Print message when HttpException is thrown after running `flutter run` (#37440)

diff --git a/packages/flutter_tools/lib/src/resident_runner.dart b/packages/flutter_tools/lib/src/resident_runner.dart
index 88ab5dc..cd618a3 100644
--- a/packages/flutter_tools/lib/src/resident_runner.dart
+++ b/packages/flutter_tools/lib/src/resident_runner.dart

@@ -512,6 +512,23 @@
   }
 }
 
+// Issue: https://github.com/flutter/flutter/issues/33050
+// Matches the following patterns:
+//    HttpException: Connection closed before full header was received, uri = *
+//    HttpException: , uri = *
+final RegExp kAndroidQHttpConnectionClosedExp = RegExp(r'^HttpException\:.+\, uri \=.+$');
+
+/// Returns `true` if any of the devices is running Android Q.
+Future<bool> hasDeviceRunningAndroidQ(List<FlutterDevice> flutterDevices) async {
+  for (FlutterDevice flutterDevice in flutterDevices) {
+    final String sdkNameAndVersion = await flutterDevice.device.sdkNameAndVersion;
+    if (sdkNameAndVersion != null && sdkNameAndVersion.startsWith('Android 10')) {
+      return true;
+    }
+  }
+  return false;
+}
+
 // Shared code between different resident application runners.
 abstract class ResidentRunner {
   ResidentRunner(

diff --git a/packages/flutter_tools/lib/src/run_cold.dart b/packages/flutter_tools/lib/src/run_cold.dart
index 6a79afc..12b494c 100644
--- a/packages/flutter_tools/lib/src/run_cold.dart
+++ b/packages/flutter_tools/lib/src/run_cold.dart

@@ -131,6 +131,13 @@
       await connectToServiceProtocol();
     } catch (error) {
       printError('Error connecting to the service protocol: $error');
+      // https://github.com/flutter/flutter/issues/33050
+      // TODO(blasten): Remove this check once https://issuetracker.google.com/issues/132325318 has been fixed.
+      if (await hasDeviceRunningAndroidQ(flutterDevices) &&
+          error.toString().contains(kAndroidQHttpConnectionClosedExp)) {
+        printStatus('🔨 If you are using an emulator running Android Q Beta, consider using an emulator running API level 29 or lower.');
+        printStatus('Learn more about the status of this issue on https://issuetracker.google.com/issues/132325318');
+      }
       return 2;
     }
     for (FlutterDevice device in flutterDevices) {

diff --git a/packages/flutter_tools/lib/src/run_hot.dart b/packages/flutter_tools/lib/src/run_hot.dart
index 7a8105d..4b09b2b 100644
--- a/packages/flutter_tools/lib/src/run_hot.dart
+++ b/packages/flutter_tools/lib/src/run_hot.dart

@@ -155,6 +155,13 @@
       );
     } catch (error) {
       printError('Error connecting to the service protocol: $error');
+      // https://github.com/flutter/flutter/issues/33050
+      // TODO(blasten): Remove this check once https://issuetracker.google.com/issues/132325318 has been fixed.
+      if (await hasDeviceRunningAndroidQ(flutterDevices) &&
+          error.toString().contains(kAndroidQHttpConnectionClosedExp)) {
+        printStatus('🔨 If you are using an emulator running Android Q Beta, consider using an emulator running API level 29 or lower.');
+        printStatus('Learn more about the status of this issue on https://issuetracker.google.com/issues/132325318.');
+      }
       return 2;
     }