# Error Reading Migration File: Found 2 files that match changelog.xml

**URL:** <https://ask.lenses.io/t/error-reading-migration-file-found-2-files-that-match-changelog-xml/240>\
**Category:** Lenses\
**Created:** [May 28, 2024, 7:48pm UTC](https://ask.lenses.io/t/error-reading-migration-file-found-2-files-that-match-changelog-xml/240 "2024-05-28T19:48:54Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Edward\_k](https://avatars.discourse-cdn.com/v4/letter/e/b5a626/32.png) [@Edward\_k](https://ask.lenses.io/u/Edward_k)\
**Post date:** [May 28, 2024, 7:48pm UTC](https://ask.lenses.io/t/error-reading-migration-file-found-2-files-that-match-changelog-xml/240/1 "2024-05-28T19:48:54Z")

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I am upgrading Lenses to a newer version and I received this error message: `Error Reading Migration File: Found 2 files that match io/lenses/store/jdbc/migration/changelog.xml`. What could it be and how can I resolve it?

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**Author:** ![grudtnerv](https://dub1.discourse-cdn.com/flex017/user_avatar/ask.lenses.io/grudtnerv/32/101_2.png) [@grudtnerv](https://ask.lenses.io/u/grudtnerv)\
**Post date:** [May 28, 2024, 7:50pm UTC](https://ask.lenses.io/t/error-reading-migration-file-found-2-files-that-match-changelog-xml/240/2 "2024-05-28T19:50:51Z")

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Hello Edward\_k,

This error may have occurred when extracting the Lenses tarball into a directory that already contained another instance, which resulted in some files being duplicated. It is necessary to extract the Lenses tarball into a directory that does not contain another Lenses instance.

Cheers!