Common Flutter Not Working Issues And Fixes
Every now and then my Android Studio breaks down because something changed. A Windows update here. An environment change for a different project there. Here are the common issues I face, how I fixed them and I hope they also work for you.
ISSUE: Android Emulator Hypervisor Driver for AMD Processors installation failed
Here is the console output:
Android SDK is up to date.
Running Android Emulator Hypervisor Driver for AMD Processors installer
[SC] ControlService FAILED 1062:
The service has not been started.
[SC] DeleteService SUCCESS
[SC] StartService FAILED with error 4294967201
Andoird Emulator Hypervisor Driver for AMD Processors installation failed. To install Android Emulator Hypervisor Driver for AMD Processors follow the instructions found at: https://github.com/google/android-emulator-hypervisor-driver-for-amd-processors
Done
What’s going on: Your virtualization is not enabled on your BIOS.
How to fix Android Emulator Hypervisor Driver for AMD Processors installation failed (Windows only):
- Restart your computer. While it’s loading in, press F2 repeatedly until the BIOS page comes up
- Navigate around until you find the virtualization option. Enable it. Save and exit.
Notes: for AMD Processors, Virtualization can be abbreviated to SVM Mode and is located inside the Advanced option.
ISSUE: no JAVA_HOME
Here is the console output:
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.
How to fix no JAVA_HOME (Windows only):
- click on the Start button
- type env, hit enter

- Select Environment Variables
- Click on ‘New…’
- Fill in the variable name field with JAVA_HOME
- Fill in the variable value with where your Java jdk is on your computer. If you don’t have a Java jdk, you can download it at the official site here and then go through the steps to add the path.
- Click OK, and then OK again to exit out. The no JAVA_HOME issue should disappear.

ISSUE: Could not initialize class org.codehaus.groovy.runtime.InvokerHelper
Here is the console output:
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: Could not initialize class org.codehaus.groovy.runtime.InvokerHelper 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 960ms Exception: Gradle task assembleDebug failed with exit code 1
How to fix Gradle task assembleDebug failed with exit code 1:
In your project folder, navigate to gradle>wrapper>gradle-wrapper.properties
Change your distributionUrl
to:
https\://services.gradle.org/distributions/gradle-6.4.1-all.zip
So it should look something like this:

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