# Invalid file format

**URL:** <https://forums.plex.tv/t/invalid-file-format/725642>\
**Category:** Plex Media Server\
**Tags:** server-synology\
**Created:** [June 30, 2021, 8:11am UTC](https://forums.plex.tv/t/invalid-file-format/725642 "2021-06-30T08:11:59Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![tom80H](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/tom80h/32/19753_2.png) [@tom80H](https://forums.plex.tv/u/tom80H)\
**Post date:** [June 30, 2021, 8:54am UTC](https://forums.plex.tv/t/invalid-file-format/725642/2 "2021-06-30T08:54:08Z")

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If this happens while updating the app it not related to the permissions for the media folders. More likely you got the wrong installer package (e.g. if you try to install the Intel package on an ARM device)

> [@Synology FAQ - Questions, Answers, and a few How-To's](https://forums.plex.tv/t/490215/8):
>
> FAQ 3: Which version do I need to download, Intel or ARM? The answer is dependent on the processor your Synology uses: The package you download should be the one specifically created for your model. The specific CPU in your NAS, and its model number, can be found in the DSM Control Panel -\> Info Center. See also: [What kind of CPU does my NAS have?](https://www.synology.com/en-global/knowledgebase/DSM/tutorial/Compatibility_Peripherals/What_kind_of_CPU_does_my_NAS_have)[Go to Index](https://forums.plex.tv/t/490215/1)

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