First Flutter App error: cannot resolve symbol “Properties”

Question

I followed the steps in the Flutter document and tried to build my first Flutter app in Intellij IDEA. And when I try to run it,there was an error about my JAVA_HOME variabl

Answer 1

This issue is due to the not pointing to correct Android API Platform

Solution :

In the Android Studio File > Project Structure

1. Now a window pops up
2. Within that select Project Settings/Project
3. Make sure Project SDK is set to latest platform as mentioned in the pic below

4. Next select Project Settings/Modules sub tab
5. There select the lastest Android SDK you select as earlier

6. Finally replace the GradleException() with FileNotFoundException() as mentioned below

Answer 2

It's working for me:

1. File > Project Structure (Command + ;) > Under Project Settings/Project > Set Project SDK to Android API 29 Platform
2. There should be a notification stating there is an invalid item in the dependencies list under Project Structure/Problems. If there is, go to Project Structure > Under Project Settings/Modules > select app_name_android > Dependencies tab > choose the latest "Android API 29 Platform" in the Module SDK box.
3. Update GradleException() to FileNotFoundException() under android/app/build_gradle since it's not supported in the Java version of Android API 29 Solution found

Answer 3

Need to include google maven repository to your project level build.gradle file.

buildscript {
    repositories {
        google()
        jcenter()
        maven {                                    //add this section 
            url "https://maven.google.com"           
        }
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:3.5.0'
    }
}

Answer 4

I had the same issue in Android Studio. It looks like a bug with the Flutter Plugin so it's pretty likely it's a problem in Intellij too. In Android Studio there is a link to "Open for Editing in Android Studio" (top right). When I click that I see there are no longer any issues highlighted. I would check for a similar link in IntelliJ. Here is the Flutter issue where I learned of this: https://github.com/flutter/flutter/issues/37391.

Answer 5

In yours "project\android\build.gradle" Just change:

classpath 'com.google.gms:google-services:4.3.2'

to:

classpath 'com.google.gms:google-services:4.0.2'

Answer 6

I tried all other suggestions, and they did not help. Then I have removed "new" in front of GradleException, and it solved the problem:

throw GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")

It worked perfectly fine with the "new" word for a long time. I don't know what have caused this change.