Do you see anything get downloaded to the /Library/Application
If you have updated the actual package file since creating the "distribution package" in the LANDesk console you may need to perform an "update hash" operation on the package within the LANDesk console. Also, try just copying and pasting the http:// address from your package definition into Safari or Firefox on the mac. If you can't download it from there then LANDesk can't find the package to send it. If the file downloads fine there then it should download fine using the normal LANDesk distribution methods.
Jharris, the files are copied to the Mac, the folder sdcache but is not
running, I created again the package, but the task appears in the same error.
What version is the LDMS client you are trying to upgrade to 8.8?