The issue indicates that there may not be a legitimate entry point in the playfab-web-sdk package.JSON.

1. Running "npm list playfab-web-sdk" or "cat node_modules/playfab-web-sdk/package.json" will allow you to verify this.

If "main" or "module" are absent or misspelled, the package may not be set up correctly for direct import.

2. Employ a Direct Import Path (Short-Term Solution) Try importing the module using a relative path as the package might not expose a correct module entry:

import * as PlayFab from "./node_modules/playfab-web-sdk/PlayFabClientApi";