Invalid bundle id when deploying package

I am attempting to deploy a package called vtest-plugin.zip but I'm getting the following error from the Extension Manager.

[2013-11-04 10:14:48.072] INFO  [INFO ] vc-service-pool-215          F2FD514D43FAF98FB01D7E82E2924C50 com.vmware.vise.vim.extension.VcExtensionManager                  Done downloading plugin package from https://mkesrv-vcvzip2b.pkware.com:34443/vzip/vtest-plugin.zip

[2013-11-04 10:14:48.072] INFO  [INFO ] vc-service-pool-215          F2FD514D43FAF98FB01D7E82E2924C50 com.vmware.vise.vim.extension.VcExtensionManager                  end writePackageToFile : com.pkware.vtest

[2013-11-04 10:14:48.494] ERROR [ERROR] vc-service-pool-215          F2FD514D43FAF98FB01D7E82E2924C50 com.vmware.vise.extensionfw.ExtensionManager                      The bundle id com.pkware.vzip.java.vzipdbservice specified in the plugin package C:\ProgramData\VMware\vSphere Web Client\vc-packages\vsphere-client-serenity\com.pkware.vtest-1.0.0 is invalid.

Check the bundle id or check the presence of a bundle with a matching id (i.e. the Bundle-SymbolicName in its MANIFEST.MF)

The plugin-package.xml is as follows

<?xml version="1.0" encoding="UTF-8"?>

<pluginPackage id="com.pkware.vtest" version="1.0.0" name="vtest" description="vtest" vendor="pkware">

   <dependencies>

      <!-- dependency on the current vSphere Client version is required -->

      <pluginPackage id="com.vmware.vsphere.client" version="5.1.0" />

   </dependencies>

   <bundlesOrder>

      <bundle id="com.pkware.vzip.java.vzipdbservice" />

      <bundle id="com.pkware.vzip.java.vzipdispatchservice" />

      <bundle id="com.pkware.vzip.flex.vzipui" />

   </bundlesOrder>

</pluginPackage>

The package contains a vzipdbservice.jar in the plugin folder. The MANIFEST.MF for that JAR is shown below.

Manifest-Version: 1.0

Bundle-ManifestVersion: 2

Bundle-Name: vzipdbservice

Bundle-SymbolicName: com.pkware.vzip.java.vzipdbservice

Bundle-Version: 1.0.0

Bundle-Vendor: pkware

Bundle-ClassPath: .,

lib/bcprov-jdc15on-149.jar,

lib/commons-codec-1.4.jar,

lib/jna-4.0.0.jar,

lib/jna-platform-4.0.0.jar,

lib/securezip-toolkit.jar,

lib/sqlite-jdbc-3.7.2.jar

Import-Package: org.apache.commons.logging

Export-Package: com.pkware.vzip.java.vzipdbservice

All of the names appear to match like they should based upon the documentation I've seen. Any help would be appreciated.