# AU validation error
**URL:** https://forum.juce.com/t/au-validation-error/7980
**Category:** Audio Plugins
**Created:** [January 11, 2012, 12:45pm UTC](https://forum.juce.com/t/au-validation-error/7980 "2012-01-11T12:45:37Z")
**Posts on this page:** 8
**Page:** 1
### Author:  [@Harrie\_Munnik](https://forum.juce.com/u/Harrie_Munnik)
#### Post date: [January 11, 2012, 12:45pm UTC](https://forum.juce.com/t/au-validation-error/7980/1 "2012-01-11T12:45:37Z")
I get the next validation error:
validating Audio Unit EMpTy250 by ERS:
* * *
```
AU Validation Tool
Version: 1.6.1a1
Copyright 2003-2007, Apple, Inc. All Rights Reserved.
Specify -h (-help) for command options
```
* * *
* * *
## VALIDATING AUDIO UNIT: ‘aufx’ - ‘EMpT’ - ‘ERSY’
Manufacturer String: ERS
AudioUnit name: EMpTy250
Component Version: 2.5.0 (0x20500)
-
- PASS
* * *
TESTING OPEN TIMES:
COLD:
Time to open AudioUnit: 110.368 ms
WARM:
Time to open AudioUnit: 0.060 ms
ERROR: Component Version mismatch: Res Vers = 0x20500, Comp Vers = 0x20000
FIRST TIME:
Time for initialization: 0.362 ms
-
- FAIL
* * *
## AU VALIDATION FAILED: CORRECT THE ERRORS ABOVE.
What am I doing wrong??
Harrie
---
### Author:  [@Salvator](https://forum.juce.com/u/Salvator)
#### Post date: [January 11, 2012, 12:59pm UTC](https://forum.juce.com/t/au-validation-error/7980/2 "2012-01-11T12:59:08Z")
> [@](#):
>
> ERROR: Component Version mismatch: Res Vers = 0x20500, Comp Vers = 0x20000
I’d say just clean and rebuild ?
This happen to me sometimes when saving from introjucer, that the version is not always fully updated.
Probably some cache …
---
### Author:  [@Harrie\_Munnik](https://forum.juce.com/u/Harrie_Munnik)
#### Post date: [January 11, 2012, 1:00pm UTC](https://forum.juce.com/t/au-validation-error/7980/3 "2012-01-11T13:00:34Z")
I will try that. Thank you for the fast response! I am testing on my mini-mac with reaper and that does not need the AU validation…
Harrie
---
### Author:  [@Harrie\_Munnik](https://forum.juce.com/u/Harrie_Munnik)
#### Post date: [January 12, 2012, 8:10pm UTC](https://forum.juce.com/t/au-validation-error/7980/4 "2012-01-12T20:10:37Z")
Maybe a bit oftopic…
After downloading :[http://developer.apple.com/softwarelicensing/agreements/zip/au\_validation\_tool.pkg.zip](http://developer.apple.com/softwarelicensing/agreements/zip/au_validation_tool.pkg.zip) I install this but cannot open it in the terminal because it tells me that I need to install Rosetta… Is that version of AUVal in the age of ppc??
Is this the smartest way to go?? Sorry, I am not that familiar with macs…
Harrie
---
### Author:  [@dave96](https://forum.juce.com/u/dave96)
#### Post date: [January 12, 2012, 9:09pm UTC](https://forum.juce.com/t/au-validation-error/7980/5 "2012-01-12T21:09:04Z")
auval should be installed as part of the XCode development tools. If you type ‘auval’ at the Terminal does it run?
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### Author:  [@Harrie\_Munnik](https://forum.juce.com/u/Harrie_Munnik)
#### Post date: [January 13, 2012, 3:19pm UTC](https://forum.juce.com/t/au-validation-error/7980/6 "2012-01-13T15:19:46Z")
Nope it does not run. It tells me that Rosetta needs to be installed. I found that the AUval I downloaded with this link is from 2004. I am reinstalling Xcode 3.2.6, but it does not automatically upgrade the AUval. I am going to look how to update the AUVal…
Harrie
---
### Author:  [@Harrie\_Munnik](https://forum.juce.com/u/Harrie_Munnik)
#### Post date: [January 14, 2012, 7:20am UTC](https://forum.juce.com/t/au-validation-error/7980/7 "2012-01-14T07:20:35Z")
In the meantime clearing caches and clearing and rebuilding did not resolve the validation error. I am thinking of going back to 2.00 as a version number to solve this one. Anyone any other options not mentioned?? I am using the july pre quake juce.
Harrie
---
### Author:  [@Salvator](https://forum.juce.com/u/Salvator)
#### Post date: [January 16, 2012, 11:27am UTC](https://forum.juce.com/t/au-validation-error/7980/8 "2012-01-16T11:27:30Z")
Just a guess, look in your Info.plist and check versioning there too.
btw : My own AU validation, show the Component’s Bundle Version while your doesn’t. Maybe that’s a hint ?
## [code]
Manufacturer String: TriTone Digital
AudioUnit Name: ColorTone
Component Version: 2.0.4 (0x20004)
Component’s Bundle Version: 2.0.4[/code]
Actually I would encourage you to spend some time and try go past juce quake in order to use introducer and modules.
Using introjucer curred a lot of these kinds of error for me.