Build fails due to missing dependency in @aws-amplify/pubsub

Describe the bug We’re using @aws-amplify/api-graphql, @aws-amplify/auth, @aws-amplify/core and @aws-amplify/storage in our react app. All of the todays builds in our CI/CD fails due to an unresolved dependency in the @aws-amplify/pubsub package.

To Reproduce Steps to reproduce the behavior:

1. create a new react app
2. add these dependencies:
   @aws-amplify/api-graphql @aws-amplify/auth @aws-amplify/core @aws-amplify/storage
3. import API from “@aws-amplify/api-graphql” in App.js;
4. npm start or npm run build
5. See error Failed to compile. ./node_modules/@aws-amplify/pubsub/lib-esm/Providers/AWSAppSyncRealTimeProvider.js Module not found: Can't resolve 'isomorphic-ws' in '/node_modules/@aws-amplify/pubsub/lib-esm/Providers'

Expected behavior The app builds and/or runs

Screenshots

[ericclemmons]

This is fixed!

diff --git a/package.json b/package.json
index b5cb308..d4bb804 100644
--- a/package.json
+++ b/package.json
@@ -3,6 +3,10 @@
   "version": "0.1.0",
   "private": true,
   "dependencies": {
+    "@aws-amplify/api-graphql": "^1.2.1",
+    "@aws-amplify/auth": "^3.4.1",
+    "@aws-amplify/core": "^3.5.1",
+    "@aws-amplify/storage": "^3.3.1",
     "@testing-library/jest-dom": "^4.2.4",
     "@testing-library/react": "^9.3.2",
     "@testing-library/user-event": "^7.1.2",
diff --git a/src/App.js b/src/App.js
index ce9cbd2..2bbd2b1 100644
--- a/src/App.js
+++ b/src/App.js
@@ -1,3 +1,4 @@
+import API from '@aws-amplify/api-graphql';
 import React from 'react';
 import logo from './logo.svg';
 import './App.css';

yarn run v1.22.4
$ react-scripts build
Creating an optimized production build...
Compiled with warnings.

./src/App.js
  Line 1:8:  'API' is defined but never used  no-unused-vars

Search for the keywords to learn more about each warning.
To ignore, add // eslint-disable-next-line to the line before.

File sizes after gzip:

  39.38 KB  build/static/js/2.fd671573.chunk.js
  770 B     build/static/js/runtime-main.efc9bf3d.js
  644 B     build/static/js/main.5b88f605.chunk.js
  547 B     build/static/css/main.5f361e03.chunk.css

[ericclemmons]

Confirmed fixed on unstable:

diff --git a/package.json b/package.json
index b5cb308..3f9a6b9 100644
--- a/package.json
+++ b/package.json
@@ -3,6 +3,10 @@
   "version": "0.1.0",
   "private": true,
   "dependencies": {
+    "@aws-amplify/api-graphql": "^1.2.1-unstable.2",
+    "@aws-amplify/auth": "^3.4.1-unstable.2",
+    "@aws-amplify/core": "^3.5.1-unstable.2",
+    "@aws-amplify/storage": "^3.3.1-unstable.2",
     "@testing-library/jest-dom": "^4.2.4",
     "@testing-library/react": "^9.3.2",
     "@testing-library/user-event": "^7.1.2",
diff --git a/src/App.js b/src/App.js
index ce9cbd2..2bbd2b1 100644
--- a/src/App.js
+++ b/src/App.js
@@ -1,3 +1,4 @@
+import API from '@aws-amplify/api-graphql';
 import React from 'react';
 import logo from './logo.svg';
 import './App.css';

❯ yarn build
yarn run v1.22.4
$ react-scripts build
Creating an optimized production build...
Compiled with warnings.

./src/App.js
  Line 1:8:  'API' is defined but never used  no-unused-vars

Search for the keywords to learn more about each warning.
To ignore, add // eslint-disable-next-line to the line before.

File sizes after gzip:

  39.38 KB  build/static/js/2.fd671573.chunk.js
  770 B     build/static/js/runtime-main.efc9bf3d.js
  644 B     build/static/js/main.5b88f605.chunk.js
  547 B     build/static/css/main.5f361e03.chunk.css

We’ll get this out soon!