cli-build-app installation failed

**Summary of enhancement or bug**
dojo create app --name myapp
Failed to load module /root/devs/test/test/node_modules/@dojo/cli-build-app
Nested error:
Package subpath './lib/stringify' is not defined by "exports" in /root/devs/test/test/node_modules/postcss/package.json

Package Version: postcss
dojo.io release 8

**Code**
no specific code

**Expected behavior:**
Build the application and run it

**Actual behavior:**
application not built