Error : Informatica Debugger: Invalid session can not be debugged .Select a valid session instance to use
Problem : You are trying to run your mapping in debug mode by selecting valid session but you are getting below error even though your session is valid.
Solution :
1) Copy your mapping Suppose M1 as M1_Debug
2) Make your session as reusable
3) Making your Initial Mapping M1 as invalid by someway
4) Now refresh your session it will ask for new mapping then select M1_debug
5) Revalidate your session
6) Try to run your mapping(M1_debug) using second option use existing reusable instance for mapping
Now you should be able to run your mapping in debugger mode
Though it not a 100% correct method but it worked in my case but it is worth trying
Error : CMN_1892 Error: Data for Lookup [] fetched from the file [] is not sorted on the condition ports
Though it not a 100% correct method but it worked in my case but it is worth trying
Please not both of these issues we encountered on Informatica 7.1.1