Unspecified version in 1.8.4

[mortezahosseinee]

Hi, i upload a bintray library and then publish it. this is url that bintray give it to me:

'MapirServiceTest:mapirservice:unspecified'

why?

Here is my code:

install {
repositories.mavenInstaller {
// This generates POM.xml with proper parameters
pom {
project {
packaging 'aar'
// Add your description here
name '... ... SDK for Android'
url siteUrl
groupId properties.getProperty('GROUPID')
artifactId properties.getProperty('ARTIFACT')
version properties.getProperty('VERSION_NAME')

        // Set your license
        licenses {
            license {
                name 'The Apache Software License, Version 2.0'
                url 'http://www.apache.org/licenses/LICENSE-2.0.txt'
            }
        }
        developers {
            developer {
                id '...'
                name '...'
                email '...'
            }
        }
        scm {
            connection gitUrl
            developerConnection gitUrl
            url siteUrl
        }
    }
}

}

}

bintray {
user = properties.getProperty("bintrayUser")
key = properties.getProperty("bintrayApiKey")

configurations = ['archives']

pkg {
repo = properties.getProperty('REPO')
name = properties.getProperty('GROUPID')
userOrg = properties.getProperty('USERORG')
licenses = ['Apache-2.0']
vcsUrl = 'https://github.com/bintray/gradle-bintray-plugin.git'
version {
name = properties.getProperty('VERSION_NAME')
desc = properties.getProperty('VERSION_DESC')

    vcsTag = '0.1'
    attributes = ['gradle-plugin': 'com.use.less:com.use.less.gradle:gradle-useless-plugin']
}

}

}

task androidJavadocs(type: Javadoc) {
source = android.sourceSets.main.java.sourceFiles
classpath = files(android.bootClasspath)
failOnError false
}

task androidJavadocsJar(type: Jar, dependsOn: androidJavadocs) {
classifier = 'javadoc'
from androidJavadocs.destinationDir
}

task androidSourcesJar(type: Jar) {
classifier = 'sources'
from android.sourceSets.main.java.sourceFiles
}

artifacts {
archives androidSourcesJar
archives androidJavadocsJar
}