UI Version: 0.8001.1
Description:
$ yarn build:gaia
$ yarn build:local --overwrite=true
$ ./builds/Gaia/darwin_amd64/gaiad start --home ~/.gaiad-testnet
$ yarn start local-testnet
The console shows:

Failed network responses:
decoding bech32 failed: invalid index of 1
invalid bech32 prefix. Expected cosmosaccaddr, Got cosmos
As you can see in the error log, Voyager is connecting to the remote full node which runs an older version of the SDK. To connect to your local node you have to specify the endpoints:
LCD_URL=http://localhost:9070 RPC_URL=http://localhost:26657 yarn start local-testnet
Ah OK, then this a README bug:
Then run Voyager for your local testnet:
$ yarn start local-testnet
Closed via #1508