Flutter assets will be downloaded from https://storage.flutter-io.cn. Make sure you trust this source! Launching libmain.dart on AOSP on IA Emulator in debug mode… Running Gradle task ‘assembleDebug’… FAILURE: Build failed with an exception. * What went wrong: The supplied javaHome seems to be invalid. I cannot find the java executable. Tried location: C:Program FilesAndroidAndroid Studiojrebinjava.exe * Try: > Run with –stacktrace option to get the stack trace. > Run with –info or –debug option to get more log output. > Run with –scan to get full insights. * Get more help at https://help.gradle.org Exception: Gradle task assembleDebug failed with exit code 1 Flutter assets will be downloaded from https://storage.flutter-io.cn. Make sure you trust this source! Launching libmain.dart on AOSP on IA Emulator in debug mode… Running Gradle task ‘assembleDebug’… ERROR: JAVA_HOME is not set and no ‘java’ command could be found in your PATH. Please set the JAVA_HOME variable in your environment to match the location of your Java installation. Exception: Gradle task assembleDebug failed with exit code 1

Solution

Open CMD in administator mode and type the following command: 
cd C:Program FilesAndroidAndroid Studio
mklink /D "jre" "jbr"