# Nexus Repo migration IllegalStateException: Blob not found

**URL:** <https://community.sonatype.com/t/nexus-repo-migration-illegalstateexception-blob-not-found/4573>\
**Category:** Sonatype Nexus Repository\
**Tags:** npm\
**Created:** [July 7, 2020, 11:56pm UTC](https://community.sonatype.com/t/nexus-repo-migration-illegalstateexception-blob-not-found/4573 "2020-07-07T23:56:19Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![saqibahmed515](https://yyz1.discourse-cdn.com/flex047/user_avatar/community.sonatype.com/saqibahmed515/32/1306_2.png) [@saqibahmed515](https://community.sonatype.com/u/saqibahmed515)\
**Post date:** [July 8, 2020, 12:17am UTC](https://community.sonatype.com/t/nexus-repo-migration-illegalstateexception-blob-not-found/4573/2 "2020-07-08T00:17:07Z")

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Found the solution. I ignored an instruction in the referred article: “Note that **the directories must be copied when Nexus Repo is not running** ”

Copied the directories again with nexus service stopped and everything worked now. Leaving it here as a reference if anybody stumbles on the same issue.

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_[View the full topic](https://community.sonatype.com/t/nexus-repo-migration-illegalstateexception-blob-not-found/4573)._