TypeError: Cannot convert undefined or null to object

[jasmin92]

Hey, i have faced this issue with when i tried to fetch from firestore.
I followed all instructions from docs.

Firestore database contains just one collection "users" with one document in it.

error occurred on:

firestore: {
    users: db.collection('users')
},

However, if i try to fetch it manually, it'll be returned without errors

 async created() {
    let users = await db.collection('users').get();
    users.forEach(user => {
      console.log(user.data());
    })
  }

[stamler]

Same issue, specifically does not happen with @firebase/firestore 2.0 but DOES occur on @firebase/firestore 2.0.2

EDIT: no issues with @firebase/firestore 2.0.1 either, just 2.0.2. Current workaround is to pin version 2.0.1 in your package.json

[amandine-trl]

Hi,
I have the exact same issue using firebase 8.0.2.
Downgrading to firebase 8.0.1 solved the issue.
Thank you @stamler !

[posva]

#940

Make sure to search existing issues and not to ignore the template when opening issue, please! It's important for open source maintainers