Random Errors

Posted: April 29, 2025 | Categories: Flutter Development

I run Microsoft's Java on my development system and whenever I upgrade Java on my system, it breaks my Flutter toolchain. Here's what it looks like.

When I execute flutter doctor, the tool shows an error in my Android toolchain:

Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, 3.29.2, on Microsoft Windows [Version 10.0.26100.3915], locale en-US)
[✓] Windows Version (11 Pro 64-bit, 24H2, 2009)
[!] Android toolchain - develop for Android devices (Android SDK version 35.0.0)
    ✗ Cannot execute C:\Program Files\Microsoft\jdk-17.0.14.7-hotspot\bin\java to determine the version
[✓] Chrome - develop for the web
[✓] Visual Studio - develop Windows apps (Visual Studio Community 2022 17.13.6)
[✓] Android Studio (version 2024.2)
[✓] VS Code (version 1.99.3)
[✓] Connected device (3 available)
[✓] Network resources

To check my system to see what version of Java the system sees, I use the following command:

where java

which gives me:

C:\Program Files\Microsoft\jdk-17.0.15.6-hotspot\bin\java.exe

In this case, my Flutter toolchain is configured for a version of Java that's no longer on the system, it's been upgraded. Checking the Flutter config:

flutter config --list

Shows the following:

jdk-dir: C:\Program Files\Microsoft\jdk-17.0.14.7-hotspot

Which is not the current version of Java installed on my system.

Reconfiguring Flutter to use the newer version of Java is as simple as:

flutter config --jdk-dir "C:\Program Files\Microsoft\jdk-17.0.15.6-hotspot"

Gives me the following result:

Setting "jdk-dir" value to "C:\Program Files\Microsoft\jdk-17.0.15.6-hotspot".

Validating the updated Flutter config using

flutter doctor

Gives me the following results:

Running flutter doctor...
Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, 3.29.3, on Microsoft Windows [Version 10.0.26100.3915], locale en-US)
[✓] Windows Version (11 Pro 64-bit, 24H2, 2009)
[✓] Android toolchain - develop for Android devices (Android SDK version 35.0.0)
[✓] Chrome - develop for the web
[✓] Visual Studio - develop Windows apps (Visual Studio Community 2022 17.13.6)
[✓] Android Studio (version 2024.2)
[✓] VS Code (version 1.99.3)
[✓] Connected device (3 available)
[✓] Network resources

Fixed!