Develop Reference

Android - Copy build output to another folder with Gradle

I am trying to build my React Native Android app on Visual Studio App Center and I get this error:
Task : Shell script
Description : Run a shell script using Bash
Version : 2.165.0
Author : Microsoft Corporation
Help : https://learn.microsoft.com/azure/devops/pipelines/tasks/utility/shell-script
==============================================================================
[command]/bin/bash /Users/runner/runners/2.165.2/scripts/android-postprocess.sh /Users/runner/runners/2.165.2/work/1/s/mobile/android/app/app/build/outputs/apk
Removing all ABI or density dependent APKs…
find: /Users/runner/runners/2.165.2/work/1/s/mobile/android/app/app/build/outputs/apk: No such file or directory
find: /Users/runner/runners/2.165.2/work/1/s/mobile/android/app/app/build/outputs/apk: No such file or directory
find: /Users/runner/runners/2.165.2/work/1/s/mobile/android/app/app/build/outputs/apk: No such file or directory
Found 0 APK file(s)
Found 0 unaligned APK file(s)
find: /Users/runner/runners/2.165.2/work/1/s/mobile/android/app/app/build/outputs/apk: No such file or directory
/Users/runner/runners/2.165.2/scripts/android-postprocess.sh: line 36: pushd: /Users/runner/runners/2.165.2/work/1/s/mobile/android/app/app/build/outputs/apk/..: No such file or directory
/Users/runner/runners/2.165.2/scripts/android-postprocess.sh: line 43: popd: directory stack empty
##[error]The process '/bin/bash' failed with exit code 1
##[error]Bash failed with error: The process '/bin/bash' failed with exit code 1
##[section]Finishing: Android Postprocess
##[section]Starting: Post Build Script
It's incorrectly looking for my APK in the app/app/build/... instead of app/build/...So I want to copy the files to app/app/build/.. so it finds them there.
I can't copy the files with a post-build script because it runs after the script that throws the error.
Is it possible to somehow achieve copying with Gradle? Or maybe have multiple build paths? Or some other solution?

The problem was that I had gradlew, gradlew.bat and gradle folder in my appmodule folder. I must have mistakenly opened the app folder alone in Android Studio and synced the project.
I solved it by creating a fresh React Native project.

Gradle not finding updated NDK path & project directory

I moved my Android SDK (and NDK) when my hard drive failed.
In my working project, I updated local.properties to reflect these changes in the variables ndk.dir and sdk.dir, yet when I run ./gradlew clean --info on the command line from within my project directory, gradle gives me a failure at the following command:
<old_ndk_path>/ndk-build NDK_PROJECT_PATH=null APP_BUILD_SCRIPT=<oldprojdir>/app/src/main/jni/Android.mk APP_ABI=armeabi NDK_ALL_ABIS=armeabi NDK_DEBUG=1 APP_PLATFORM=android-23 NDK_OUT=<oldprojdir>/app/build/intermediates/ndkBuild/debug/obj NDK_LIBS_OUT=<oldprojdir>/app/build/intermediates/ndkBuild/debug/lib clean
It's no wonder that the task fails, since no executable exists at that path now, but how can I get gradle to make use of the new NDK path? And how can I make it use the new project directory?

Delete the <projdir>/.gradle directory and try again.

Android Error: Failed to find 'ANDROID_HOME' environment variable

I just started Android development with ionic framework on Linux (Ubuntu).
I successfully created my ionic project using the command:
sudo ionic start demo blank
Now to add the android platform to the project, I ran the command:
sudo ionic platform add android
And this is the result it gave me:
function bold() { [native code] } https://github.com/driftyco/ionic-default-resources/archive/master.zip
[=============================] 100% 0.0s
Adding android project...
Creating Cordova project for the Android platform:
Path: platforms/android
Package: com.ionicframework.demo504884
Name: demo
Activity: MainActivity
Android target: android-24
Subproject Path: CordovaLib
Android project created with cordova-android#6.0.0
ls: no such file or directory: /home/awa/Desktop/mobile/demo/res/mipmap-*
Installing "cordova-plugin-console" for android
Failed to install 'cordova-plugin-console':CordovaError: Failed to find 'ANDROID_HOME' environment variable. Try setting setting it manually.
Failed to find 'android' command in your 'PATH'. Try update your 'PATH' to include path to valid SDK directory.
at /home/awa/Desktop/mobile/demo/platforms/android/cordova/lib/check_reqs.js:222:19
at _fulfilled (/home/awa/Desktop/mobile/demo/platforms/android/cordova/node_modules/q/q.js:834:54)
at self.promiseDispatch.done (/home/awa/Desktop/mobile/demo/platforms/android/cordova/node_modules/q/q.js:863:30)
at Promise.promise.promiseDispatch (/home/awa/Desktop/mobile/demo/platforms/android/cordova/node_modules/q/q.js:796:13)
at /home/awa/Desktop/mobile/demo/platforms/android/cordova/node_modules/q/q.js:857:14
at runSingle (/home/awa/Desktop/mobile/demo/platforms/android/cordova/node_modules/q/q.js:137:13)
at flush (/home/awa/Desktop/mobile/demo/platforms/android/cordova/node_modules/q/q.js:125:13)
at _combinedTickCallback (internal/process/next_tick.js:67:7)
at process._tickCallback (internal/process/next_tick.js:98:9)
Error: Failed to find 'ANDROID_HOME' environment variable. Try setting setting it manually.
Failed to find 'android' command in your 'PATH'. Try update your 'PATH' to include path to valid SDK directory.
At first I doubted if it had successfully added the android platform so I ran the same command again (sudo platform add android) and it said platform already existed.
Now seeing the last section of the error, I set the ANDROID_HOME environment variable by putting this code at the end of my .bashrc file located my home directory.
export ANDROID_HOME=/home/awa/Android/Sdk
export PATH=$PATH:/home/awa/Android/Sdk/tools
export PATH=$PATH:/home/awa/Android/Sdk/platform-tools
I saved the file. In order to build my project, I ran the command:
sudo ionic build android
and it gave the error:
add to body class: platform-android
Error: Failed to find 'ANDROID_HOME' environment variable. Try setting setting it manually.
Failed to find 'android' command in your 'PATH'. Try update your 'PATH' to include path to valid SDK directory.
I verified again to make sure I had succeeded in setting the ANDROID_HOME environment variable correctly. So in the Command line I ran the command echo $ANDROID_HOME and it gave as output:
/home/awa/Android/Sdk
...which is the right directory for my SDK.
I have tried other solutions like setting the environment variables in the .profile file but nothing changed.
Now I am suspecting the problem may have something to do with my sdk version though I'm not entirely sure.
What am I doing wrong, or what I'm I missing?

tensorflow build fails with “BUILD file not found on package”

I trying build tensorflow_demo for android with Bazel, but I get this error:
ERROR: no such package 'tensorflow/tensorflow/examples/android': BUILD file not found on package path.
I have build file in directory (MacOS):
/Users/pavelgosteev/tensorflow/tensorflow/examples/android
build command:
(tensorflow) MBP-Pavel:tensorflow pavelgosteev$ bazel build //tensorflow/tensorflow/examples/android:tensorflow_demo
What's wrong? Why can't Bazel see build file?

I think you need one fewer "tensorflow" in the build target name. Try:
bazel build //tensorflow/examples/android:tensorflow_demo
Further instructions can be found in the Tensorflow Android tutorial.

how to create a build file to build mono android project and generate myproject.apk file.?

I have a mono android project. I can use monodevelop to build the apk of my project. But I want to write a build file (like we do using ANT) with targets that can generate the .apk file.
Please point me to the right direction.
I have figured out the we need to use mandroid.exe to generate .apk from the .dll.
the log shows that there is a target called _Manddroid that monodevelop's build tool runs. This target in turn runs following command
C:\Program Files\MSBuild\Novell\mandroid.exe -v --nosign --sdk-dir="C:\Android\android-sdk" --builddir="C:\Users\Sikha\Documents\Projects\helloShikha\helloShikha\obj\Debug\android" --framework-dir="C:\Program Files\Reference Assemblies\Microsoft\Framework\MonoAndroid\v2.2" --framework-dir="C:\Program Files\Reference Assemblies\Microsoft\Framework\MonoAndroid\v1.0" -S="C:\Users\Sikha\Documents\Projects\helloShikha\helloShikha\obj\Debug\res" --package="helloShikha.helloShikha" --nolink --abi="armeabi" --java-sdk-dir="C:\Program Files\Java\jdk1.6.0_30" --debug --sdk-platform="8" "C:\Users\Sikha\Documents\Projects\helloShikha\helloShikha\bin\Debug\helloShikha.dll" "C:\Program Files\Reference Assemblies\Microsoft\Framework\MonoAndroid\v2.2\Mono.Android.dll" "C:\Program Files\Reference Assemblies\Microsoft\Framework\MonoAndroid\v1.0\mscorlib.dll" "C:\Program Files\Reference Assemblies\Microsoft\Framework\MonoAndroid\v1.0\System.Core.dll" "C:\Program Files\Reference Assemblies\Microsoft\Framework\MonoAndroid\v1.0\System.dll" "C:\Program Files\Reference Assemblies\Microsoft\Framework\MonoAndroid\v1.0\System.Xml.dll"
When I try to copy paste the above command on cmd nothing happens. Any Idea what I am missing here?

I used following command and it generated the .apk file for me.
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe myproject.csproj /t:Package
I tried using .sln file but was receiving an error : target Package does not exist in the project.
I opened the myproject.csproj file and figured out that this file imports Novell.MomoDroid.CSharp.Targets which in turn imports the Novell.MonoDroid.Common.Targets
The target "Package" is present in the file Novell.MonoDroid.Common.Targets.

Why do you want to write alternative targets? The Mono for Android project files are MSBuild-based, and MSBuild is Microsoft's equivalent of ant. This means the csproj files are already fully extensible and customizable, and can be built using the commandline MSBuild tool:
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe YourSolution.sln