# Unit Labels lead to parsing Error

**Category:** [Archetype Designer](https://discourse.openehr.org/c/archetype-designer/30)
**Created:** 2025-02-07 16:11 UTC
**Views:** 102
**Replies:** 3
**URL:** https://discourse.openehr.org/t/unit-labels-lead-to-parsing-error/6304

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## Post #1 by @Lars_Fuhrmann

Hi there, 


I wanted to ask whether I'm doing something wrong or there is small bug:
I think the Archetype designer produces adl files that do not parse correctly as soon as a label for the units is used. 

I tested this out with a clean test Archetype containing just one "DV_Quantity" element.  

It still parsed correctly when I just chose dioptres as the unit without a Label:

![image|443x378, 75%](upload://6Uk9yckC2TuN1Z7Upq9GlLP9mpc.png)

But as soon as I entered "Diopter" in the Label field I got this error when trying to upload it: 

![image|634x352, 75%](upload://4FikBj37LdxTarONRmBeSljmlxN.png)
 
and somehow  it does not follow the ATxxxx naming at that position

![image|568x355, 75%](upload://rn552mMkjybS2HknAwQF6W8rqrL.png)

 I attached my file for reference: 
 [openEHR-EHR-OBSERVATION.test.v0.adl|attachment](upload://6b0a46s6IzFxWo1dwKg1eop3zLw.adl) (2.3 KB)


The same thing happened to me when using meters and feet in another Archetype, so it's not specific to the Diopter unit.
I will just not use the unit labels for now, but thought it may be of interest, or is there somewhere else i should report this to?

Many thanks!

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## Post #2 by @ian.mcnicoll

The unit labels are a Better extension, and do not create legal ADL.

Most of us think that adding these labels in archetypes is a bad idea TBH. Much better to let the UI when a human friendly label is required

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## Post #3 by @Lars_Fuhrmann

That makes sense, thanks Ian! :)

(Not that it wouldn't be nice for beginners if it did not break the adl though!)

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## Post #4 by @siljelb

Personally I think the option should be hidden when in "archetype mode".

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**Canonical:** https://discourse.openehr.org/t/unit-labels-lead-to-parsing-error/6304
**Original content:** https://discourse.openehr.org/t/unit-labels-lead-to-parsing-error/6304