Database Connection Error: "Testing Database Connection” java.lang.NullPointerException at index 3

amberavhamberavh Member Posts: 3 Contributor I
edited November 2018 in Help

I keep getting the following error:

  • Error executing background job, “Testing Database Connection” java.lang.NullPointerException at index 3 

I am running RapidMiner Studio 7.4.000

Can someone please help me fix this issue? I don't know how to alter custom drivers, so the more detail you can give the better.


  • Options
    Thomas_OttThomas_Ott RapidMiner Certified Analyst, RapidMiner Certified Expert, Member Posts: 1,761 Unicorn

    Does it require multiple classes? I know that Teradata needed that it drove me nuts to get it to work right.


    When you check the Database drivers, do you get a green check mark?





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