This is probably caused by some JS module export/import issues in your program, typically for one of the two reasons listed below:
- You forget to export, or you export something incorrectly
- You import something that doesn’t exist, or you import something incorrectly
I ran into similar error, but in my case, it is not caused by export but caused by import, and I used the import statement incorrectly to import something that doesn’t exist in the module.
In my case, the import was incorrectly written as:
import { MyComponent } from './MyComponents/MyComponent'
while actually it should be:
import MyComponent from './MyComponents/MyComponent'
And it drove me crazy and took me a whole day to figure it out and I hope this will save several hours for some people.