Distribution Manager failed to access the source directory "%1" for package "%2".%12 Possible cause: Distribution Manager ...

%11Distribution Manager failed to access the source directory "%1" for package "%2".%12

Possible cause: Distribution Manager does not have sufficient rights to the package source directory.
Solution: Verify that the site server computer account has at least Read access to the directory you specify as the package source directory.

Possible cause: The package source directory contains files with long file names and the total length of the path exceeds the maximum length supported by the operating system.
Solution: Reduce the number of folders defined for the package, shorten the filename, or consider bundling the files using a compression utility.%0