# CoolTerm and nrf connnect appImage for Linux not working

**URL:** <https://discourse.appimage.org/t/coolterm-and-nrf-connnect-appimage-for-linux-not-working/2322>\
**Category:** Using AppImages\
**Created:** [April 24, 2021, 6:03pm UTC](https://discourse.appimage.org/t/coolterm-and-nrf-connnect-appimage-for-linux-not-working/2322 "2021-04-24T18:03:05Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![JamieBasil](https://avatars.discourse-cdn.com/v4/letter/j/4da419/32.png) [@JamieBasil](https://discourse.appimage.org/u/JamieBasil)\
**Post date:** [April 24, 2021, 6:03pm UTC](https://discourse.appimage.org/t/coolterm-and-nrf-connnect-appimage-for-linux-not-working/2322/1 "2021-04-24T18:03:05Z")

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Hi - I’ve downloaded the CoolTerm appImage and nrf Connect appImage and I’ve changed the settings to be executable. When I try to run the appImage files it creates a file named “@+@��c@8 (invalid encoding)” and then nothing happens.

Any ideas to what the issue might be?

I’m using Ubuntu 18.04.5 LTS

Thanks  
Jamie

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**Author:** ![probono](https://yyz1.discourse-cdn.com/flex027/user_avatar/discourse.appimage.org/probono/32/81_2.png) [@probono](https://discourse.appimage.org/u/probono)\
**Post date:** [May 1, 2021, 8:54pm UTC](https://discourse.appimage.org/t/coolterm-and-nrf-connnect-appimage-for-linux-not-working/2322/2 "2021-05-01T20:54:48Z")

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Are you on a 64-bit Intel system?

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**Author:** ![JamieBasil](https://avatars.discourse-cdn.com/v4/letter/j/4da419/32.png) [@JamieBasil](https://discourse.appimage.org/u/JamieBasil)\
**Post date:** [May 2, 2021, 5:10am UTC](https://discourse.appimage.org/t/coolterm-and-nrf-connnect-appimage-for-linux-not-working/2322/3 "2021-05-02T05:10:43Z")

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I’m using ARM (nvidia jetson nano dev kit).

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**Author:** ![probono](https://yyz1.discourse-cdn.com/flex027/user_avatar/discourse.appimage.org/probono/32/81_2.png) [@probono](https://discourse.appimage.org/u/probono)\
**Post date:** [May 11, 2021, 5:53pm UTC](https://discourse.appimage.org/t/coolterm-and-nrf-connnect-appimage-for-linux-not-working/2322/4 "2021-05-11T17:53:32Z")

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Are you 100% sure that your AppImages are for the 64-bit ARM architecture then?