TypeError: instance.INTERNAL.registerComponent is not a function

[siefix]

[REQUIRED] Step 2: Describe your environment

• Operating System version: _____
• Firebase SDK version: _____
• Firebase Product: admin
• Node.js version: _____
• NPM version: 6.13.3

Have tried with firebase-admin 8.8.0, 8.7.0, and 8.6.1 (the last 3 versions)
Running firebase-functions 3.3.0

[REQUIRED] Step 3: Describe the problem

Steps to reproduce:

I'm getting this error when I try to deploy Cloud Functions. firebase deploy --only functions:FUNCTIONNAME

Any idea what the problem is? Anyone else have this issue?

Error: Error occurred while parsing your function triggers.

TypeError: instance.INTERNAL.registerComponent is not a function
    at registerDatabase (/PATH/cloud-functions/functions/node_modules/firebase-admin/node_modules/@firebase/database/dist/index.node.cjs.js:15165:39)
    at Object.<anonymous> (/PATH/cloud-functions/functions/node_modules/firebase-admin/node_modules/@firebase/database/dist/index.node.cjs.js:15196:5)
    at Module._compile (internal/modules/cjs/loader.js:721:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:732:10)
    at Module.load (internal/modules/cjs/loader.js:620:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:560:12)
    at Function.Module._load (internal/modules/cjs/loader.js:552:3)
    at Module.require (internal/modules/cjs/loader.js:657:17)
    at require (internal/modules/cjs/helpers.js:22:18)
    at FirebaseNamespace.get [as database] (/PATH/cloud-functions/functions/node_modules/firebase-admin/lib/firebase-namespace.js:282:38)

[google-oss-bot]

I couldn't figure out how to label this issue, so I've labeled it for a human to triage. Hang tight.

[hiranya911]

Duplicate of #717, #714

[backspacerhino]

I followed the linked threads but no concrete solutions were provided.

@firebase/app should be updated in @firebase/app/package.json?

[D0561910]

it's work fo me. Thank alot

[LeoLetourneur]

More clearly
npm install @firebase/app --save
was the solution

[shaibt]

If it helps anyone see my comment here: #714 (comment)

@firebase/app should not be explicitly required on server side when firebase-admin is included but you have to be careful @firebase/app isn't somewhere in your node_modules folder hierarchy.

[darthwalsh]

It's possible that @firebase/app is expected to be in your node_modules, like if you're using @firebase/testing:

PS C:\code\> npm ls @firebase/app
myCode@1.0.0 C:\code
`-- @firebase/testing@0.16.4
  `-- firebase@7.6.1
    `-- @firebase/app@0.5.0

In my case, the fix was updating @firebase/testing from version 0.13 to 0.16.