file:///C:/Users/Rob/AppData/Roaming/Pub/Cache/global_packages/web_server/bin/web_server.dart.snapshot:1: Error: The system cannot find the file specified.
Failed to precompile web_server:bin\web_server:
file:///C:/Users/Rob/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/web_server-2.0.0+3/lib/src/web_server/http_server_request_handler.dart:323:46: Error: A value of type '(dart._http::HttpRequest) → dart.async::Future<dart.core::Null>' can't be assigned to a variable of type '(dynamic) → void'.
Try changing the type of the left hand side, or casting the right hand side to '(dynamic) → void'.
this._functionStore[urlData.id].listen((final HttpRequest httpRequest) async {
^
file:///C:/Users/Rob/AppData/Roaming/Pub/Cache/hosted/pub.dartlang.org/web_server-2.0.0+3/lib/src/web_server/web_socket_server_request_handler.dart:44:15: Error: A value of type '(dart.core::Map<dart.core::String, dynamic>) → dart.core::Null' can't be assigned to a variable of type '(dynamic) → void'.
Try changing the type of the left hand side, or casting the right hand side to '(dynamic) → void'.
}).listen((final Map<String, dynamic> json) {
^
file:///C:/Users/Rob/AppData/Roaming/Pub/Cache/git/cache-c4b719ed8c6a02b17b35624997585231f53bbd54/lib/cache.dart:248:16: Error: A value of type '(dart.core::Map<dart.core::String, dynamic>) → dart.async::Future<dart.core::Null>' can't be assigned to a variable of type '(dynamic) → void'.
Try changing the type of the left hand side, or casting the right hand side to '(dynamic) → void'.
..listen((final Map<String, dynamic> messageFromMainThread) async {