Unable to build- "keyword 'enum' is reserved"

[fafrd]

I cloned the repo, checked out commit 4ad0998 (latest release), then ran yarn install followed by yarn build.

I got the following error:

yarn run v1.22.10
$ run-s build:*
$ yarn workspace @liquity/dev-frontend build
$ run-s build:*
$ node scripts/set-version.js
$ react-scripts build
(node:81424) [DEP0148] DeprecationWarning: Use of deprecated folder mapping "./" in the "exports" field module resolution of the package at /Users/kian/Documents/eth/liquity/liquity/node_modules/postcss-safe-parser/node_modules/postcss/package.json.
Update this package.json to use a subpath pattern like "./*".
(Use `node --trace-deprecation ...` to show where the warning was created)
Creating an optimized production build...
Failed to compile.

../lib-ethers/src/ReadableEthersLiquity.ts 42:0
Module parse failed: The keyword 'enum' is reserved (42:0)
You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders
| const BETA = Decimal.from(2);
|
> enum BackendTroveStatus {
|   nonExistent,
|   active,

I am using node v16.7.0, yarn 1.22.10 on ARM MacOS 11.5.2.

[MaksimBorovets]

The same issue =(

[gWhy-j]

same issue :(