App does not run on phone emulator

[Bicentricnote33]

I just downloaded flutter on android studio, and there's a demo app. However, I cant run the demo app.
I downloaded the Pixel 3 XL api 28
after opening the phone, when i press the green run button, i get this error:

Launching lib\main.dart on Android SDK built for x86 in debug mode...
Running Gradle task 'assembleDebug'...

FAILURE: Build failed with an exception.

• What went wrong:
  Execution failed for task ':app:compileDebugJavaWithJavac'.

java.lang.IllegalAccessError: class org.gradle.internal.compiler.java.ClassNameCollector (in unnamed module @0x7a7153) cannot access class com.sun.tools.javac.code.Symbol$TypeSymbol (in module jdk.compiler) because module jdk.compiler does not export com.sun.tools.javac.code to unnamed module @0x7a7153

• 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

BUILD FAILED in 3s
Exception: Gradle task assembleDebug failed with exit code 1

im not sure what this means, please help!

[darshankawar]

The error is:

java.lang.IllegalAccessError: class org.gradle.internal.compiler.java.ClassNameCollector (in unnamed module @0x7a7153) cannot access class com.sun.tools.javac.code.Symbol$TypeSymbol (in module jdk.compiler) because module jdk.compiler does not export com.sun.tools.javac.code to unnamed module @0x7a7153

It seems the gradle version you are using isn't yet compatible and hence throwing the error. Try downgrading the gradle version which hopefully should resolve your issue.
See these similar issues: gradle/gradle#15538. gradle/gradle#16641 (comment)

Also, this doesn't seem to be framework issue, but maybe coming from gradle, so if you still face any issue, please file it here: https://github.com/gradle/gradle/issues or ask support questions on StackOverflow.

Closing from here.

[github-actions]

This thread has been automatically locked since there has not been any recent activity after it was closed. If you are still experiencing a similar issue, please open a new bug, including the output of flutter doctor -v and a minimal reproduction of the issue.