# ScenarioBackendException - "Failed to create scenario context"

**URL:** <https://forum.canton.network/t/scenariobackendexception-failed-to-create-scenario-context/80>\
**Category:** App Development\
**Tags:** damlc\
**Created:** [April 8, 2020, 12:54pm UTC](https://forum.canton.network/t/scenariobackendexception-failed-to-create-scenario-context/80 "2020-04-08T12:54:12Z")\
**Posts on this page:** 1\
**Showing post:** 3

<div class="post-metadata">

**Author:** ![cocreature](https://yyz2.discourse-cdn.com/flex034/user_avatar/forum.canton.network/cocreature/32/36_2.png) [@cocreature](https://forum.canton.network/u/cocreature)\
**Post date:** [April 8, 2020, 7:26pm UTC](https://forum.canton.network/t/scenariobackendexception-failed-to-create-scenario-context/80/3 "2020-04-08T19:26:09Z")

</div>

The section in `daml.yaml` needs to look as follows:

```haskell
scenario-service:
   grpc-timeout: 60

```

This sets the timeout to 60 seconds. Note that for most projects there is no need to modify this. This only becomes necessary once projects grow very large.

You can find more information on the fields that you can use in `daml.yaml` at [https://docs.daml.com/tools/assistant.html#project-config-file-daml-yaml](https://docs.daml.com/tools/assistant.html#project-config-file-daml-yaml)

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