embedded-trainings-2020/embedded-workshop-book/src/troubleshoot-dongle-flash.md

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2020-07-13 15:41:37 +00:00
# `dongle-flash` not working
``` console
$ dongle-flash loopback.hex
packaging iHex using nrfutil ...
Error: No such file or directory (os error 2)
```
2021-01-19 15:29:44 +00:00
this indicates that `nrfutil`, the Python tool, is not installed or not available in your PATH. Instructions on how to install `nrfutil` can be found in the [`nrfutil` section of the Installation Instructions].
❗️ If you install `nrfutil` in a virtual environment you'll need to activate the environment; the `nrfutil` binary must be available in your PATH.
[`nrfutil` section of the Installation Instructions]: ./installation.md#nrfutil