Can't Set App Engine SDK - Eclipse Plugin

[sdoca]

Hi,

I have been trying to set up a Maven/GWT/Eclipse project and keep
running into road blocks. I have Eclipse 3.6 (Helios) with m2eclipse
and GWT plugins installed. I was trying with Eclipse 3.5 (Galileo)
but thought I may have messed up some config thing and figured I'd
start clean and upgrade to Helios. I get the same issue in both.

I have been trying to use this blog as a guide for setting up my
project:

http://googlewebtoolkit.blogspot.com/2010/08/how-to-use-google-plugin-for-eclipse.html

I have a project set up in the standard Maven directory structure. I
created a new Eclipse project and used this as the existing source
(deleted .project, .classpath and .settings that were created in
Galileo). I then ran the mvn clean gae:unpack war:war and mvn
eclipse:clean eclipse:eclipse as per the blog.

When I go into the project properties and try to set the Google App
Engine to "Use default SDK (App Engine - 1.3.7)" and save, it doesn't
stick. I go back in and it's still set at "Use specific SDK" which is
set to "{userHome}\.m2\repository\com\google\appengine - unknown
version". If I choose "App Engine - 1.3.7" from the list and save, it
still reverts to the local repo "unkown version".

When I check my Java Build Path, all the jars from the local repo are
listed. I can delete them and save, but again, it doesn't stick.

I tried running the project to see what happens, and I get:

Exception in thread "main" java.lang.ExceptionInInitializerError
at
com.google.appengine.tools.info.SdkImplInfo.<clinit>(SdkImplInfo.java:
19)
at
com.google.appengine.tools.util.Logging.initializeLogging(Logging.java:
36)
at
com.google.appengine.tools.development.gwt.AppEngineLauncher.start(AppEngineLauncher.java:
72)
at com.google.gwt.dev.DevMode.doStartUpServer(DevMode.java:421)
at com.google.gwt.dev.DevModeBase.startUp(DevModeBase.java:1035)
at com.google.gwt.dev.DevModeBase.run(DevModeBase.java:783)
at com.google.gwt.dev.DevMode.main(DevMode.java:275)
Caused by: java.lang.RuntimeException: Unable to discover the Google
App Engine SDK root. This code should be loaded from the SDK
directory, but was instead loaded from file:{userHome}/.m2/repository/
com/google/appengine/appengine-tools-sdk/1.3.7/appengine-tools-
sdk-1.3.7.jar. Specify -Dappengine.sdk.root to override the SDK
location.
at com.google.appengine.tools.info.SdkInfo.findSdkRoot(SdkInfo.java:
106)
at com.google.appengine.tools.info.SdkInfo.<clinit>(SdkInfo.java:24)
... 7 more

What gives??

[-Erno]

I had same problem, but this way I get it.
You have to add app engine sdk (properties->java build path-
>libraries)
then remember make sure that all maven jars are at bottom in "order
and export" tab.

I hope this helps.

On Sep 8, 2:56 am, sdoca <sd...@shaw.ca> wrote:
> Hi,
>
> I have been trying to set up a Maven/GWT/Eclipse project and keep
> running into road blocks.  I have Eclipse 3.6 (Helios) with m2eclipse
> and GWT plugins installed.  I was trying with Eclipse 3.5 (Galileo)
> but thought I may have messed up some config thing and figured I'd
> start clean and upgrade to Helios.  I get the same issue in both.
>
> I have been trying to use this blog as a guide for setting up my
> project:
>

> http://googlewebtoolkit.blogspot.com/2010/08/how-to-use-google-plugin...

[James Nelson]

ZOMG...  4 years later, and this is still the right fix!!

then remember make sure that all maven jars are at bottom in "order
and export" tab.

This was BEYOND frustrating (just lost over a day on this),

and all it took was putting maven on the bottom.

Sigh,

thank you so much.