adding a note to specify the config versions that will work with this demo
@@ -34,6 +34,9 @@ cd auction-demo
This will clone down the [sandbox](https://github.com/algorand/sandbox) repository to `./_sandbox` and start some docker containers.
+!!!note
+The following command will default to the `release` configuration. Other configurations that are compatible with this demo are `beta, `nightly` and `dev`. This is because the app requires an unencrypted-default-wallet to sign transactions.
+
```bash
./sandbox up
```
