Lesson 29, 30 in foundry fundamentals

[accurec]

Hello! I am following the lesson and able to start the node in Docker - getting this in terminal:

In memory node started v0.1.0-alpha.34:
 - zkSync Node (L2):
  - Chain ID: 260
  - RPC URL: http://127.0.0.1:8011
  - Rich accounts: https://docs.zksync.io/build/test-and-debug/in-memory-node#pre-configured-rich-wallets
 - Note: every restart will necessitate a reset of MetaMask's cached account data

Also can see the container running an image in Docker UI.

However, when I try to deploy contract to the RPC I get the following error:

Error: error sending request for url (http://127.0.0.1:8011/)

Context:
- Error #0: error sending request for url (http://127.0.0.1:8011/)
- Error #1: client error (SendRequest)
- Error #2: connection closed before message completed

Has anyone encountered something like this?

[heheboii11]

Please run anvil in your terminal
Open a new terminal than the one you are using and run anvil in that terminal
just enter the command anvil in the new terminal

[EngrPips]

Patrick explicitly said we should not sweat over setting up a local zksync chain and just continue with the course if stuff didn't work.

[heheboii11]

yes, feel the same do not go too hard on zkysync, just use anvil or ethereum sepolia.

[EngrPips]

Indeed.

[accurec]

Yeah I know it is optional, but wanted to figure this one out regardless.

[EngrPips]

I get the picture. Please update us on the solution so that it will serve as a reference to help anyone who runs into the same issue in the future.

[fbozhkov]

I have the same problem. I think it has something with docker port mapping/forwarding but I can't seem to solve it. In the end I just followed the installation without the zksync cli and it worked https://docs.zksync.io/build/test-and-debug/in-memory-node#install-and-set-up-era_test_node

[EngrPips]

Awesome! Thanks for the heads-up, Friend.