# Inital (just added) CollectionProxy causes java exception if the Collection property isn't set

**URL:** <https://forum.defold.com/t/inital-just-added-collectionproxy-causes-java-exception-if-the-collection-property-isnt-set/7698>\
**Category:** Bugs\
**Created:** [April 22, 2017, 11:07pm UTC](https://forum.defold.com/t/inital-just-added-collectionproxy-causes-java-exception-if-the-collection-property-isnt-set/7698 "2017-04-22T23:07:01Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![mrphil](https://forum-defold.b-cdn.net/user_avatar/forum.defold.com/mrphil/32/3682_2.png) [@mrphil](https://forum.defold.com/u/mrphil)\
**Post date:** [April 22, 2017, 11:07pm UTC](https://forum.defold.com/t/inital-just-added-collectionproxy-causes-java-exception-if-the-collection-property-isnt-set/7698/1 "2017-04-22T23:07:01Z")

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I hope the title covers it. Here’s the error test:  
java.lang.IllegalArgumentException: No implementation of method: :proj-path of protocol: #'editor.resource/Resource found for class: nil

I’m in the middle of Ludum Dare and will expanded on the bug after it is over.

Thanks,  
Philip

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**Author:** ![mrphil](https://forum-defold.b-cdn.net/user_avatar/forum.defold.com/mrphil/32/3682_2.png) [@mrphil](https://forum.defold.com/u/mrphil)\
**Post date:** [April 22, 2017, 11:10pm UTC](https://forum.defold.com/t/inital-just-added-collectionproxy-causes-java-exception-if-the-collection-property-isnt-set/7698/2 "2017-04-22T23:10:57Z")

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Also, the “Report” button goes to “502 Bad Gateway”

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**Author:** ![Pkeod](https://forum-defold.b-cdn.net/user_avatar/forum.defold.com/pkeod/32/606_2.png) [@Pkeod](https://forum.defold.com/u/Pkeod)\
**Post date:** [April 23, 2017, 5:21am UTC](https://forum.defold.com/t/inital-just-added-collectionproxy-causes-java-exception-if-the-collection-property-isnt-set/7698/3 "2017-04-23T05:21:02Z")

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If report button isn’t working can create new issues directly here [GitHub · Where software is built](https://github.com/defold/editor2-issues/issues)

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**Author:** ![britzl](https://forum-defold.b-cdn.net/user_avatar/forum.defold.com/britzl/32/23_2.png) [@britzl](https://forum.defold.com/u/britzl)\
**Post date:** [April 24, 2017, 6:15am UTC](https://forum.defold.com/t/inital-just-added-collectionproxy-causes-java-exception-if-the-collection-property-isnt-set/7698/4 "2017-04-24T06:15:17Z")

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Strange. Please report the issue via the link pkeod provided.

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**Author:** ![Neb](https://forum-defold.b-cdn.net/user_avatar/forum.defold.com/neb/32/36883_2.png) [@Neb](https://forum.defold.com/u/Neb)\
**Post date:** [August 8, 2024, 12:52pm UTC](https://forum.defold.com/t/inital-just-added-collectionproxy-causes-java-exception-if-the-collection-property-isnt-set/7698/5 "2024-08-08T12:52:01Z")

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Was there a fix found to the error message in the title. I am having the same error and cannot find a way to fix it.