The development server returned response error code: 500

URL: http://10.0.2.2:8081/index.delta?platform=android&dev=true&minify=false

Body:
{"type":"TransformError","lineNumber":47,"column":22,"filename":"node_modules\\react-native\\Libraries\\LayoutAnimation\\LayoutAnimation.js","errors":[{"description":"SyntaxError: C:\\Users\\stabb\\repos\\temporeactnative\\node_modules\\react-native\\scripts\\node_modules\\react-native\\Libraries\\LayoutAnimation\\LayoutAnimation.js: Support for the experimental syntax 'nullishCoalescingOperator' isn't currently enabled (47:23):\n\n\u001b[0m \u001b[90m 45 | \u001b[39m  \u001b[33mUIManager\u001b[39m\u001b[33m.\u001b[39mconfigureNextLayoutAnimation(\u001b[0m\n\u001b[0m \u001b[90m 46 | \u001b[39m    config\u001b[33m,\u001b[39m\u001b[0m\n\u001b[0m\u001b[31m\u001b[1m>\u001b[22m\u001b[39m\u001b[90m 47 | \u001b[39m    onAnimationDidEnd \u001b[33m?\u001b[39m\u001b[33m?\u001b[39m \u001b[36mfunction\u001b[39m() {}\u001b[33m,\u001b[39m\u001b[0m\n\u001b[0m \u001b[90m    | \u001b[39m                      \u001b[31m\u001b[1m^\u001b[22m\u001b[39m\u001b[0m\n\u001b[0m \u001b[90m 48 | \u001b[39m    \u001b[36mfunction\u001b[39m() {\u001b[0m\n\u001b[0m \u001b[90m 49 | \u001b[39m      \u001b[90m/* unused */\u001b[39m\u001b[0m\n\u001b[0m \u001b[90m 50 | \u001b[39m    }\u001b[33m,\u001b[39m\u001b[0m\n\nAdd @babel/plugin-proposal-nullish-coalescing-operator (https://git.io/vb4Se) to the 'plugins' section of your Babel config to enable transformation.","filename":"node_modules\\react-native\\Libraries\\LayoutAnimation\\LayoutAnimation.js","lineNumber":47}],"name":"SyntaxError","message":"SyntaxError: C:\\Users\\stabb\\repos\\temporeactnative\\node_modules\\react-native\\scripts\\node_modules\\react-native\\Libraries\\LayoutAnimation\\LayoutAnimation.js: Support for the experimental syntax 'nullishCoalescingOperator' isn't currently enabled (47:23):\n\n\u001b[0m \u001b[90m 45 | \u001b[39m  \u001b[33mUIManager\u001b[39m\u001b[33m.\u001b[39mconfigureNextLayoutAnimation(\u001b[0m\n\u001b[0m \u001b[90m 46 | \u001b[39m    config\u001b[33m,\u001b[39m\u001b[0m\n\u001b[0m\u001b[31m\u001b[1m>\u001b[22m\u001b[39m\u001b[90m 47 | \u001b[39m    onAnimationDidEnd \u001b[33m?\u001b[39m\u001b[33m?\u001b[39m \u001b[36mfunction\u001b[39m() {}\u001b[33m,\u001b[39m\u001b[0m\n\u001b[0m \u001b[90m    | \u001b[39m                      \u001b[31m\u001b[1m^\u001b[22m\u001b[39m\u001b[0m\n\u001b[0m \u001b[90m 48 | \u001b[39m    \u001b[36mfunction\u001b[39m() {\u001b[0m\n\u001b[0m \u001b[90m 49 | \u001b[39m      \u001b[90m/* unused */\u001b[39m\u001b[0m\n\u001b[0m \u001b[90m 50 | \u001b[39m    }\u001b[33m,\u001b[39m\u001b[0m\n\nAdd @babel/plugin-proposal-nullish-coalescing-operator (https://git.io/vb4Se) to the 'plugins' section of your Babel config to enable transformation.","stack":"SyntaxError: C:\\Users\\stabb\\repos\\temporeactnative\\node_modules\\react-native\\scripts\\node_modules\\react-native\\Libraries\\LayoutAnimation\\LayoutAnimation.js: Support for the experimental syntax 'nullishCoalescingOperator' isn't currently enabled (47:23):\n\n\u001b[0m \u001b[90m 45 | \u001b[39m  \u001b[33mUIManager\u001b[39m\u001b[33m.\u001b[39mconfigureNextLayoutAnimation(\u001b[0m\n\u001b[0m \u001b[90m 46 | \u001b[39m    config\u001b[33m,\u001b[39m\u001b[0m\n\u001b[0m\u001b[31m\u001b[1m>\u001b[22m\u001b[39m\u001b[90m 47 | \u001b[39m    onAnimationDidEnd \u001b[33m?\u001b[39m\u001b[33m?\u001b[39m \u001b[36mfunction\u001b[39m() {}\u001b[33m,\u001b[39m\u001b[0m\n\u001b[0m \u001b[90m    | \u001b[39m                      \u001b[31m\u001b[1m^\u001b[22m\u001b[39m\u001b[0m\n\u001b[0m \u001b[90m 48 | \u001b[39m    \u001b[36mfunction\u001b[39m() {\u001b[0m\n\u001b[0m \u001b[90m 49 | \u001b[39m      \u001b[90m/* unused */\u001b[39m\u001b[0m\n\u001b[0m \u001b[90m 50 | \u001b[39m    }\u001b[33m,\u001b[39m\u001b[0m\n\nAdd @babel/plugin-proposal-nullish-coalescing-operator (https://git.io/vb4Se) to the 'plugins' section of your Babel config to enable transformation.\n    at Object.raise (C:\\Users\\stabb\\repos\\temporeactnative\\node_modules\\@babel\\parser\\lib\\index.js:3834:17)\n    at Object.expectPlugin (C:\\Users\\stabb\\repos\\temporeactnative\\node_modules\\@babel\\parser\\lib\\index.js:5147:18)\n    at Object.parseExprOp (C:\\Users\\stabb\\repos\\temporeactnative\\node_modules\\@babel\\parser\\lib\\index.js:5751:16)\n    at Object.parseExprOps (C:\\Users\\stabb\\repos\\temporeactnative\\node_modules\\@babel\\parser\\lib\\index.js:5727:17)\n    at Object.parseMaybeConditional (C:\\Users\\stabb\\repos\\temporeactnative\\node_modules\\@babel\\parser\\lib\\index.js:5690:23)\n    at Object.parseMaybeAssign (C:\\Users\\stabb\\repos\\temporeactnative\\node_modules\\@babel\\parser\\lib\\index.js:5635:21)\n    at Object.parseMaybeAssign (C:\\Users\\stabb\\repos\\temporeactnative\\node_modules\\@babel\\parser\\lib\\index.js:2616:18)\n    at Object.parseExprListItem (C:\\Users\\stabb\\repos\\temporeactnative\\node_modules\\@babel\\parser\\lib\\index.js:6930:18)\n    at Object.parseCallExpressionArguments (C:\\Users\\stabb\\repos\\temporeactnative\\node_modules\\@babel\\parser\\lib\\index.js:6051:22)\n    at Object.parseSubscript (C:\\Users\\stabb\\repos\\temporeactnative\\node_modules\\@babel\\parser\\lib\\index.js:5949:29)"}
processBundleResult
    BundleDownloader.java:296
access$200
    BundleDownloader.java:37
onResponse
    BundleDownloader.java:174
execute
    RealCall.java:206
run
    NamedRunnable.java:32
runWorker
    ThreadPoolExecutor.java:1133
run
    ThreadPoolExecutor.java:607
run
    Thread.java:761