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Home » Developing U++ » Android » Android Builder (Android Builder failed to build for android. Javac file not found error is occuring.)
Re: Android Builder [message #57435 is a reply to message #57379] Tue, 10 August 2021 04:00 Go to previous messageGo to previous message
rapidUser is currently offline  rapidUser
Messages: 2
Registered: July 2021
Junior Member
Hi !, Sorry for not responding on time as I did not expected such a quick reply from you.Thanks a lot for reply.
I am from Nepal so I'm sorry for my bad English.
The space you are pointing between Android and Math is because of copy and pasting, this is not the matter.

I tried downloading the nightly build from your given link and found nothing different in the android builder.
I also downloaded all (lastest i.e. r31) sdk components from AndroidStudio (first-run) setup wizard and error still the same.
I am using windows 10 pro.

I have following things installed and working well in the AndroidStudio.
1. jdk_1.8.0 (path variable is also properly set and working)
2. Android_SDK (with following components)
i. Android SDK Tools (revision: 26.1.1)
ii. Android SDK Platform 31 (revision: 1)
iii. Android SDK Platform-Tools (revision: 31.0.3)
iv. Android SDK Build-Tools 31 (revision: 31.0.0)
v. Android Support Repository (revision: 47.0.0)
vi. Google Repository (revision: 58)
vii. SDK Patch Applier v4 (revision: 1)
viii. Android Emulator (revision: 30.7.5)
ix. Intel x86 Emulator Accelerator (revision: 7.6.5)
3. Android_NDK_r21b

I keep my directory on my own way but I'm 100% sure that there is not space in any of directory.
I think you are not getting me correctly the main problem is that javac.exe is expecting java files in the respective
out directory. I also tried mannually copying files to the expected path but it is getting deleted automatically and returns same error.

Here is my console output with [Be Verbose Enabled]. Sorry for spaces duty to copy and pasting.
D:\Files\apps\Installed\jdk1.8.0\bin\javac.exe -version
D:\Files\apps\Installed\jdk1.8.0\bin\javac.exe -version
Exitcode: 0
----- AndroidMathUtility ( ANDROID POSIX LINUX ANDROID ) (1 / 2)
cd C:\Users\Rijwan\Desktop\upp-win-16056\examples\AndroidMathUtility
D:\Files\apps\Installed\jdk1.8.0\bin\javac.exe -version
D:\Files\apps\Installed\jdk1.8.0\bin\javac.exe -version
Exitcode: 0
----- AndroidMath ( MAIN ANDROID POSIX LINUX ANDROID ) (2 / 2)
cd C:\Users\Rijwan\Desktop\upp-win-16056\examples\AndroidMath
C:\Users\Rijwan\Desktop\upp-win16056\out\examples\AndroidMath\Android.Linux.Main.Posix\Sandbox\AndroidMath\AndroidProject\java\.
C:\Users\Rijwan\Desktop\upp-win-16056\out\examples\AndroidMath\Android.Linux.Main.Posix\Sandbox\AndroidMath\AndroidProject\java\..
Building Android Project
-----
Compiling java sources...
D:\Files\apps\Installed\jdk1.8.0\bin\javac.exe -g:none -d C:\Users\Rijwan\Desktop\upp-win-16056\out\examples\AndroidMath\Android.Linux.Main.Posix\Sandbox\AndroidMath\AndroidProject\classes -classpath D:\WorkSpace\SDKs\SDK\platforms\android-29\android.jar;C:\Users\Rijwan\Desktop\upp-win-16056\out\examples\AndroidMath\Android.Linux.Main.Posix\Sandbox\AndroidMath\AndroidProject\build -sourcepath C:\Users\Rijwan\Desktop\upp-win-16056\out\examples\AndroidMath\Android.Linux.Main.Posix\Sandbox\AndroidMath\AndroidProject\java C:\Users\Rijwan\Desktop\upp-win-16056\out\examples\AndroidMath\Android.Linux.Main.Posix\Sandbox\AndroidMath\AndroidProject\java\AndroidMath\Vector.java C:\Users\Rijwan\Desktop\upp-win-16056\out\examples\AndroidMath\Android.Linux.Main.Posix\Sandbox\AndroidMath\AndroidProject\java\AndroidMath\AndroidMath.java C:\Users\Rijwan\Desktop\upp-win-16056\out\examples\AndroidMath\Android.Linux.Main.Posix\Sandbox\AndroidMath\AndroidProject\java\AndroidMath\AndroidMathActivity.java
D:\Files\apps\Installed\jdk1.8.0\bin\javac.exe -g:none -d C:\Users\Rijwan\Desktop\upp-win-16056\out\examples\AndroidMath\Android.Linux.Main.Posix\Sandbox\AndroidMath\AndroidProject\classes -classpath D:\WorkSpace\SDKs\SDK\platforms\android-29\android.jar;C:\Users\Rijwan\Desktop\upp-win-16056\out\examples\AndroidMath\Android.Linux.Main.Posix\Sandbox\AndroidMath\AndroidProject\build -sourcepath C:\Users\Rijwan\Desktop\upp-win-16056\out\examples\AndroidMath\Android.Linux.Main.Posix\Sandbox\AndroidMath\AndroidProject\java C:\Users\Rijwan\Desktop\upp-win-16056\out\examples\AndroidMath\Android.Linux.Main.Posix\Sandbox\AndroidMath\AndroidProject\java\AndroidMath\Vector.java C:\Users\Rijwan\Desktop\upp-win-16056\out\examples\AndroidMath\Android.Linux.Main.Posix\Sandbox\AndroidMath\AndroidProject\java\AndroidMath\AndroidMath.java C:\Users\Rijwan\Desktop\upp-win-16056\out\examples\AndroidMath\Android.Linux.Main.Posix\Sandbox\AndroidMath\AndroidProject\java\AndroidMath\AndroidMathActivity.java
Error executing D:\Files\apps\Installed\jdk1.8.0\bin\javac.exe -g:none -d C:\Users\Rijwan\Desktop\upp-win-16056\out\examples\AndroidMath\Android.Linux.Main.Posix\Sandbox\AndroidMath\AndroidProject\classes -classpath D:\WorkSpace\SDKs\SDK\platforms\android-29\android.jar;C:\Users\Rijwan\Desktop\upp-win-16056\out\examples\AndroidMath\Android.Linux.Main.Posix\Sandbox\AndroidMath\AndroidProject\build -sourcepath C:\Users\Rijwan\Desktop\upp-win-16056\out\examples\AndroidMath\Android.Linux.Main.Posix\Sandbox\AndroidMath\AndroidProject\java C:\Users\Rijwan\Desktop\upp-win-16056\out\examples\AndroidMath\Android.Linux.Main.Posix\Sandbox\AndroidMath\AndroidProject\java\AndroidMath\Vector.java C:\Users\Rijwan\Desktop\upp-win-16056\out\examples\AndroidMath\Android.Linux.Main.Posix\Sandbox\AndroidMath\AndroidProject\java\AndroidMath\AndroidMath.java C:\Users\Rijwan\Desktop\upp-win-16056\out\examples\AndroidMath\Android.Linux.Main.Posix\Sandbox\AndroidMath\AndroidProject\java\AndroidMath\AndroidMathActivity.java
Exitcode: 2
javac: file not found: C:\Users\Rijwan\Desktop\upp-win-16056\out\examples\AndroidMath\Android.Linux.Main.Posix\Sandbox\AndroidMath\AndroidProject\java\AndroidMath\Vector.java
Usage: javac <options> <source files>
use -help for a list of possible options


There were errors. (0:01.56)
D:\Files\apps\Installed\jdk1.8.0\bin\javac.exe -version
D:\Files\apps\Installed\jdk1.8.0\bin\javac.exe -version
Exitcode: 0


Ultimate++ is far better than others like wxWidgets in my perspective. It gives complete native looks and feels. For example the black theme in Windows 10 also working while wxWidgets only support default
white theme.
All I want from you is
1. Test it in Windows OS
2. Explain me the build process. I mean andorid studio currently use gradle-build, do i need specific version of gradle ?
3. If it working on Windows, provide me the link and specify versions of all tools required to build for android from theIDE.
4. If none of above is possible, I am happy with windows. Kindly tell me how much effort (is possible ?) is needed to port existing desktop application to Android when theIDE is ready.
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