Hi Mike,

Thank you for the quick reply. This does indeed seem to be the problem so I 
will have to recalculate the offset.... I'll report back when completed in 
case others have a similar problem. 

Thanks! 
Connor

On Monday, August 7, 2017 at 6:09:29 PM UTC-5, Michael Hoopmann wrote:
>
> Hi Connor,
>
> In the example file you provided, I see that your 
> <indexListOffset>761801</indexListOffset> points to the middle of the 
> intensity array of scan 100 and not to the start of the indexList.
>
>  
>
> Your actual indexListOffset looks to be 769983. The error message is 
> because the indexListOffset needs to be set to the correct position.
>
>  
>
> Similarly, all your scan indexes listed in the <offset> tags point to the 
> wrong places. You can’t see that yet because the TPP stopped reading the 
> file when it gave you the first error message.
>
>  
>
> I am not sure what openMS does when a bad index is found; perhaps it just 
> recomputes it on the fly at your expense without notifying you. This is 
> probably undesired behavior if your goal is to reduce overhead. I will see 
> if I can get the TPP to output more verbose error messages in the future, 
> to perhaps notify you of the specific problem with the index.
>
>  
>
> Cheers,
>
> Mike
>
>  
>
> *From:* spctools...@googlegroups.com <javascript:> [mailto:
> spctools...@googlegroups.com <javascript:>] *On Behalf Of *Connor Hoffmann
> *Sent:* Monday, August 07, 2017 3:26 PM
> *To:* spctools-discuss
> *Subject:* [spctools-discuss] TPP Search Software not working with 
> generated mzML files
>
>  
>
> Hi all,
>
>  
>
> My group is working on software capable of generating mzML files that can 
> be searched/viewed with TPP and other software.
>
>  
>
> The mzML files we generate are openable and viewable in programs like 
> seeMS. MS/MS searches can also be conducted on our generated files in 
> programs like Mascot (through their server) and MSGF+. 
>
>  
>
> The issue is that when I try to run out mzML file in a comet search(or any 
> other search part of the TPP pipeline) this error is thrown: 
>
>  
>
>                                                                           
> test.mzml(1) : error 2: Syntax error parsing XML.
>
>  
>
> I understand that this is probably an error with how the mzML files are 
> getting formatted. Does anyone have any advice as to why our files can be 
> searched in other software that's not part of the TPP? Do searches like 
> Comet have more strict formatting standards?
>
>  
>
> Also our generated mzML files pass xml and mzML validation put out by 
> openMS. 
>
>  
>
> I know a workaround is to convert the mzML into a TPP comatible mzML using 
> MsConvert, however if at possible I would like if our generated files were 
> compatible with TPP searches without the added overhead of converting them.
>
>  
>
> I have attached an example of one of our generated mzML files should you 
> like yo view it.
>
>  
>
> Thank you!
>
>  
>
> Connor Hoffmann
>
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