# Exception: Error Unpacking

**URL:** <https://forum.inductiveautomation.com/t/exception-error-unpacking/15118>\
**Category:** Module Development\
**Created:** [August 20, 2017, 9:39am UTC](https://forum.inductiveautomation.com/t/exception-error-unpacking/15118 "2017-08-20T09:39:32Z")\
**Posts on this page:** 1\
**Showing post:** 4

<div class="post-metadata">

**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\
**Post date:** [August 20, 2017, 11:56pm UTC](https://forum.inductiveautomation.com/t/exception-error-unpacking/15118/4 "2017-08-20T23:56:56Z")

</div>

It looks like the source of the problem are these errors:

```auto
Caused by: java.util.zip.ZipException: duplicate entry: META-INF/maven/com.inductiveautomation.ignition.examples/scripting-rpc-client/pom.properties

```

You seem to have the same problem as the guy in [this thread](http://forum.inductiveautomation.com/t/module-creation-problem-in-7-9-4-beta-1/14654/5).

[I suggested building from the command line with Eclipse closed, as it seemed others have faced this issue and it’s got something to do with Windows and Eclipse.](http://forum.inductiveautomation.com/t/module-creation-problem-in-7-9-4-beta-1/14654/9?u=kevin.herron)

Try that and see if it works?

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