About Configuring Google App Engine for PHP in NetBeans 8.0.2

I am using NetBeans 8.0.2.The operating system is Mac OS X 10.10.3.

To use the Google App Engine for PHP, under Services - Servers,
Step 1. Select a server...Google App Engine
but the following
Step 2. I don't know what to type in Server Location

/usr/local/google_appengine

or

/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/Google_appengine

Provide a valid Google App Engine Location

You cannot proceed to the next step without saying

Google App Engine for PHP is
https://cloud.google.com/appengine/downloads
Downloading 1.9.21 for your Mac from the .

The NetBeans plug-in is
https://code.google.com/p/nb-gaelyk-plugin/downloads/list
to

nbappengine-7.4.x-gae1.8.x-3.0.2.zip

Download and

 org-netbeans-modules-j2ee-appengine-deployment.nbm
org-netbeans-modules-j2ee-appengine-editor.nbm
org-netbeans-modules-j2ee-appengine-hints.nbm
org-netbeans-modules-j2ee-appengine-kit.nbm
org-netbeans-modules-j2ee-appengine-samples.nbm
org-netbeans-modules-j2ee-appengine.nbm

has already been installed.

By the way, GoogleAppEngineLauncher has been able to deploy without any problems.

Thank you for your cooperation.