Smoother Onboarding (#25)

* Autoformatter changes

* Updated guardiand script for x86_64

* Added .nvmrc files

* Updated evm-messenger README with common errors

* Revert "Autoformatter changes"

This reverts commit 9c9816c657.

projects/evm-messenger/.nvmrc

@@ -0,0 +1 @@
+v16.14.2

projects/evm-messenger/README.md

@@ -7,7 +7,7 @@ This project uses Foundry to compile and deploy EVM contracts. You can find inst
 The javascript dependencies can be installed via `npm install` in this folder.
 
 ## Test Scripts
-After you have Guardiand running, you can run the basic test with `npm run test`. This will: 
+After you have Guardiand running (you can use the [wormhole-local-validator](https://github.com/wormhole-foundation/xdapp-book/tree/main/projects/wormhole-local-validator), you can run the basic test with `npm run test`. This will: 
 - Deploy a simple Messenger contract (found in chains/evm/src/Messenger.sol) to each EVM chain
 - Register each contract with the other chain
 - Send a message from each contract
@@ -15,4 +15,13 @@ After you have Guardiand running, you can run the basic test with `npm run test`
 - Submit the VAA to each contract
 - Print out the Message
 
-If everything goes correctly, you should get a printout with the Hello World messages on each chain.
+If everything goes correctly, you should get a printout with the Hello World messages on each chain.
+
+## Common Errors
+### Nonce Issues
+If you see transactions failing due to nonce mismatch errors, restart your local evm chain. If using the [wormhole-local-validator](https://github.com/wormhole-foundation/xdapp-book/tree/main/projects/wormhole-local-validator), just rerun `npm run evm` and then retry `npm run test`.
+
+This is intermittent and likely caused by the js lib and evm chain being out of sync.
+
+### Transaction Underpriced Issues
+Transactions failing with the message `transaction underpriced` is an intermittent issue. Restart the evm chains and rerun `npm run test`. If the issue persists, you may need to manually set gas prices when calling the Messenger contract in the `send_msg` logic in `orchestrator.js`.

projects/wormhole-local-validator/.nvmrc

@@ -0,0 +1 @@
+v16.14.2

projects/wormhole-local-validator/guardiand.bash

@@ -9,7 +9,8 @@ DOCKER_IMAGE="ghcr.io/certusone/guardiand:dev.v2"
 DOCKER_FLAGS=
 HOST=
 TERRAD_HOST=
-if [ "$(uname -m)" = "arm64" ]; then
+machine=$(uname -m)
+if [ $machine = "arm64" ] || [ $machine = "x86_64" ]; then
    DOCKER_FLAGS="-p 7070:7070 -p 7071:7071 -p 6060:6060 -p 8999:8999/udp --platform linux/amd64"
    HOST="host.docker.internal"
    TERRAD_HOST="host.docker.internal"