping':
            return 64;
        case 'terminated':
            return 48;
        case 'suspending':
            return 64;
        case 'suspended':
            return 80;
        default:
            return 0;
    }
};

export { ec2, rds, metering, s3, sts, getStateCode };

****the updated v3 aws.js-

import { STSClient } from ‘@aws-sdk/client-sts’;
import { EC2Client } from ‘@aws-sdk/client-ec2’;
import { RDSClient } from ‘@aws-sdk/client-rds’;
import { S3Client } from ‘@aws-sdk/client-s3’;
import { MarketplaceMeteringClient } from ‘@aws-sdk/client-marketplace-metering’;

const sts = new STSClient();
const s3 = new S3Client();
const ec2 = new EC2Client();
const rds = new RDSClient();
const metering = new MarketplaceMeteringClient();

const getStateCode = status => {
    if (typeof status === ‘object’) {
        if (status.Name) {
            status = status.Name;
        } else {
            status = ‘UNKNOWN’;
        }
    }
    switch (status.toLowerCase()) {
        case ‘running’:
            return 16;
        case ‘stopping’:
            return 64;
        case ‘terminated’:
            return 48;
        case ‘suspending’:
            return 64;
        case ‘suspended’:
            return 80;
        default:
            return 0;
    }
};

export { ec2, rds, metering, s3, sts, getStateCode };

[abu450]

Hi, someone, please help ... I have the same issue