Java – Android Maven does not start the simulator
•
Java
When I right-click My Android project and select run – > Android application The simulator is started and the changes are actually reflected
But when I execute the following command, it does not reflect
mvn clean install mvn android:deploy mvn android:emulator-start
More, if the emulator is not opened, the deploy and emulator start commands will fail Found 0 devices connected to Android debug bridge
[ERROR] Failed to execute goal com.jayway.maven.plugins.android.generation2:andr
oid-maven-plugin:3.3.0:deploy (default-cli) on project SampleProject: No online de
vices attached. -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal c
om.jayway.maven.plugins.android.generation2:android-maven-plugin:3.3.0:deploy (d
efault-cli) on project SampleProject: No online devices attached.
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor
.java:217)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor
.java:153)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor
.java:145)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProje
ct(LifecycleModuleBuilder.java:84)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProje
ct(LifecycleModuleBuilder.java:59)
at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBu
ild(LifecycleStarter.java:183)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(Lifecycl
eStarter.java:161)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:320)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Laun
cher.java:290)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.jav
a:230)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(La
uncher.java:409)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:
352)
Caused by: org.apache.maven.plugin.MojoExecutionException: No online devices att
ached.
at com.jayway.maven.plugins.android.AbstractAndroidMojo.doWithDevices(Ab
stractAndroidMojo.java:625)
at com.jayway.maven.plugins.android.AbstractAndroidMojo.deployApk(Abstra
ctAndroidMojo.java:527)
at com.jayway.maven.plugins.android.AbstractAndroidMojo.deployBuiltApk(A
bstractAndroidMojo.java:570)
at com.jayway.maven.plugins.android.standalonemojos.DeployMojo.execute(D
eployMojo.java:48)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(Default
BuildPluginManager.java:101)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor
.java:209)
... 19 more
[ERROR]
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions,please rea
d the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionE
xception
This is my android Maven plugin emulator start VBS file
Dim oShell
Set oShell = WScript.CreateObject("WScript.shell")
oShell.run "C:\Windows\system32\cmd.exe /X /C START /SEPARATE ""AndroidMavenPlugin-AVDDefault"" D:\SDK\tools\emulator.exe -avd Default"
This is my POM XML
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.sample</groupId>
<artifactId>SampleProject</artifactId>
<version>1.0</version>
<packaging>apk</packaging>
<name>SampleProject</name>
<properties>
<platform.version>2.3.3</platform.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>com.google.android</groupId>
<artifactId>android</artifactId>
<version>${platform.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.googlecode.androidannotations</groupId>
<artifactId>androidannotations</artifactId>
<version>2.5.1</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>com.googlecode.androidannotations</groupId>
<artifactId>androidannotations</artifactId>
<classifier>api</classifier>
<version>2.5.1</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>com.jayway.maven.plugins.android.generation2</groupId>
<artifactId>android-maven-plugin</artifactId>
<version>3.3.2</version>
<configuration>
<sdk>
<!-- platform or api level (api level 4 = platform 1.6) -->
<platform>16</platform>
<path>${env.ANDROID_HOME}/</path>
</sdk>
<emulator>
<avd>21</avd>
<options>-no-skin</options>
</emulator>
<undeployBeforeDeploy>false</undeployBeforeDeploy>
</configuration>
<extensions>true</extensions>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.5.1</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
</plugins>
</build>
</project>
Solution
Before running MVN Android: emulator start, MVN Android: deploy The Maven plug - in cannot be deployed to a non - existent simulator You must also wait for the emulator to start before deployment
Use the ADB device to check for active Android devices connected to your computer
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