Erro create Snippet for Card and Collapse the version MDB5

SyntaxError /node_modules/@angular/compiler/fesm2020/compiler.mjs: Unexpected token (77:33)

75 | if (typeof this.contentType === 'object') { 76 | const overrideType = prefix === undefined ? undefined : this.contentType[prefix];

77 | return overrideType ?? this.contentType.default; | ^ 78 | } 79 | return this.contentType; 80 | } (anonymous function) https://sandpack.mdbootstrap.com/static/js/sandbox.c7c7ba5df.js:1:255003 e.value https://sandpack.mdbootstrap.com/static/js/sandbox.c7c7ba5df.js:1:255122 e.value https://sandpack.mdbootstrap.com/static/js/sandbox.c7c7ba5df.js:1:253374 Worker. https://sandpack.mdbootstrap.com/static/js/sandbox.c7c7ba5df.js:1:253982 This screen is visible only in development. It will not appear if the app crashes in production. Open your browser’s developer console to further inspect this error. This error overlay is powered by react-error-overlay used in create-react-app.