gradlew bintrayUpload命令不会将文件上载到文件托盘

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.jfrog.bintray.gradle:gradle-bintray-plugin:<version>'
    }
}

apply plugin: 'com.jfrog.bintray'

bintray.user=<your_bintray_username>
bintray.apikey=<your_bintray_api_key>
bintray.pkg.repo=<your_bintray_repository_name>

bintray {
    user = project.property('bintray.user')
    key = project.property('bintray.apikey')
    pkg {
        repo = project.property('bintray.pkg.repo')
        name = '<your_library_name>'
        desc = '<your_library_description>'
        licenses = ['<your_license>']
        vcsUrl = '<your_vcs_url>'
        websiteUrl = '<your_website_url>'
        issueTrackerUrl = '<your_issue_tracker_url>'
    }
}