Unexpected token. I can't use the package at all.

[hyunlee1o]

Im running the service on linux to use the lsp on emacs and this happened.

SyntaxError: Unexpected token '.'
    at wrapSafe (internal/modules/cjs/loader.js:915:16)
    at Module._compile (internal/modules/cjs/loader.js:963:27)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1027:10)
    at Module.load (internal/modules/cjs/loader.js:863:32)
    at Function.Module._load (internal/modules/cjs/loader.js:708:14)
    at Module.require (internal/modules/cjs/loader.js:887:19)
    at require (internal/modules/cjs/helpers.js:74:18)
    at Object.<anonymous> (/home/jssanchez/.emacs.d/.cache/lsp/npm/vscode-langservers-extracted/lib/node_modules/vscode-langservers-extracted/node_modules/vscode-jsonrpc/lib/common/api.js:37:21)
    at Module._compile (internal/modules/cjs/loader.js:999:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1027:10)
/home/jssanchez/.emacs.d/.cache/lsp/npm/vscode-langservers-extracted/lib/node_modules/vscode-langservers-extracted/node_modules/vscode-jsonrpc/lib/common/linkedMap.js:40
        return this._head?.value;
        ```

[luxetobscura]

In my case I had an outdated version of Node.js (10.x) that didn't support optional chaining. Try updating Node.js to 14.0.0 or newer.

Ref: javascript - How to use optional chaining in Node.js 12 - Stack Overflow