Gradle 无法解决 sikulixapi

Question

I'm trying to change my project from Maven to Gradle and I have problem with some dependencies.

here is my build.gradle file:

plugins {
    id 'java'
}

group 'de.myurl.test'
version '1.0-SNAPSHOT'

sourceCompatibility = 1.8

repositories {
    jcenter()
    maven {
        url 'https://repo.spring.io/snapshot/'
    }
}

dependencies {
    testCompile group: 'junit', name: 'junit', version: '4.12'
    compile group: 'jxgrabkey', name: 'jxgrabkey', version: '1.0'
    compile 'org.seleniumhq.selenium:selenium-server:3.9.1'
    compile 'net.java.dev.jna:jna-platform:4.0.0'
    compile 'log4j:log4j:1.2.17'
    compile 'com.sikulix:sikulixapi:1.1.0'
    compile 'net.java.dev.jna:jna:5.4.0'
    compile 'com.relevantcodes:extentreports:2.41.0'
    compile 'commons-io:commons-io:2.6'
    compile 'javax.activation:activation:1.1.1'
    compile 'com.sun.xml.ws:policy:2.3.1'
    compile 'com.sun.jmx:jmxri:1.2.1'
    compile 'javax.mail:mail:1.4'
    compile 'com.uttesh:pdfngreport:2.1.3'
    compile 'org.uncommons:reportng:1.1.4'
    compile 'org.testng:testng:7.0.0'
}

and here is the problem with the dependencies:

I also tried to use other versions of sikuli but that didn't work either. is it possible that this problem is related to the structure of my project?

I really appreciate any helps:)

Answer 1

As you have shown in the screenshot, Gradle tries to resolve a dependency called com.sikulix:${sikulix.libs}:1.1.0 . Of cause, there is a place holder here called ${sikulix.libs} that hasn't been substituted.

The place holder is actually defined in a Maven profile in the pom file for sikuli . The relevant parts are these:

<profiles>
    <profile>
        <id>Windows</id>
        <activation>
            <os>
                <family>windows</family>
            </os>
        </activation>
        <properties>
            <sikulix.libs>sikulixlibswin</sikulix.libs>
        </properties>
    </profile>
    <profile>
        <id>Unix</id>
        <activation>
            <os>
                <family>unix</family>
            </os>
        </activation>
        <properties>
            <sikulix.libs>sikulixlibslux</sikulix.libs>
        </properties>
    </profile>
    <profile>
        <id>Mac</id>
        <activation>
            <os>
                <family>mac</family>
            </os>
        </activation>
        <properties>
            <sikulix.libs>sikulixlibsmac</sikulix.libs>
        </properties>
    </profile>
</profiles>
<!-- ... -->
<dependency>
    <groupId>com.sikulix</groupId>
    <artifactId>${sikulix.libs}</artifactId>
    <version>${project.version}</version>
</dependency>

Unfortunately, Gradle doesn't support Maven profiles so you have to create a substitution rule yourself to fix it. You can do it like this:

configurations.all {
    resolutionStrategy.eachDependency { DependencyResolveDetails details ->
        if (details.requested.name == '${sikulix.libs}') {
            def os = org.gradle.internal.os.OperatingSystem.current()
            def targetName
            if (os.isWindows()) {
                targetName = 'sikulixlibswin'
            } else if (os.isUnix()) {
                targetName = 'sikulixlibslux'
            } else if (os.isMacOsX()) {
                targetName = 'sikulixlibsmac'
            } else {
                throw new GradleException("Unknow operating system for determining the sikulix distribution")
            }
            details.useTarget group: details.requested.group, name: targetName, version: details.requested.version
            details.because 'The Maven dependency is relying on profiles to select the correct module name for the current operating system'
        }
    }
}

If you are using version 1.1.0, you may also have to define an additional Maven repository for one of the transitive dependencies called jxgrabkey . This repository is also defined in the pom, but will not be automatically used by Gradle. You can add it like this:

repositories {
    maven {
        url = 'http://mvn.is.inf.uni-due.de:8081/nexus/content/repositories/atunes-dependencies/'
    }
}

But if you upgrade to the latest 1.1.1, this will not be necessary.

Answer 2

try adding additional maven repo:

repositories {
    jcenter()
    mavenCentral()
    maven {
        url 'https://repo.spring.io/snapshot/'
    }
}

And add grouping for sikuli

dependencies {
    compile group: 'org.sikuli', name: 'sikuli-api', version: '1.1.0'
}

Answer 3

Maven has also an id to be converted:

<dependencies>
    <dependency>
        <groupId>testName</groupId>
        <artifactId>testName</artifactId>
        <version>1.1.1</version>
    </dependency>
</dependencies>

will be converted to Gradle with this notation:

dependencies {
    implementation 'testName:testName:1.1.1' 
}

Also try to use implementation instead of compile. after 2018 is deprecated syntax.

If build is not succeeded from this change try instead of implementation to use api as declaration. ex. api 'com.sikulix:sikulixapi:1.1.0'

After all it is a good choice to update library if applicable.

Hope that helps you!

Answer 4

It works for me this way

dependencies {
    ... 
    compile files('sikulifolder/sikulixapi.jar')
    ...
}

sikulifolder - is a folder with jar in my project directory. And don't forget that the dependencies order is important. I set it before the last selenium dependencies for example.