This is likely a result of an interesting quirk in the flow.json. When deploying a project, the flow.json accounts section needs to be formatted one way, but when executing transactions, it needs to be formatted another. Hoping to get clarity from the Flow team on this at some point.

Here's an example of how it should look when you try to execute transactions:

```

"emulator-account": {

"address": "f8d6e0586b0a20c7",

"privateKey": "e5ca2b0946358223f0555206144fe4d74e65cbd58b0933c5232ce195b9058cdd",

"sigAlgorithm": "ECDSA_P256",

"hashAlgorithm": "SHA3_256",

"chain": "flow-emulator"

},

```