using
gdata-contacts-3.0.jar,
google-api-services-drive-v2-rev43-1.12.0-beta.jar,
guava-13.0.1.jar
Google Drive works but not Google Contacts. (i tried all kinds of solutions but never got both working together on Google App Engine where as it works in local devmode.)
calling: ContactsService gservice = new ContactsService("...");
Caused by: java.lang.NoSuchMethodError:
com.google.common.collect.ImmutableSet.copyOf([Ljava/lang/Object;)Lcom/google/common/collect/ImmutableSet;
at
com.google.gdata.wireformats.AltFormat$Builder.setAcceptableTypes(AltFormat.java:399)
at
com.google.gdata.wireformats.AltFormat$Builder.setAcceptableXmlTypes(AltFormat.java:387)
at com.google.gdata.wireformats.AltFormat.(AltFormat.java:49)
at com.google.gdata.client.Service.(Service.java:558)
I had the same issue in my project, but it was solved when I used gdata 1.47.1. It can be found at http://code.google.com/p/gdata-java-client/downloads/detail?name=gdata-samples.java-1.47.1.zip
As I am using Maven, I uploaded it to my Nexus. Added dependency in pom.xml and it was started working.
One more thing to notice, I am using guava 13.0. If it helps you.
OK now it works. Nobody was able to see that i used to
Add Google APIs from the Eclipse Plugin.
This does not only just add new jars that do not work in combination but also leaves all those old ones in a subfolder in my project ".google_apis...". Somehow those made it to Google App Engine and the odyssey started.
After removing those ... everything works fine. So again and, as everywhere mentioned, i was using a mixed guava version bulk which human nature does not expect to being activated.
Related
As an experiment I attempted do deploy my "regular" (=vanilla create-application) grails-app to google app-engine.
Even though I have removed my repo locally, re-cloned to different folders etc I still get this message when I do a clean, or run-app or anything for that matter.
No Google AppEngine SDK specified. Either set APPENGINE_HOME in your environment or specify google.appengine.sdk in your grails-app/conf/BuildConfig.groovy file
Any ideas how to solve this?
I may have spoken too soon, I changed my app.name in application.properties and that solved it, I can't verify it but I guessing ivy-related (just a guess)
Is there any problems using Google Cloud Endpoints with custom domain?
I was using it for some weeks then, after a deploy it stopped to work. I look here and I found this question that says it is not allowed yet.
But it was working for me on http://www.customdomain.com/_ah/api/app-id/v1...
If you're using App Engine's built-in support for custom domains as outlined here, it's not expected to work. You can follow this feature request to keep up-to-date on the feature's progress.
Now,Google CloudEndpoints 2.0 support it
Migrating to version 2.0:
Update your dependency to use the new artifact. In Maven, this looks
something like below:
com.google.endpoints endpoints-framework 2.0.0-beta.8
Remove the legacy dependency, which is the appengine-endpoints artifact.
Update the API entry point in your project web.xml file:
Rename all occurrences of SystemServiceServlet to EndpointsServlet.
Replace all occurences of the path /_ah/spi/* to the new required path /_ah/api/*
See:
https://cloud.google.com/appengine/docs/java/endpoints/migrating
https://code.google.com/p/googleappengine/issues/detail?id=9384
I'm getting some strange issues with google app engine serving old versions of files. I have included some logging in one of my servlets and deployed to google app engine several times over the last 24 hours. However, instead of seeing the logging i added, I'm seeing logs from a previous version of the file every time the servlet runs.
I've tried changing versions and redeploying but this doesnt seem to fix the problem.
I'm using Eclipse Juno with the app engine plugin if that makes a difference.
Any ideas what I can try or what I might be doing wrong?
I had a similar problem recently, and that I fixed by logging into appengine.google.com>MyAppIdentifier>(Main)>Versions and selecting the current version as the default.
This should not only serve your latest version, but also use the latest version for log viewing and other administrative tasks.
In the logs, make sure that you're checking the correct version:
Otherwise redeploy to a brand new version and check that version explicitly directly from the version url that can be found under the Versions section.
Make sure that before redeploying your APP after making changes you Remove Launch and Remove All Terminated launches by pressing the double cross buttons next to the "clear console" buttons on the console window in Eclipse...I hope this solve your problem.
December 2020 Answer
Not sure if this is an account or billing specific setting, but I found that App Engine started not updating to my latest app deploy once I reached 50 Versions in my App Engine list.
After deleting a bunch of old versions (taking down to 30) on next deploy it picked up my latest changes immediately.
It could be due to caching issue. Try reloading the website by adding a query parameter . Eg <website-url>?q=1 and see if changes are reflected
Open the url -> latest-version-number-dot-website-url . Latest version number can be obtained by clicking on version menu item on the side bar as seen below
If you have app.yaml file in your source code. Try removing headers related to caching and deploy and check to confirm its a caching issue. Caching headers could be of below form
Cache-Control: public, max-age=604800, immutable
Also make sure your project compiles correctly and doesn't contain any errors. I had this problem basically because I was deploying old compiled code, while it gave me an error "you have errors in your project, are you sure you want to deploy?"
I tried all the suggestions on SO, but ultimately, I found the best fix.
Because I transferred domain names and web hosting, I neglected to change my Domain's Resource Records. After making sure my code worked properly with the application (appname.appspot.com), I created a Custom Domain found in Console menu > App Engine > Settings > Custom domains
After you add the custom domain, make sure you change your Domain setting's CNAME www alias to the prescribed value (for me it was ghs.googlehosted.com).
Since changing that CNAME value, all of my subsequent deploys updated immediately. Hope this works for you and all others. Happy coding!
The gcloud (at list in python) has problem with line 'skip_files' in app.yaml,
So you can try the old method of deploying app with app engine,
use appcfg.py instead of gcloud.
see how in https://cloud.google.com/appengine/docs/standard/python/tools/uploadinganapp
In my Google App Engine project, I'm currently using Twig for accessing the Datastore (but I suspect my question would be relevant for other 3rd party libs like SimpleDS, Objectify, etc.).
I was thinking that I should be able to delete some or all of the following JARs from my WEB-INF/lib folder:
datanucleus-appengine-[...].jar
datanucleus-core-[...].jar
datanucleus-jpa-[...].jar
geronimo-jpa_[...].jar
geronimo-jta_[...].jar
jdo2-api-[...].jar
But when I do, I get errors from Eclipse complaining that "The App Engine SDK JAR is missing in the WEB-INF/lib directory".
Is it really necessary to retain all these (unused) JARs?
If you're using the Google Plugin for Eclipse you can delete these JARs and then open the Properties for your Google Web Application project and open the Google > App Engine and then uncheck the Use datanucleus JDO/JPA to access the datastore. In fact, unchecking this box actually deletes these JARs for you.
I don't think you can delete them from the project (as you have said, eclipse starts to complain), but I've heard you don't have to upload them to your app, as long as you upload from the command line. This has the advantage that at startup your app won't have to load them up.
There are some details of uploading to app engine via the command line here and confirmation that you can do this here
If you manage to do this I would appreciate it it if you post links to the instructions you followed or post what you needed to do, as I have this on my todo list as well, but only got as far as seeing if it was possible. Thanks!
Sorry in advance for the long post but the problem I am facing here is quite crucial for me, so here we go...
I have a Eclipse GWT (2.0) Web Application using the the GAE and making transactions with its datastore.
On the other hand I would like to make sure that I can also deploy this web application on another infrastructure than the Google App Engine. Therefore I wanted to debug my web app using another servlet container (Tomcat 6) and another datastore (mySQL or MSSQL or any other, it doesn't really matter for now.)
In order to be able to debug an Eclipse web app with Tomcat it has to carry the Dynamic Web Project facet. If it doesn't then the new server that I add to Eclipse within Servers refuses to pick my GWT module in its list of supported apps. And not only GWT Web Apps don't carry it, but they don't even allow to alter the project's facets at all!
However, I found that adding the few relevant tags to the .project file can make it eligible within Eclipse to allow new project facets additions. Here are the tags I used:
<nature>org.eclipse.jdt.core.javanature</nature>
<nature>com.google.gwt.eclipse.core.gwtNature</nature>
<nature>org.eclipse.wst.common.project.facet.core.nature</nature>
<nature>org.eclipse.wst.common.modulecore.ModuleCoreNature</nature>
<nature>org.eclipse.jem.workbench.JavaEMFNature</nature>
<nature>org.eclipse.wst.jsdt.core.jsNature</nature>
<nature>com.google.appengine.eclipse.core.gaeNature</nature>
So I did that, I could "turn" the project into an Eclipse's Dynamic Web Project and by doing so made it compliant to be added to the list of modules handled by - let's say - Tomcat 6 within Servers.
So that is exactly what I wanted, I can now switch between two debug configurations at will in Eclipse in order to debug my GWT web app either on the App Engine or on Tomcat.
The problem is that adding the Dynamic Web Project facet disturbs the DataNucleus enhancer. For some reason, once the project has become a Dynamic Web Project, it seems that the enhancer is never called anymore and I get this error message saying that some classes haven't been enhanced. Playing with the Google... App Engine... ORM classes or checking/unchecking the Enhancer in Builders wouldn't change anything. Please note that the enhancer issue affects both debug configurations: Tomcat as well as the App Engine.
So I was thinking of two solutions.
(1) Disable the Google plugin's DataNucleus enhancer and perform the enhancements myself. So I installed the DataNucleus plugin to configure project specific enhancements by following their guide about the Eclipse plugin.
They say that by right-clicking on the project one can activate DataNucleus support for the given project's files. Unfortunately, after installing the latest version of their plugin for Eclipse, no such right-click menu appears! I have therefore no way to tell their plugin that I want to activate the enhancements on a given project! How frustrating is that?? (I uninstalled/reinstalled the plugin, let perform plenty of pending Eclipse updates... but still no right-click menu.)
Does anyone know of another way to activate DataNucleus enhancement? For now I would be happy even with a pretty manual trick as it is very critical for me to be able to perform this cross-servlet container debugging within Eclipse.
(2) Use this tip from the official GWT website http://code.google.com/webtoolkit/doc/latest/FAQ_DebuggingAndCompiling.html#How_do_I_use_my_own_server_in_hosted_mode_instead_of_GWT%27s
Ok that works, and for now let's say that it saves my life BUT... it requires hosted mode and therefore doesn't allow the use of GWT 2.0.
So regarding this workaround I would like to know if there is a way to do something similar under GWT 2.0?
Turning the GWT Web App into a Eclipse Dynamic Web Project would be the ideal solution for pursuing the development of my application. As I said above, that way, it is very convenient to switch from the App Engine to Tomcat and vice versa. So I favour workaround (1) over workaround (2). But anyway, some help or piece of advice regarding any of the two points will be very very welcome.
Thank you for reading this very long post!
I always use Google Plugin (GPE) for GWT development even when I deploy to Tomcat, where I simply disable GAE option.
Perhaps, I don't understand the question - but I have had no problems debugging my app running on jetty and then transferring the app to Tomcat. Are there any issues that I need to learn?
In fact, even when my app is plain jsp or servlets, without any GWT, I still used GPE. But GPE would refuse to run jetty without either GWT or GAE enabled. So I simply create a dummy GWT app. In all my years, I had never had to worry about differences between jetty and tomcat. And if I had to write an app where I had to exploit the differences in tomcat over jetty, I would consider myself a lousy programmer.
The only reason I see to push JEE server into an external server, is for profiling the app as it runs on tomcat.
JEE is JEE, whether Tomcat or Jetty. I have heard that some people have a bias against using Jetty, like preferring starbucks over neighbourhood cafe. Coffee is coffee.
I don't understand. May be you could write another thesis to explain why you cannot debug on jetty and then deploy on tomcat.
I ran into the exact same problem, I could edit the properties of my project and see the datanucleus menu in the context so the plugin was definitely working. My issue was I was using the "Java EE" perspective in eclipse. (Juno btw). I switched to the "Java" context and my datanucleus menu was back and I was able to enable support and enable automatic enhancement.
Window -> Show perspective -> Other -> Java