The WebSphere Portal Test Environment will not run properly if you are editing the Portal configuration. This issue might happen when you already run some porltes with a portal configuration and after that created new portlet and added to the portal page and then try to run in Test Environment. Some times it will say failed to publish. Here is a workaroudn to fix this issue
For publishing failed cases
1. In J2EE perspective Open Enterprise applications and then delete the wps ear.
2. Do not select remove referenced project - select only the first option.
3. Select also delete file content option.
Now for some cases even if publication failed, the server will open without any issues but the browser will display page cannot be displayed error. Do following fix for this issue.
1. Stop the server if not already stopped
2. right click on the Test Environment from server view
3. Click on add/remove menu
4. Remove all project from the server
5. Close
6. Clean all projects
7. Now run your portal application.
