I'm following the video https://www.youtube.com/watch?v=kwWioDry9YQ When i try an match a simple message with custom segments using HL7 analyser i get  No idea what I'm doing wrong    All info below, just a standard ADT^A17 produced Message as below  MSH|^~\@|ADM+|GC||EPI|201508131424|CHPFSWAP|ADT^A17|201508131424440062|T|2.2|||||||| ZSH|ADT EVN|A17|201508131424|||NREALM| PID|1|5080261|70034375|124000959^5^M10^VXJ^PN~70034375^^^VXJ^MR|TESTERSIX^MARINDA^^^^^L^||19871217|F||B|^^^NY^11590|||||||01240009500|||||||||||| NK1|0001|TESTER^BILL^^^^^L||^^^NY^11590|||EMCON PV1|1|O|||||^POTTERS LOUIS|||||||||||T|000000022960 PV2||||||||||||||||||||||||OA AL1|1|3|99^NKDA|||20120925 GT1|||||100 MAIN ST^SUITE 703^WESTBURY^NY^11590|||||P|1| NPU|^^^GCV IN1|0001|B88|||||||||||||O|||||||1|||||||||||||||||||||||Y ZPV|OA|||||||||||||||||||||||||||||||||||||||||||||||||||||||||THE|||^^%SBHEADR^^ADD/REVISE OTPT DIAGNOSES ZP1|||||||||||||||||||||||||||||||||||||124000959^5^M10^VXJ^PN~70009375^^^VXJ^MR||^^^NY^11590 ZVS||||||||||001240009595|||||THE PID|1|5099999|7008888|124000959^5^M10^VXJ^PN~7008888^^^VXJ^MR|TESTERSIX^MARINDA^^^^^L^||19871217|F||B|^^^NY^11590|||||||006640009595|||||||||||| PV1|1|O|||||^POTTERS LOUIS|||||||||||T|000000022960 [4] Setup Workspace   Enter one of the above options, ^ to go back a level: 1   This workspace has 1 messages   Document structure derivation can take a long time so you can elect to process just some of them Enter the percentage of messages to scan <100> :100   Begin document structure derivation run .. Loading document structure definition Match messages to document structure: ADT_A17   Time to run derivation scan: 0 seconds   No new document structures were derived.   Finished.   Summary Report for workspace J2EXERCISES\workspace Schema is Test2  ALL: 0 matched, 1 unmatched   \- - - - -   Workspace in J2EXERCISES\workspace  document structure: Test2:ADT_A17  1 unique messages taken from C:\Users\marko\Desktop\A17.txt     \----- Workflow/2 Main Menu    [1] Derive new document structures  [2] Validate messages, optionally fixing the configuration  [3] View history of fixes to the configuration (validation fixes only)  [4] Setup Workspace   Enter one of the above options, ^ to go back a level: