yarn demo brought me so many ERROR messages ...

[jiapei100]

➜  monaco-tm git:(main) ✗ yarn demo
yarn run v1.22.19
warning ../../../package.json: No license field
$ webpack-dev-server --config webpack.config.cjs --port 8084
ℹ ｢wds｣: Project is running at http://localhost:8084/
ℹ ｢wds｣: webpack output is served from /
ℹ ｢wds｣: Content not from webpack is served from ....../monaco-tm
✖ ｢wdm｣: assets by path *.js 25.2 MiB
  asset ts.worker.bundle.js 10.9 MiB [emitted] (name: ts.worker)
  asset app.bundle.js 7.66 MiB [emitted] (name: app)
  asset css.worker.bundle.js 2.41 MiB [emitted] (name: css.worker)
  asset html.worker.bundle.js 1.71 MiB [emitted] (name: html.worker)
  asset json.worker.bundle.js 1.24 MiB [emitted] (name: json.worker)
  asset editor.worker.bundle.js 843 KiB [emitted] (name: editor.worker)
  asset editor.worker.js 447 KiB [emitted]
assets by path *.ttf 59.7 KiB
  asset b3726f0165bf67ac68494ee7a1b9f6ce.ttf 59.6 KiB [emitted] (auxiliary name: app)
  asset 932f67b02cb3212e2768.ttf 80 bytes [emitted] [immutable] [from: node_modules/monaco-editor/esm/vs/base/browser/ui/codicons/codicon/codicon.ttf] (auxiliary name: app)
runtime modules 7.89 KiB 35 modules
modules by path ./node_modules/monaco-editor/esm/vs/ 17.7 MiB (javascript) 80 bytes (asset) 749 modules
modules by path ./node_modules/webpack-dev-server/ 21.2 KiB 12 modules
modules by path ./node_modules/url/ 49.1 KiB 6 modules
modules by path ./src/*.ts 29.8 KiB 5 modules
modules by path ./node_modules/html-entities/lib/*.js 61 KiB 5 modules
modules by path ./node_modules/webpack/hot/ 2.1 KiB 3 modules
modules by path ./node_modules/css-loader/dist/runtime/*.js 2.89 KiB 3 modules
modules by mime type image/png 833 bytes 3 modules
modules by path ./node_modules/vscode-textmate/release/ 148 KiB 2 modules
modules by mime type image/svg+xml 3.17 KiB 2 modules
modules by path ./node_modules/call-bind/*.js 1.68 KiB 2 modules
modules by path ./node_modules/has-symbols/*.js 2.13 KiB 2 modules
modules by path ./node_modules/function-bind/*.js 1.55 KiB 2 modules
+ 13 modules

WARNING in ./node_modules/vscode-textmate/release/main.js 23:15-27
Critical dependency: the request of a dependency is an expression
 @ ./src/providers.ts 1:0-69 18:28-36 29:23-38 99:23-30
 @ ./src/app.ts 13:0-57 85:25-51

1 warning has detailed information that is not shown.
Use 'stats.errorDetails: true' resp. '--stats-error-details' to show it.

ERROR in ....../monaco-tm/node_modules/@types/node/ts4.8/test.d.ts
914:33-36
[tsl] ERROR in ....../monaco-tm/node_modules/@types/node/ts4.8/test.d.ts(914,34)
      TS1005: '?' expected.

ERROR in ....../monaco-tm/node_modules/@types/node/ts4.8/test.d.ts
915:16-17
[tsl] ERROR in ....../monaco-tm/node_modules/@types/node/ts4.8/test.d.ts(915,17)
      TS1005: ':' expected.

ERROR in ....../monaco-tm/node_modules/@types/node/ts4.8/test.d.ts
916:16-17
[tsl] ERROR in ....../monaco-tm/node_modules/@types/node/ts4.8/test.d.ts(916,17)
      TS1005: ',' expected.

ERROR in ....../monaco-tm/node_modules/@types/node/ts4.8/test.d.ts
919:33-36
[tsl] ERROR in ....../monaco-tm/node_modules/@types/node/ts4.8/test.d.ts(919,34)
      TS1005: '?' expected.

ERROR in ....../monaco-tm/node_modules/@types/node/ts4.8/test.d.ts
920:16-17
[tsl] ERROR in ....../monaco-tm/node_modules/@types/node/ts4.8/test.d.ts(920,17)
      TS1005: ':' expected.

ERROR in ....../monaco-tm/node_modules/@types/node/ts4.8/test.d.ts
921:16-17
[tsl] ERROR in ....../monaco-tm/node_modules/@types/node/ts4.8/test.d.ts(921,17)
      TS1005: ',' expected.

ERROR in ....../monaco-tm/node_modules/@types/node/ts4.8/test.d.ts
921:25-26
[tsl] ERROR in ....../monaco-tm/node_modules/@types/node/ts4.8/test.d.ts(921,26)
      TS1005: ',' expected.

ERROR in ....../monaco-tm/node_modules/@types/node/ts4.8/test.d.ts
922:4-5
[tsl] ERROR in ....../monaco-tm/node_modules/@types/node/ts4.8/test.d.ts(922,5)
      TS1109: Expression expected.

ERROR in ....../monaco-tm/node_modules/@types/node/ts4.8/test.d.ts
926:23-24
[tsl] ERROR in ....../monaco-tm/node_modules/@types/node/ts4.8/test.d.ts(926,24)
      TS1005: ',' expected.

ERROR in ....../monaco-tm/node_modules/@types/node/ts4.8/test.d.ts
930:34-35
[tsl] ERROR in ....../monaco-tm/node_modules/@types/node/ts4.8/test.d.ts(930,35)
      TS1005: ',' expected.

ERROR in ....../monaco-tm/node_modules/@types/node/ts4.8/test.d.ts
936:38-39
[tsl] ERROR in ....../monaco-tm/node_modules/@types/node/ts4.8/test.d.ts(936,39)
      TS1005: ',' expected.

ERROR in ....../monaco-tm/node_modules/@types/node/ts4.8/test.d.ts
940:20-21
[tsl] ERROR in ....../monaco-tm/node_modules/@types/node/ts4.8/test.d.ts(940,21)
      TS1005: ',' expected.

ERROR in ....../monaco-tm/node_modules/@types/node/ts4.8/test.d.ts
945:18-25
[tsl] ERROR in ....../monaco-tm/node_modules/@types/node/ts4.8/test.d.ts(945,19)
      TS1005: ',' expected.

ERROR in ....../monaco-tm/node_modules/@types/node/ts4.8/test.d.ts
945:26-34
[tsl] ERROR in ....../monaco-tm/node_modules/@types/node/ts4.8/test.d.ts(945,27)
      TS1005: ':' expected.

ERROR in ....../monaco-tm/node_modules/@types/node/ts4.8/test.d.ts
945:35-38
[tsl] ERROR in ....../monaco-tm/node_modules/@types/node/ts4.8/test.d.ts(945,36)
      TS1005: ',' expected.

ERROR in ....../monaco-tm/node_modules/@types/node/ts4.8/test.d.ts
945:54-56
[tsl] ERROR in ....../monaco-tm/node_modules/@types/node/ts4.8/test.d.ts(945,55)
      TS1005: '{' expected.

ERROR in ....../monaco-tm/node_modules/@types/node/ts4.8/test.d.ts
945:63-64
[tsl] ERROR in ....../monaco-tm/node_modules/@types/node/ts4.8/test.d.ts(945,64)
      TS1005: ',' expected.

ERROR in ....../monaco-tm/node_modules/@types/node/ts4.8/test.d.ts
945:76-77
[tsl] ERROR in ....../monaco-tm/node_modules/@types/node/ts4.8/test.d.ts(945,77)
      TS1005: ',' expected.

ERROR in ....../monaco-tm/node_modules/@types/node/ts4.8/test.d.ts
949:21-22
[tsl] ERROR in ....../monaco-tm/node_modules/@types/node/ts4.8/test.d.ts(949,22)
      TS1005: ',' expected.

19 errors have detailed information that is not shown.
Use 'stats.errorDetails: true' resp. '--stats-error-details' to show it.

webpack 5.88.0 compiled with 19 errors and 1 warning in 4740 ms
ℹ ｢wdm｣: Failed to compile.

Can anyboby give me a hand? Look like a TypeScript issue...