# Signature / Savepanel

**URL:** <https://forums.fusetools.com/t/signature-savepanel/7938>\
**Category:** How-to Discussions\
**Created:** [November 20, 2019, 7:27pm UTC](https://forums.fusetools.com/t/signature-savepanel/7938 "2019-11-20T19:27:12Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Cristian\_Karmy](https://yyz1.discourse-cdn.com/flex035/user_avatar/forums.fusetools.com/cristian_karmy/32/480_2.png) [@Cristian\_Karmy](https://forums.fusetools.com/u/Cristian_Karmy)\
**Post date:** [November 20, 2019, 7:27pm UTC](https://forums.fusetools.com/t/signature-savepanel/7938/1 "2019-11-20T19:27:12Z")

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Hi! In previous versions of Fuse I use this module to sign and save a panel to image [https://github.com/ckarmy/fuse-signature-savePanel](https://github.com/ckarmy/fuse-signature-savePanel)

But now with lastest Fuselibs and Uno crash when the app start. I don`t know why! This error is on iOS and Android and I get:

```
2019-11-20 16:21:03.584425-0300 SignatureSave[1325:980698] Error: Uno.AggregateException: One or more errors occurred.
---> (Inner Exception #0) Uno.ArgumentOutOfRangeException: index: value out of range<---

---> (Inner Exception #1) Uno.ArgumentOutOfRangeException: index: value out of range<---
libc++abi.dylib: terminating with uncaught exception of type uThrowable: Fuse.WrapException
(lldb) 

```

Any Idea how to solve it?

Thanks!

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<div class="post-metadata">

**Author:** ![aeq](https://yyz1.discourse-cdn.com/flex035/user_avatar/forums.fusetools.com/aeq/32/129_2.png) [@aeq](https://forums.fusetools.com/u/aeq)\
**Post date:** [November 21, 2019, 5:56am UTC](https://forums.fusetools.com/t/signature-savepanel/7938/2 "2019-11-21T05:56:34Z")

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Have you tried commenting out code to find where the problem is?

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<div class="post-metadata">

**Author:** ![Cristian\_Karmy](https://yyz1.discourse-cdn.com/flex035/user_avatar/forums.fusetools.com/cristian_karmy/32/480_2.png) [@Cristian\_Karmy](https://forums.fusetools.com/u/Cristian_Karmy)\
**Post date:** [November 21, 2019, 2:55pm UTC](https://forums.fusetools.com/t/signature-savepanel/7938/3 "2019-11-21T14:55:01Z")

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i follow your advise and I found the problem! Thanks!

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<div class="post-metadata">

**Author:** ![aeq](https://yyz1.discourse-cdn.com/flex035/user_avatar/forums.fusetools.com/aeq/32/129_2.png) [@aeq](https://forums.fusetools.com/u/aeq)\
**Post date:** [November 21, 2019, 3:29pm UTC](https://forums.fusetools.com/t/signature-savepanel/7938/4 "2019-11-21T15:29:52Z")

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Good job man 💪