Package failing install of other packages

[strimen]

Using the latest version of Unity 6.1(6000.1.2f1) and following the setup instructions for VPE when trying to install the packages via "There, enter org.visualpinball.engine.unity.hdrp and click Add. This will take a moment as Unity downloads and compiles all of VPE's dependencies and parses all the assets that we ship in our library." the process fails inside Unity because of this error:

[Package Manager Window] Error adding package: org.visualpinball.engine.unity.hdrp.
Unable to add package [org.visualpinball.engine.unity.hdrp]:
One or more dependencies could not be added to the local file system:
org.visualpinball.unity.assetlibrary: sha512-Jiqm3PFZVL99WAXJEMfBNeImkDViQC+ZL9NdbwLH1CrWcCdOetgqD55M92Imvu1HJlzVCOT7i8+Z+ILm2OpS2Q== integrity checksum failed when using sha512: wanted sha512-Jiqm3PFZVL99WAXJEMfBNeImkDViQC+ZL9NdbwLH1CrWcCdOetgqD55M92Imvu1HJlzVCOT7i8+Z+ILm2OpS2Q== but got sha512-RHUKPEoWfDwcBh+rR0C/JzK2MfA7sw7oto+3dByIFjfAWxsC5HF1ZKhfm3r0+sRS+4RqhjIWWNOtkP4KN4AJSg==. (1039116340 bytes)
UnityEditor.EditorApplication:Internal_CallUpdateFunctions ()

Also, trying to directly pull in this package as a tarball locally fails with the following error:

[Package Manager Window] Error adding package: file:C:/Users/bryan/Downloads/org.visualpinball.unity.assetlibrary-0.0.1-preview.60.tgz.
zlib: invalid stored block lengths
UnityEditor.EditorApplication:Internal_CallUpdateFunctions ()

[shntat]

I downloaded extracted each package from github and install package from disk.

[freezy]

Still working on this, I'll let you know when I'm done!