# Error migrate to stardog 7

**URL:** <https://community.stardog.com/t/error-migrate-to-stardog-7/1880>\
**Category:** Support\
**Created:** [September 6, 2019, 12:01pm UTC](https://community.stardog.com/t/error-migrate-to-stardog-7/1880 "2019-09-06T12:01:50Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![s5uybw](https://avatars.discourse-cdn.com/v4/letter/s/f07891/32.png) [@s5uybw](https://community.stardog.com/u/s5uybw)\
**Post date:** [September 6, 2019, 12:01pm UTC](https://community.stardog.com/t/error-migrate-to-stardog-7/1880/1 "2019-09-06T12:01:50Z")

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Hi, got error when trying to start Stardog server after migration to stardog 7.

java.lang.UnsatisfiedLinkError: /opt/stardog/lib/libStarrocks.so: /lib64/libc.so.6: version `GLIBC\_2.18' not found (required by /opt/stardog/lib/libStarrocks.so)

Stardog is installed on AWS 4.14.133-88.112.amzn1.x86\_64

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**Author:** ![stephen](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.stardog.com/stephen/32/27_2.png) [@stephen](https://community.stardog.com/u/stephen)\
**Post date:** [September 6, 2019, 12:10pm UTC](https://community.stardog.com/t/error-migrate-to-stardog-7/1880/2 "2019-09-06T12:10:43Z")

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We have seen this error with Stardog 7.0.0 on certain flavors of Linux. You can either upgrade to 7.0.1 (where we have updated the logic for picking native libs) or you can rename the `libStarrocks-CentOS-7.so` library in $STARDOG/lib to `libStarrocks.so`, since that is the correct file.

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<div class="post-metadata">

**Author:** ![s5uybw](https://avatars.discourse-cdn.com/v4/letter/s/f07891/32.png) [@s5uybw](https://community.stardog.com/u/s5uybw)\
**Post date:** [September 6, 2019, 1:28pm UTC](https://community.stardog.com/t/error-migrate-to-stardog-7/1880/3 "2019-09-06T13:28:57Z")

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The error is while upgraded to 7.0.1. so I rename libStarrocks-CentOS-7.so to libStarrocks.so. got following error now:

WARN 2019-09-06 13:25:38,378 [main] com.complexible.stardog.metadata.MetadataIO:readBytes(300): Unrecognized option in the metadata: index.connection.timeout

WARN 2019-09-06 13:25:38,389 [main] com.complexible.stardog.metadata.MetadataIO:readBytes(300): Unrecognized option in the metadata: index.connection.timeout

WARN 2019-09-06 13:25:38,392 [main] com.complexible.stardog.metadata.MetadataIO:readBytes(300): Unrecognized option in the metadata: index.connection.timeout

WARN 2019-09-06 13:25:38,394 [main] com.complexible.stardog.metadata.MetadataIO:readBytes(300): Unrecognized option in the metadata: index.connection.timeout

WARN 2019-09-06 13:25:38,481 [main] com.complexible.stardog.metadata.MetadataIO:readBytes(300): Unrecognized option in the metadata: index.connection.timeout

WARN 2019-09-06 13:25:38,509 [main] com.complexible.stardog.metadata.MetadataIO:readBytes(300): Unrecognized option in the metadata: index.connection.timeout

WARN 2019-09-06 13:25:38,516 [main] com.complexible.stardog.metadata.MetadataIO:readBytes(300): Unrecognized option in the metadata: index.connection.timeout

WARN 2019-09-06 13:25:38,521 [main] com.complexible.stardog.metadata.MetadataIO:readBytes(300): Unrecognized option in the metadata: index.connection.timeout

WARN 2019-09-06 13:25:38,522 [main] com.complexible.stardog.metadata.MetadataIO:readBytes(300): Unrecognized option in the metadata: index.connection.timeout

WARN 2019-09-06 13:25:38,524 [main] com.complexible.stardog.metadata.MetadataIO:readBytes(300): Unrecognized option in the metadata: index.connection.timeout

Index format is obsolete, manual migration is required: /stardog/data/system

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<div class="post-metadata">

**Author:** ![stephen](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.stardog.com/stephen/32/27_2.png) [@stephen](https://community.stardog.com/u/stephen)\
**Post date:** [September 6, 2019, 1:52pm UTC](https://community.stardog.com/t/error-migrate-to-stardog-7/1880/4 "2019-09-06T13:52:12Z")

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Vivian,

It looks like you still need to perform the [Stardog 7 migration steps](https://www.stardog.com/docs/#_migrating_to_stardog_7) to convert your existing STARDOG\_HOME to one that is compatible with Stardog 7.

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**Author:** ![system](https://canada1.discourse-cdn.com/flex030/uploads/stardog/original/2X/e/ed66b48a616f505106a4acde3c9cee7e6da9bc67.svg) [@system](https://community.stardog.com/u/system)\
**Post date:** [September 20, 2019, 1:52pm UTC](https://community.stardog.com/t/error-migrate-to-stardog-7/1880/5 "2019-09-20T13:52:23Z")

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