# Teal debugging - Invocation error

**URL:** <https://forum.algorand.co/t/teal-debugging-invocation-error/3321>\
**Category:** General\
**Tags:** teal, smart-contracts\
**Created:** [May 18, 2021, 8:26am UTC](https://forum.algorand.co/t/teal-debugging-invocation-error/3321 "2021-05-18T08:26:08Z")\
**Posts on this page:** 1\
**Showing post:** 1

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**Author:** ![pagito](https://avatars.discourse-cdn.com/v4/letter/p/3ec8ea/32.png) [@pagito](https://forum.algorand.co/u/pagito)\
**Post date:** [May 18, 2021, 8:26am UTC](https://forum.algorand.co/t/teal-debugging-invocation-error/3321/1 "2021-05-18T08:26:08Z")

</div>

I’m getting the following error when debugging atomic transfer with `tealdbg`:

```auto
Debug error: all 1 program(s) failed in less than a second, invocation error?

```

Atomic transaction consists of 5 grouped transactions. They are approved by Stateful and stateless contract, Bug can be anywhere, so it’s hard to guess what is the problem. Is this some kind of generic error?

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