On Windows, i work with Flutter using Android Studio.
Since i was facing some issues before this one, i have successfully uninstalled and reinstalled the latest versions of both Android Studio and Java.
So, on this machine, i have:
- Android Studio
Electric Eel 2022.1.1.19 - jdk 19
C:\Program Files\Java\jdk-19 - jre 1.8
C:\Program Files\Java\jre1.8.0_361
Since Android Studio uses its own jre, i have copy-pasted the content of jdk folder into C:\Program Files\Android\Android Studio\jre
Environment variables are properly set: JAVA_HOME leads to C:\Program Files\Java\jdk-19 and Path contains both C:\Program Files\Java\jdk-19\bin and C:\Program Files\Java\jre1.8.0_361\bin
This is the problem i'm facing now if i try to build my flutter project:
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':device_info_plus:compileDebugJavaWithJavac'.
> Could not find tools.jar. Please check that C:\Program Files\Android\Android Studio\jre contains a valid JDK installation.
* 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 13s
Exception: Gradle task assembleDebug failed with exit code 1
Now, the main problem is that the file tools.jar DOES NOT EXIST AT ALL.
Is there a way to fix this?
Side Notes:
- flutter doctor -v
[√] Flutter (Channel stable, 3.3.10, on Microsoft Windows [Versione 10.0.19045.2486], locale it-IT)
• Flutter version 3.3.10 on channel stable at C:\Users\~\sdks\flutter
• Upstream repository https://github.com/flutter/flutter.git
• Framework revision 135454af32 (5 weeks ago), 2022-12-15 07:36:55 -0800
• Engine revision 3316dd8728
• Dart version 2.18.6
• DevTools version 2.15.0
Checking Android licenses is taking an unexpectedly long time...[√] Android toolchain - develop for Android devices (Android SDK version 31.0.0)
• Android SDK at C:\Users\~\AppData\Local\Android\sdk
• Platform android-33, build-tools 31.0.0
• Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java
• Java version Java(TM) SE Runtime Environment (build 1.8.0_361-b09)
• All Android licenses accepted.
[√] Chrome - develop for the web
• Chrome at C:\Program Files\Google\Chrome\Application\chrome.exe
[√] Visual Studio - develop for Windows (Visual Studio Professional 2022 17.4.4)
• Visual Studio at C:\Program Files\Microsoft Visual Studio\2022\Professional
• Visual Studio Professional 2022 version 17.4.33213.308
• Windows 10 SDK version 10.0.22000.0
[√] Android Studio (version 2022.1)
• Android Studio at C:\Program Files\Android\Android Studio
• Flutter plugin can be installed from:
https://plugins.jetbrains.com/plugin/9212-flutter
• Dart plugin can be installed from:
https://plugins.jetbrains.com/plugin/6351-dart
• Java version Java(TM) SE Runtime Environment (build 1.8.0_361-b09)
[√] VS Code (version 1.74.3)
• VS Code at C:\Users\~\AppData\Local\Programs\Microsoft VS Code
• Flutter extension version 3.56.0
[√] Connected device (4 available)
• sdk gphone64 x86 64 (mobile) • emulator-5554 • android-x64 • Android 12 (API 31) (emulator)
• Windows (desktop) • windows • windows-x64 • Microsoft Windows [Versione 10.0.19045.2486]
• Chrome (web) • chrome • web-javascript • Google Chrome 108.0.5359.125
• Edge (web) • edge • web-javascript • Microsoft Edge 109.0.1518.55
[√] HTTP Host Availability
• All required HTTP hosts are available
• No issues found!
- Android Studio builds and launches native Android apps without any issue
CodePudding user response：
Eventually i found the solution: here it is, hoping to help someone in the future.
Note: I had to download the jdk-17 because as of today jdk-19 would not work with flutter.
You need to add the path to find your java jdk into your projectfolder/android/gradle.properties file.
simply add this line
org.gradle.java.home=C\:\\Program Files\\Java\\jdk-17
here's my gradle.properties file to give an example
org.gradle.jvmargs=-Xmx1536M
android.useAndroidX=true
android.enableJetifier=true
android.bundle.enableUncompressedNativeLibs=false
org.gradle.java.home=C\:\\Program Files\\Java\\jdk-17
If you installed jdk into another path, you need to specify that in here