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From Itamar Syn-Hershko <>
Subject Re: Unknown format version: -11
Date Tue, 11 Mar 2014 20:37:05 GMT
What is this "another application"? Lucene.NET can only open Lucene indexes
created by Lucene up to version 3.0.3. If this "another app" is using a
later version of Lucene, that'd explain why it can't be opened.


Itamar Syn-Hershko | @synhershko <>
Freelance Developer & Consultant
Author of RavenDB in Action <>

On Tue, Mar 11, 2014 at 7:21 PM, Johan Klijn <>wrote:

> I downloaded the latest version of Lucene.NET and created a sample
> application. I want to try to open a index created by another application.
> When I try to open the index I get the error message "Unknown format
> version: -11".
> Probably the index created by the other application is using a newer
> version. Do you know if this is true, and when Lucene.NET is going to
> support version 11?
> Regards,
> Johan.

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