TROUBLESHOOTING.md

Troubleshooting

Problem:

I'm getting compilation errors caused by the tree-shaking of lodash.

Possible Fix:

Follow these steps:

1. Update your tsconfig.json to have allowSyntheticDefaultImports: true property in compilerOptions. This property allows users to import CommonJS modules as default imports.
   • If you have compilation error like TypeError: find_1.default is not a function when running tests you might need to add esModuleInterop: true to your compilerOptions. Or you can try Solution #2 from this article.
2. After updates in tsconfig.json change imports of lodash to such way in all files:

   import forEach from “lodash/forEach”;

Additional articles about tsconfig compilerOptions:

• https://blogs.msdn.microsoft.com/typescript/2018/01/31/announcing-typescript-2-7/
• https://www.typescriptlang.org/docs/handbook/compiler-options.html