Excel 2013 Vlookup List Changes in Separate Column

I'm running a VLOOKUP in Excel to compare names between columns and indicate changes. I'm comparing Columns G and H, and listing results in Column I.  What is happening is Column I lists all the same entries in Colulmn G, and the names that don't exist in column H are indicated in column I with an: #N/A

Instead of the #N/A indication of the non-match, I wish to have the names shown that don't match listed in either column I or column J.

I'm using =VLOOKUP(G2,H:H,1,FALSE)
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fireguy1125Asked:
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NBVCConnect With a Mentor Commented:
Sorry, missing a parenthesis:

=IFERROR(INDEX(G:G,MATCH(ROWS(J$2:J2),I:I,0)),"")
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NBVCCommented:
Instead of the Vlookup in column I, add this formula:

=IF(ISNA(MATCH(G2,H:H,0)),COUNT(I$1:I1)+1,"")

Copied down.  This finds and numbers the non-matches.

now in column J at J2:

=IFERROR(INDEX(G:G,MATCH(ROWS(J$2:J2),I:I,0),"")

copied down.
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fireguy1125Author Commented:
I'm getting an error message on the =IFERROR formula, it says:

Your formula is missing a parenthesis--) or (. Check the formula, and then add the parenthesis in the appropriate place.
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