lightroom 5 downloading

cant download lightroom

i get always thefolowing screen

Exit Code: 7

Please see specific errors below for troubleshooting. For example,  ERROR: DW006 ...

-------------------------------------- Summary --------------------------------------

- 0 fatal error(s), 2 error(s)

----------- Payload: Adobe Photoshop Lightroom 5 5.3.0.0 Adobe Photoshop Lightroom 5.pkg_5.3 -----------

ERROR: DW006: Apple Package failed to install successfully.

ERROR: Third party payload installer Adobe Photoshop Lightroom 5.pkg failed with exit code: 1