GAE SDK 1.9.4 breaks GPE 3.5.1

GAE SDK 1.9.4 breaks GPE 3.5.1

When i tried to generate the client library using eclipse interface i got this erro:

eclipse.buildId=M20120914-1800 java.version=1.7.0_25
  java.vendor=Oracle Corporation BootLoader constants: OS=macosx,
  ARCH=x86_64, WS=cocoa, NL=pt_BR Framework arguments:  -product
  org.eclipse.epp.package.dsl.product -keyring
  /Users/renanfranca/.eclipse_keyring -showlocation Command-line
  arguments:  -os macosx -ws cocoa -arch x86_64 -product
  org.eclipse.epp.package.dsl.product -keyring
  /Users/renanfranca/.eclipse_keyring -showlocation Error Thu May 01
  19:39:22 BRT 2014 Unexpected Exception
  java.lang.reflect.InvocationTargetException   at$
  Caused by: java.lang.ClassNotFoundException:$Language   at$    at$    at Method)    at    at
  java.lang.ClassLoader.loadClass(     at
  java.lang.ClassLoader.loadClass(     at
    ... 1 more

I tried the command line at the root of the project: 

$SDK/ get-client-lib my.package.MyEndpointsApi

And its only generated the endpoints client libs, but not the folder:


When i got back to appengine 1.9.3 it's work like a charm again..
Anyone know how to solve this?


Answer 1:

In line with Romin, I also think that the AppEngine SDK 1.9.4 breaks GPE 3.5.1. I had the same problem when I updated to SDK 1.9.4 a few days ago. I rolled back to 1.9.3, and the endpoints are generated successfully. I reported GPE issue no. 278.

Answer 2:

For those who need manual installation instructions of GAE SDK 1.9.3 on Eclipse

I had the same issue and found this download link to the GAE SDK 1.9.3

How to manually install GAE SDK 1.9.3 in eclipse?
Since I am very new to Android, I took some time to learn to manually install an eclipse plugin. Please read Konstantin’s answer how-to-install-plugin-for-eclipse-from-zip

Answer 3:

I used this link to obtain the 1.9.3 sdk:

other then that, yeah, just add via the Configure SDK properties

Answer 4:

For those how hasn’t the SDK 1.9.3 as me, is possibile to install this SDK following the next steps:

  1. Download the SDK from here:

  2. Unzip in the folder Eclipse/plugins/

  3. Reboot Eclipse and go to Properties -> Google -> App Engine

  4. Click on Configure SDKs

  5. Click on Add

  6. Browse to the folder where you unziped the plugin and click Ok.

  7. Choose now the new SDK 1.9.3. That’s all 😉

Answer 5:

My experience was exactly the same: I couldnt generate Cloud EndPoint Libraries and the datastore didn´t work via Android.

If you want to downgrade your Google App Engine SDK after you updated it, seek into your Eclipse installation folder and look for the old SDK in plugings folder.

Afterwards you can import these old SDK to your projects from “Project Properties” and “Google/App Engine”, “Configure SDK”, “Add”. There, you must fin the path I talked about.

Now you can chose both SDK.

I tried with 1.9.3 and it worked again.

Edited: Finally this soulution didn´t work, so I downgrade to my last stable version of Google App Engine SDK, the 1.9.2. This one worked for me.

Answer 6:

I received this email today..

Status: Fixed
Labels: Release-3.6.0

Comment #7 on issue 278 by GPE 3.5.1 incompatible
with GAE SDK 1.9.4 – Endpoint generation fails

I hope a GPE update will come son (I CAN’T WAIT)

I gave up from Eclipse
I’m using AndroidStudio now and it’s generate the libraries automatically:

Start AndroidStudio from this awesome post Series: