Unable to Activate the Flashbot Option via Yarn Deploy #1
Description
Hi All and many thanks to Daniel for developing this interesting bot. To begin, I am a real beginner with no knowledge of JS, TS, or Sol coding and programming. I am just trying to understand what it takes to build and interact with web3 and blockchain Apps using practical examples like Liqbot. I was able to clone the repo to vscode and run it successfully but without the flashbot option. Using a Goerli testnet (or Mainnet) node on Alchemy, I was able to register eth-call requests which means the bot would have triggered liquidations if any trove ICR dropped below the MCR. I was not able to assess this as no liquidation events happened (Eth price on the rise) since I started few days back.
The issue is that I was unable to deploy the flashbot smart contract using "yarn deploy". This is what I got whenever I tried:
PS C:\Users\Mine\Documents\GitHub\liqbot> yarn deploy
yarn run v1.22.19
$ node --loader ts-node/esm scripts/deploy.ts
(node:7664) ExperimentalWarning: --experimental-loader is an experimental feature. This feature could change at any time
(Use node --trace-warnings ... to show where the warning was created)
<ref *1> Error: spawnSync yarn ENOENT
at Object.spawnSync (node:internal/child_process:1111:20)
at spawnSync (node:child_process:814:24)
at execFileSync (node:child_process:857:15)
at file:///C:/Users/Mine/Documents/GitHub/liqbot/scripts/deploy.ts:9:3
at ModuleJob.run (node:internal/modules/esm/module_job:198:25)
at async Promise.all (index 0)
at async ESMLoader.import (node:internal/modules/esm/loader:385:24)
at async loadESM (node:internal/process/esm_loader:88:5)
at async handleMainPromise (node:internal/modules/run_main:61:12) {
errno: -4058,
code: 'ENOENT',
syscall: 'spawnSync yarn',
path: 'yarn',
spawnargs: [ '--cwd', 'contracts', 'deploy', '--network', 'external' ],
error: [Circular *1],
status: null,
signal: null,
output: null,
pid: 0,
stdout: null,
stderr: null
}
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.
Doing some research, it appears that the error "spawnSync yarn ENOENT" is a well known problem. Being a novice, I was unable to resolve by myself and thought of raising this issue here.
My environment is:
- Windows 10/Pro Version 20H2
- Vscode 1.69.0
- Node 16.15.1
- Yarn 1.22.19
- Npm 8.13.2
On a last note, whenever I check npm version, I get the following warning:
PS C:\Users\Mine\Documents\GitHub\liqbot> npm -v
npm WARN config global --global, --local are deprecated. Use --location=global instead.
8.13.2
I will appreciate any guidance on how to deploy and enable the flashbot liquidation.
Regards,