Develop Reference

Flutter won't compile on ios nor android. Empty project wont compile

Soo... everything worked fine then after taking a break from work apps wont run.
New or empty project it does not matter.
Flutter doctor says everything is fine.
Here is Debug console.
Launching lib/main.dart on iPhone 14 Pro Max in debug mode...
lib/main.dart:1
Xcode build done. 3.8s
Failed to build iOS app
Error output from Xcode build:
↳
** BUILD FAILED **
Xcode's output:
↳
Writing result bundle at path:
/var/folders/bm/_wgnp7b94l78gc2g88cq3kbc0000gn/T/flutter_tools.MW6UxN/flutter_ios_build_temp_dirktvpW1/temporary_xcresult_bundle
/Applications/flutter/packages/flutter/lib/src/widgets/ticker_provider.dart:186:7: Error: 'ethrow' isn't a type.
ethrow FlutterError.fromParts(<DiagnosticsNode>[
^^^^^^
/Applications/flutter/packages/flutter/lib/src/widgets/ticker_provider.dart:186:14: Error: Expected ';' after this.
ethrow FlutterError.fromParts(<DiagnosticsNode>[
^^^^^^^^^^^^
/Applications/flutter/packages/flutter/lib/src/widgets/ticker_provider.dart:186:26: Error: Expected an identifier, but got '.'.
Try inserting an identifier before '.'.
ethrow FlutterError.fromParts(<DiagnosticsNode>[
^
/Applications/flutter/packages/flutter/lib/src/widgets/ticker_provider.dart:195:6: Error: A value of type 'bool?' can't be assigned to a variable of type 'bool' because 'bool?' is nullable and 'bool' isn't.
}());
^
Failed to package /Users/stankoo003/minimal_design.
Command PhaseScriptExecution failed with a nonzero exit code
note: Building targets in dependency order
warning: Run script build phase 'Thin Binary' will be run during every build because it does not specify any outputs. To address this warning, either add output dependencies to the script phase, or configure it to run in every build by unchecking "Based on dependency analysis" in the script phase. (in target 'Runner' from project 'Runner')
warning: Run script build phase 'Run Script' will be run during every build because it does not specify any outputs. To address this warning, either add output dependencies to the script phase, or configure it to run in every build by unchecking "Based on dependency analysis" in the script phase. (in target 'Runner' from project 'Runner')
Result bundle written to path:
/var/folders/bm/_wgnp7b94l78gc2g88cq3kbc0000gn/T/flutter_tools.MW6UxN/flutter_ios_build_temp_dirktvpW1/temporary_xcresult_bundle
Could not build the application for the simulator.
Error launching application on iPhone 14 Pro Max.
Exited
flutter doctor, empty projects..

This shows a problem in Flutter's TickerProvider class.
It might be a version problem. Try flutter upgrade.
Clean your project flutter clean then flutter pub get and try building again.

Node.js process with a non-zero exit code [duplicate]

I am new to cordova and am trying to create an android HelloWold project.
When I use cordova platforms add android, it throws some exception:
D:\CordovaSpace\helloWorld>cordova platforms add android
Adding android project...
Creating Cordova project for the Android platform:
Path: platforms\android
Package: com.example.helloworld
Name: HelloWorld
Activity: MainActivity
Android target: android-24
Subproject Path: CordovaLib
Android project created with cordova-android#6.0.0
Installing "cordova-plugin-whitelist" for android
ANDROID_HOME=D:\Java_Android_SDK\android_sdk
JAVA_HOME=C:\Program Files (x86)\Java\jdk1.8.0_73
Subproject Path: CordovaLib
Starting a new Gradle Daemon for this build (subsequent builds will be faster).
FAILURE: Build failed with an exception.
* What went wrong:
Unable to start the daemon process.
This problem might be caused by incorrect configuration of the daemon.
For example, an unrecognized jvm option is used.
Please refer to the user guide chapter on the daemon at https://docs.gradle.org/2.14.1/userguide/gradle_daemon.html
Please read the following process output to find out more:
-----------------------
Error occurred during initialization of VM
Could not reserve enough space for 2097152KB object heap
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
Failed to install 'cordova-plugin-whitelist':Error: cmd: Command failed with exit code 1
at ChildProcess.whenDone (D:\CordovaSpace\helloWorld\platforms\android\cordova\node_modules\cordova-common\src\superspawn.js:169:23)
at emitTwo (events.js:106:13)
at ChildProcess.emit (events.js:191:7)
at maybeClose (internal/child_process.js:850:16)
at Process.ChildProcess._handle.onexit (internal/child_process.js:215:5)
Error: cmd: Command failed with exit code 1

Try again after increasing your Java VM(?) memory size.
Here is how to fix it on a Windows platform:
Go to Start -> Control Panel -> System -> Advanced(tab) -> Environment Variables -> System Variables -> New:
Variable name: _JAVA_OPTIONS
Variable value: -Xmx512M
Don't ignore the score and underscore characters.

I had the exact same problem. I switched to use 64-bit JDK as suggested in here and it worked fine. I was using Ionic 3.5.0 on Windows 10.

this worked for my ionic app.
Change line on
// to allow dex in process
'org.gradle.jvmargs': '-Xmx1024m',
from
// to allow dex in process
'org.gradle.jvmargs': '-Xmx2048m',
in your
<app path>\platforms\android\cordova\lib\config
thanks

args.push('-Dorg.gradle.jvmargs=-Xmx2048m')
into
args.push('-Dorg.gradle.jvmargs=-Xmx1024m');
on the following location files.
project-folder\platforms\android\cordova\lib\builders\GradleBuilder.js
project-folder\platforms\android\cordova\lib\builders\StudioBuilder.js

Go to : \platforms\android\cordova\lib\config\GradlePropertiesParser.js
constructor (platformDir) {
this._defaults = {
// 10 seconds -> 6 seconds
'org.gradle.daemon': 'true',
// to allow dex in process
'org.gradle.jvmargs': '-Xmx2048m',
// allow NDK to be used - required by Gradle 1.5 plugin
'android.useDeprecatedNdk': 'true'
// Shaves another 100ms, but produces a "try at own risk" warning. Not worth it (yet):
// 'org.gradle.parallel': 'true'
};
And change the 'org.gradle.jvmargs': '-Xmx2048m', to 'org.gradle.jvmargs': '-Xmx1024m',

args.push('-Dorg.gradle.jvmargs=-Xmx2048m')
to
args.push('-Dorg.gradle.jvmargs=-Xmx1024m');
on the following location files.
project-folder\platforms\android\cordova\lib\builders\builders.js
project-folder\platforms\android\cordova\lib\builders\GradleBuilder.js
project-folder\platforms\android\cordova\lib\builders\StudioBuilder.js

Go to Start -> Control Panel -> System -> Advanced(tab) -> Environment Variables -> System Variables
Add/change JAVA_HOME value
from C:\Program Files (x86)\Java\jdk1.8.0_192
to C:\Program Files\Java\jdk1.8.0_192
That is, change from Program Files (x86) path to Program Files path.

I had a same problem.
Anyway, here is how to fix it:
Go to Start->Control Panel->System->Advanced(tab)->Environment Variables->System Variables->New:
Variable name: _JAVA_OPTIONS
Variable value: -Xmx512M
if 512 not work then change it to.
Variable value: -Xmx1024M
And also change the path.
Variable name: Path
Variable value: ;C:\Program Files\Java\jre6\bin;F:\JDK\bin;
Change this to your appropriate path.

Setting the environment variable at system level as in the #kemal's solution will set the memory size for all the JVM applications in the system, which is not a what most would want to do.
Instead, set the heap size in your cordova gradlebuilder property file.
args.push('-Dorg.gradle.jvmargs=-Xmx2048m');

After upgrading Gradle to v2.8 Travis doesn't pass Findbugs

I just updated my gradle from version 2.2 to latest one 2.8. I didn't have any issue with findbugs on version 2.2.
I'm working on an Android project that contains two modules. In order to use find bugs in both modules I have following configuration on main build.gradle file of root directory.
configure(allprojects) {
apply plugin: 'findbugs'
task findbugs(type: FindBugs) {
ignoreFailures = false
effort = "max"
classes = fileTree('build/intermediates/classes/')
source = fileTree('src/main/java')
classpath = files()
excludeFilter = file("exclude.xml")
reportLevel = "high"
reports {
xml.enabled = false
html.enabled = true
}
}
}
When I run ./gradlew findbugs on my local machine everything is fine and build is successful however when I push my PR to Github and Trivis tries to build then I get error:
:findbugs UP-TO-DATE
:passenger-app:findbugs
:passenger-sdk:findbugs FAILED
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':passenger-sdk:findbugs'.
> FindBugs rule violations were found. See the report at: file:///home/travis/build/project-name/passenger-android/passenger-sdk/build/reports/findbugs/findbugs.html
I'm really confused why I have no problem on my local machine while Travis shows error! I tried to print out the contents findbugs.html on Travis but I got permission denied :(
I'm using java 1.8 while Travis is using 1.7. Does problem relates to this? Thanks
Update:
In order to print the contents of findbugs.html on Trivis I created a print_findbugs.sh and this is its contents.
#!/usr/bin/env bash
echo '**********************'
echo '*** Print Findbugs ***'
echo '**********************'
echo file:///home/travis/build/company/passenger-android/passenger-sdk/build/reports/findbugs/findbugs.html
Then I set sudo true in my .travis.yml file. What I have in this file.
sudo: true
language: android
android:
components:
- build-tools-23.0.1
- android-23
- extra-android-support
- extra-google-google_play_services
- extra-google-m2repository
- extra-android-m2repository
env:
global:
// some settings are there
before_cache:
# Delete the gradle lock file which forces creation of a new build cache
- rm ~/.gradle/caches/modules-2/modules-2.lock
cache:
directories:
- ~/.gradle
before_script:
# Overwrite the keystore if it is a pull request
- ./before_script.sh
script:
# Override Travis default script to not run connectedCheck until this bug is fixed:
# https://code.google.com/p/android/issues/detail?id=59592
- ./gradlew clean build findbugs -PdisablePreDex
- ./print_findbugs.sh
before_deploy:
# Clean up the output folder
# Link up the new builds into individual html files
- ./before_deploy.sh
after_deploy:
# Upload to...
and finally my travis prints:
:findbugs UP-TO-DATE
:passenger-app:findbugs
:passenger-sdk:findbugs
FindBugs rule violations were found. See the report at: file:///home/travis/build/company/passenger-android/passenger-sdk/build/reports/findbugs/findbugs.html
BUILD SUCCESSFUL
Total time: 8 mins 9.966 secs
The command "./gradlew clean build findbugs -PdisablePreDex" exited with 0.
$ ./print_findbugs.sh
/home/travis/build.sh: line 41: ./print_findbugs.sh: Permission denied
The command "./print_findbugs.sh" exited with 126.
before_cache
$ rm ~/.gradle/caches/modules-2/modules-2.lock
cache.2
Done. Your build exited with 1.

I don't use it and I need more information about the permission denied.
Html reports
In the past, I printed html reports using Travis-ci, point 5 here. I downloaded lynx using apt-get (it's not possible now using container-infrastructure and sudo: false) and converted and printed the reports.
before_script:
# - echo 'LOGCAT'
# Check logcat debug output: http://developer.android.com/tools/help/logcat.html
# Check debugging log: http://developer.android.com/tools/debugging/debugging-log.html
# Comment the lines belows to debug output and redirect it to a file. Custom tags for your app.
- adb -e logcat *:W | tee logcat.log > /dev/null 2>&1 &
after_failure:
# - echo 'FAILURE'
# Check apt configuration: http://docs.travis-ci.com/user/ci-environment/#apt-configuration
# Comment out the lines below to show log about tests with app name customized on exports section.
- sudo apt-get install -qq lynx
- export MOD_NAME=yourappmodulename
- export LOG_DIR=${TRAVIS_BUILD_DIR}/${MOD_NAME}/build/outputs/reports/androidTests/connected/
- lynx --dump ${LOG_DIR}com.android.builder.testing.ConnectedDevice.html > myConnectedDevice.log
- lynx --dump ${LOG_DIR}com.android.builder.testing.html > myTesting.log
- for file in *.log; do echo "$file"; echo "====================="; cat "$file"; done || true
Xml reports
Can be used in both, legacy and container based infrastructure.
I read you can enable xml reports like this:
reports {
xml.enabled = true
html.enabled = true
}
You can easily print xml reports on Travis-ci using cat like here:
- cat ${TRAVIS_BUILD_DIR}/ui/espresso/*/app/build/outputs/androidTest-results/connected/* # logs
Adding * will include all the subfolders at this point.
You need to first find locally the folder for the xml reports, in my case is not the same folder than html, and add to your travis.yml file something like this:
after_failure:
- cat /home/travis/build/*/passenger-android/passenger-sdk/build/reports/findbugs/*
This doesn't solve your issue but perhaps helps to find reason.
Update:
I suggest you to try to use cat and the xml version without the script first.
A good explanation about the permission issue here and how to solve it making the file executable:
before_script:
- chmod +x yourscript
Update 2:
A better approach to fix the permission denied issue explained here.
Use this and commit the changes:
git update-index --chmod=+x yourscript

In my case, ignoreFailures was true, but nevertheless the findbugs task was failing after upgrading gradle because build.gradle was depending on findbugs:annotations:3.0.0 instead of findbugs:findbugs-annotations:3.0.1. (Note: annotations vs. findbugs-annotations, which is a new artifact.

Finally I was able to get everything passed.
I first used following command rather than simple $ ./gradlew findbugs.
./gradlew clean aGD findbugs -PdisablePreDex
aGD is abbreviation of my task something like assembleDebug.
I could see a lot of complains by gradle. Probably Travis was showing this (afterDebug) but since it prints html page in console is not human readable. So I added filters into Findbug's exclude file (ref) in order to pass Findbugs check.
I was successful! Once I pushed my code, Travis failed again.
But since I printed out Findbug's output on Travis and there was only an issue I could find it in my code and Fix it. After that Travis didn't failed and passed my PR.
So the problem is still exist unfortunately. I can get Findbugs passed on my local project while Travis sometimes finds more issues. I'm suspicious that Travis is able to load recent versions of Findbugs but mine isn't able, due to cache things. But yes, this is my assumption!

Build Android project on command line on OSX: Task 'assembleDebug' not found in root project

I'm trying to build Android projects on the OSX (Mavericks 10.9.5) command line using this how-to: http://developer.android.com/tools/building/building-cmdline.html.
This How-To explains the use of assembleDebug/assembleRelease to build an Android project.
Unfortunately gradle doesn't create the assembleDebug or assembleRelease targets.
Executing ./gradlew assembleDebug returns this:
FAILURE: Build failed with an exception.
* What went wrong:
Task 'assembleDebug' not found in root project 'test'.
* Try:
Run gradlew tasks to get a list of available tasks. Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
BUILD FAILED
Total time: 2.826 secs
Steps:
android create project
The test project has been created with android create project --path . --name "DummyAPK" --target android-21 --package com.dummyapk.dummyapk --activity DummyActivity
which returned
Created directory /Users/user/Documents/test/src/com/dummyapk/dummyapk
Added file ./src/com/dummyapk/dummyapk/DummyActivity.java
Created directory /Users/user/Documents/test/res
Created directory /Users/user/Documents/test/bin
Created directory /Users/user/Documents/test/libs
Created directory /Users/user/Documents/test/res/values
Added file ./res/values/strings.xml
Created directory /Users/user/Documents/test/res/layout
Added file ./res/layout/main.xml
Created directory /Users/user/Documents/test/res/drawable-xhdpi
Created directory /Users/user/Documents/test/res/drawable-hdpi
Created directory /Users/user/Documents/test/res/drawable-mdpi
Created directory /Users/user/Documents/test/res/drawable-ldpi
Added file ./AndroidManifest.xml
Added file ./build.xml
Added file ./proguard-project.txt
gradle init
After that I executed gradle init, which returned
:wrapper
:init
BUILD SUCCESSFUL
gradlew tasks
Querying the available tasks with gradlew tasks returns (isn't there missing something?)
:tasks
------------------------------------------------------------
All tasks runnable from root project
------------------------------------------------------------
Build Setup tasks
-----------------
init - Initializes a new Gradle build. [incubating]
wrapper - Generates Gradle wrapper files. [incubating]
Help tasks
----------
components - Displays the components produced by root project 'test'. [incubating]
dependencies - Displays all dependencies declared in root project 'test'.
dependencyInsight - Displays the insight into a specific dependency in root project 'test'.
help - Displays a help message.
projects - Displays the sub-projects of root project 'test'.
properties - Displays the properties of root project 'test'.
tasks - Displays the tasks runnable from root project 'test'.
To see all tasks and more detail, run with --all.
BUILD SUCCESSFUL
Total time: 3.474 secs
My Java version is
java version "1.7.0_60"
Java(TM) SE Runtime Environment (build 1.7.0_60-b19)
Java HotSpot(TM) 64-Bit Server VM (build 24.60-b09, mixed mode)
..and Gradle version (installed via brew) is
------------------------------------------------------------
Gradle 2.2.1
------------------------------------------------------------
Build time: 2014-11-24 09:45:35 UTC
Build number: none
Revision: 6fcb59c06f43a4e6b1bcb401f7686a8601a1fb4a
Groovy: 2.3.6
Ant: Apache Ant(TM) version 1.9.3 compiled on December 23 2013
JVM: 1.7.0_60 (Oracle Corporation 24.60-b09)
OS: Mac OS X 10.9.5 x86_64
What am I missing to be able to build an Android project on the command line?

android create project does not create a gradle friendly structure. It creates an ant friendly structure. You have two options depending on your intentions.
use ant to build your project ( not currently supported by Android team )
use Android Studio to generate a gradle friendly project structure.
num 2 is the recommended approach by the Android team. It's as simple as dl'ing Android Studio and creating a new project. From there you should be able to create a new project that can be built with ./gradlew build

try This:
./android create project -p AppPAKTGV -a Main -k com.example.apppaktgv -t android-23 -g -v 0.11.+
it's works but when i try target 24 or 25 not work i don't now

Try to do this and note
a) you need to type tools/android under Step 3 (like step 2: Execute)
-- but as said the ant structure is not helpful
-- not sure I can go from there
b) I follow the advice and also ensure get the platform-tools
-- I can build
-- I can get that .apk
-- I can adb install (I rename any existing .apk)
Seems working!

Travis CI skip tests (Gradle Android project)

Now I'm configuring Travis CI for my Gradle-based Android project. Is it possible to temporary disable tests launch from Travis to just know - if project could be built or not?

By default, Travis-ci executes ./gradlew build connectedCheck if no script: section is found.
Failed tests are ignored if you add the next code to all your tested modules (build.gradle files).
project.gradle.taskGraph.whenReady {
connectedAndroidTest {
ignoreFailures = true
}
}
Another option is to skip the install stage and only to use ./gradlew build (or ./gradle build without gradle wrapper) so tests are not performed.
install:
# Check install section: http://docs.travis-ci.com/user/build-configuration/#install
# If you'd like to skip the install stage entirely, set it to true and nothing will be run.
- true
script:
# By default Travis-ci executes './gradlew build connectedCheck' if no 'script:' section found.
- ./gradlew build
You can use the -x command line argument which excludes any task (see this answer).
gradle build -x test

Check output of
./gradlew tasks
and then use:
./gradlew assemble
Like in this thread:
Gradle build without tests