Error compiling example project in LAMW
lazarus / 43-Android

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Lazarinr · 2025-08-11 04:05

When I create a new project in LAMW, it compiles normally without
errors. However, when I compile a project from the demo folder, this
error occurs.

Code: Pascal  [Select][+][-]window.onload = function(){var x1 =
document.getElementById("main_content_section"); if (x1) { var x =
document.getElementsByClassName("geshi");for (var i = 0; i
MessagesVerbose: Selected chip architecture: armeabiVerbose: Taking
libraries from folder: C:\lamw_manager\LAMW\lazandroidmodulewizard\dem
os\GUI\AppClockDemo1\libs\armeabiProject: Executing command before:
Successbefore build...Compile Project, OS: android, CPU: arm, Target:
C:\lamw_manager\LAMW\lazandroidmodulewizard\demos\GUI\AppClockDemo1\li
bs\armeabi\libcontrols.so: Exit code 1, Errors: 1Fatal: Cannot find
system used by controls. Make sure all ppu files of a package are in
its output directory. ppu in wrong
directory=C:\lamw_manager\LAMW\LAMW4Windows\fpc\3.2.0\units\arm-
android\rtl\system.ppu..Exception, Errors: 1Fatal: [Exception] Failed:
Cannot build project

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nicelybrewed · 2025-08-11 06:04

Check that the project is set to the correct chipset to match your
device, it looks like it's set to ARMv6, most likely needs to be
Aaarch64 or ARMv7a+VFPv3 depending on your device, in Project Options
> [LAMW] Android Project Options > Build.

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Lazarinr · 2025-08-11 11:53

Thanks for your help, @nicelybrewed.

I did as you suggested and it fixed the error, but now it displays
another error.

Code: Pascal  [Select][+][-]window.onload = function(){var x1 =
document.getElementById("main_content_section"); if (x1) { var x =
document.getElementsByClassName("geshi");for (var i = 0; i Messages,
Hints: 2Verbose: Selected chip architecture: armeabiVerbose: Taking
libraries from folder: C:\lamw_manager\LAMW\lazandroidmodulewizard\dem
os\GUI\AppClockDemo1\libs\armeabiNote: Duplicate unit "controls" in
"controls", orphaned ppu "C:\lamw_manager\LAMW\lazandroidmodulewizard\
demos\GUI\AppClockDemo1\obj\controls\controls.o"Note: Duplicate unit
"controls" in "LCLBase 3.8",
ppu="C:\lamw_manager\LAMW\LAMW4Windows\lazarus_trunk\lcl\units\arm-
android\controls.ppu", source="C:\lamw_manager\LAMW\LAMW4Windows\lazar
us_trunk\lcl\controls.pp"Project: Executing command before:
Successbefore build...Compile Project, OS: android, CPU: arm, Target:
C:\lamw_manager\LAMW\lazandroidmodulewizard\demos\GUI\AppClockDemo1\li
bs\armeabi-v7a\libcontrols.so: SuccessProject: Executing command
after: Successafter build...Building APK (Gradle)... : FAILURE: Build
failed with an exception., Errors: 1Fatal: FAILURE: Build failed with
an exception.* What went wrong:Execution failed for task
':processDebugMainManifest'.> Manifest merger failed :
android:exported needs to be explicitly specified for element
<activity#com.example.appclockdemo1.App>. Apps targeting Android 12
and higher are required to specify an explicit value for
`android:exported` when the corresponding component has an intent
filter defined. See
https://developer.android.com/guide/topics/manifest/activity-
element#exported for details.* Try:> Run with --stacktrace option to
get the stack trace.> Run with --debug option to get more log output.>
Run with --scan to get full insights.> Get more help at
https://help.gradle.org.Deprecated Gradle features were used in this
build, making it incompatible with Gradle 9.0.You can use '--warning-
mode all' to show the individual deprecation warnings and determine if
they come from your own scripts or plugins.For more on this, please
refer to https://docs.gradle.org/8.5/userguide/command_line_interface.
html#sec:command_line_warnings in the Gradle documentation.BUILD
FAILED in 6s15 actionable tasks: 15 executedWatched directory
hierarchies: [C:\lamw_manager\LAMW\lazandroidmodulewizard\demos\GUI\Ap
pClockDemo1]Exception, Errors: 1Fatal: [Exception] Failed: Cannot
build APK!

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nicelybrewed · 2025-08-11 12:31

This is because the demos were created prior to Android 12, and LAMW I
defaults to targeting a higher API than Android 12,  you could also
reduce the 'Target SDK Version' to 30 (Android 11) for testing....or
amend your demo, like below:

The Androidmanifest.xml file in the root of that demo needs adjusted
slightly to include the android:exported option in the activity
element like:

Code: Pascal  [Select][+][-]window.onload = function(){var x1 =
document.getElementById("main_content_section"); if (x1) { var x =
document.getElementsByClassName("geshi");for (var i = 0; i    
<activity android:name="com.example.appclockdemo1.App"
android:label="@string/app_name" android:configChanges="orientation|ke
yboardHidden|screenSize|screenLayout|fontScale"
android:exported="true">
Notice android:exported="true" has been added to the end of this line,

It should compile/run after that change, you may find other demos are
the same.

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Lazarinr · 2025-08-11 13:01

Solved!

Thanks for the contribution @nicelybrewed.

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nicelybrewed · 2025-08-11 13:05

No worries.