These tools can assist you in troubleshooting design and development problems:
Refer to the Problems view to identify compilation errors in the Java source code of a JSP page.
Use the errors markers that appear on the vertical ruler of the source view in the Web Page editor to identify the cause and solution for an error. Move your mouse over the error marker to display the problem cause; double-click the error marker to display possible resolutions.
Review error logs to identify design and runtime errors.
Select Windows|Show View|Others from the menu bar, and then select PDE Runtime|Error Log from the list.
