Can't start google web app in eclipse, Security restrictions will not be completely emulated

Question

When I try to run the auto generated code in my google web app project using GAE I get the following error:

Mar 19, 2014 5:21:28 PM com.google.appengine.tool         


        

Answer 1

iQue,

I encountered exactly the same problem, and I discovered that my eclipse was using JRE 8 (version 1.8). I didn't intend this, and when I changed it to 1.7, this solved the problem.

Edit: Window -> Preferences -> Java -> Installed JREs. Checked jre7 to make it default.

Relevant note: The App Engine installation instructions say to use 1.7 (but don't say you can't use 1.8): https://developers.google.com/appengine/docs/java/gettingstarted/installing

Answer 2

In my case in addition to what is mentioned in Kevin answer, I also had to modify the value of java to 1.7 in run configurations.

Answer 3

Have you checked to see if App Engine SDK is present on your project?

If not, go to Window -> Preferences -> Google -> App Engine and add it.