LR will not install! What do I need to do?

I don't know what to do. I just joined CC for $9.99. Everything else downloaded and installed, but LR downloads and then fails to install. What do I need to do? This is what it says:

Exit Code: 7

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

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

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

----------- Payload: AdobeLightroom5CCMPkg-mul 5.2.0.0 {4b06fc24-6249-4c57-9830-6008a3ce9a80} -----------

ERROR: DW006: Apple Package failed to install successfully.

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

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