okbuck fails with Gradle 5.1.1+ (Could not create symlink: FileAlreadyExistsException)

[anoopc1]

Exception Details (complete-stack-trace)

Could not create symlink /<repo>/.okbuck/ext/<module-path>/data-collector-3.4.0-sources.jar -> /<home>/.gradle/caches/modules-2/files-2.1/<module-path>/3.4.0/6f4575ecbe152398e73e6189cfa76a5a429391d2/data-collector-3.4.0-sources.jar

Caused by: java.lang.IllegalStateException: java.nio.file.FileAlreadyExistsException: /<repo>/.okbuck/ext/<module-path>/data-collector-3.4.0-sources.jar
        at com.uber.okbuck.core.util.FileUtil.symlink(FileUtil.java:124)
        at com.uber.okbuck.core.manager.DependencyManager.lambda$createSymlinks$22(DependencyManager.java:422)
        at com.uber.okbuck.core.manager.DependencyManager.lambda$createSymlinks$23(DependencyManager.java:420)
        at com.google.common.collect.ImmutableList.forEach(ImmutableList.java:407)
        at com.uber.okbuck.core.manager.DependencyManager.createSymlinks(DependencyManager.java:412)
        at com.uber.okbuck.core.manager.DependencyManager.lambda$processDependencies$20(DependencyManager.java:393)
        at com.uber.okbuck.core.manager.DependencyManager.processDependencies(DependencyManager.java:352)
        at com.uber.okbuck.core.manager.DependencyManager.finalizeDependencies(DependencyManager.java:102)
        at com.uber.okbuck.OkBuckGradlePlugin.lambda$apply$0(OkBuckGradlePlugin.java:192)

Setup:

okbuck: 0.48.7
AGP: 3.3.2
Gradle: 5.1.1

okbuck external dependency configuration:

okbuck {
  externalDependencies {
    downloadInBuck = false
    autoValueConfigurations = [ ...]
  }
  ...
}

moduleA/build.gradle

dependenices {
  api 'com.paypal.android.sdk:paypal-one-touch:3.4.0'
  ...
}
...

Steps to reproduce:
.\buckw root

[kageiit]

This should not longer be an issue with the latest okbuck. Please re-open if it happens on latest