qmlls in the blog article is not working on Windows

activating extension
extensionHostProcess.js:113starting language server
extensionHostProcess.js:113(node:7096) [DEP0005] DeprecationWarning: Buffer() is deprecated due to security and usability issues. Please use the Buffer.alloc(), Buffer.allocUnsafe(), or Buffer.from() methods instead.
(Use `Code --trace-deprecation ...` to show where the warning was created)
extensionHostProcess.js:113Activating QMLLS!
extensionHostProcess.js:113rejected promise not handled within 1 second: Error: Connection to server got closed. Server will not be restarted.
extensionHostProcess.js:113stack trace: Error: Connection to server got closed. Server will not be restarted.
	at LanguageClient.handleConnectionClosed (c:\work\qmlls_research\qmlls-vscode\client\node_modules\vscode-languageclient\lib\common\client.js:2442:47)
	at LanguageClient.handleConnectionClosed (c:\work\qmlls_research\qmlls-vscode\client\node_modules\vscode-languageclient\lib\node\main.js:155:15)
	at closeHandler (c:\work\qmlls_research\qmlls-vscode\client\node_modules\vscode-languageclient\lib\common\client.js:2411:18)
	at CallbackList.invoke (c:\work\qmlls_research\qmlls-vscode\client\node_modules\vscode-jsonrpc\lib\common\events.js:55:39)
	at Emitter.fire (c:\work\qmlls_research\qmlls-vscode\client\node_modules\vscode-jsonrpc\lib\common\events.js:117:36)
	at closeHandler (c:\work\qmlls_research\qmlls-vscode\client\node_modules\vscode-jsonrpc\lib\common\connection.js:256:26)
	at CallbackList.invoke (c:\work\qmlls_research\qmlls-vscode\client\node_modules\vscode-jsonrpc\lib\common\events.js:55:39)
	at Emitter.fire (c:\work\qmlls_research\qmlls-vscode\client\node_modules\vscode-jsonrpc\lib\common\events.js:117:36)
	at StreamMessageReader.fireClose (c:\work\qmlls_research\qmlls-vscode\client\node_modules\vscode-jsonrpc\lib\common\messageReader.js:40:27)
	at Socket.<anonymous> (c:\work\qmlls_research\qmlls-vscode\client\node_modules\vscode-jsonrpc\lib\common\messageReader.js:125:42)
	at Socket.emit (node:events:525:35)
	at Pipe.<anonymous> (node:net:322:12)
	at Pipe.callbackTrampoline (node:internal/async_hooks:130:17)
extensionHostProcess.js:113ApplicationInsights:An invalid instrumentation key was provided. There may be resulting telemetry loss (1) [undefined]
extensionHostProcess.js:113No debugger available, can not send 'variables'[CMakeTools] 2023-09-29T02:17:13.530Z [debug] [extension] Deactivate CMakeTools
extensionHostProcess.js:113clearing timestamp log
extensionHostProcess.js:113deactivating extension