Macbook Air wont update (V.10.7.4)/ Unexpected error occurred

Launch the Console application in any of the following ways:

☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)

☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.

☞ Open LaunchPad. Click Utilities, then Console in the icon grid.

Select

/var/log ▹ install.log

from the log list on the left. If you don't see that list, select

View ▹ Show Log List

from the menu bar at the top of the screen. The contents of the log will appear on the right. Each log message begins with a timestamp. Select the messages from the time of the last installation or update attempt. If you're not sure when that was, click the Clear Display button in the toolbar of the Console window and then try the installation again. Select the new messages that appear. Copy the messages to the Clipboard by pressing the key combination command-C. Paste into a reply to this message (command-V).

☞ If there are runs of repeated messages, post only one example of each. Don’t post many repetitions of the same message.

☞ When posting a log extract, be selective. Don't post more than is requested.

☞ Please don't indiscriminately dump thousands of lines from the log into this discussion.

☞ Please don't post screenshots of log messages—post the text.

☞ Some private information, such as your name, may appear in the log. Anonymize before posting. You may need to use a text editor with search and replace, such as TextEdit.

PLEASE HELP!

What I have recently done to my computer:

I am currently uploading all my data into the Cloud.

I purchased iTunes Match and Google Drive. Google Drive caused problems on my computer, so I deleted it. It was causing it to crash. It hasn't crashed since, but now runs more slowly.

iTunes Match is taking forever, but seems to be working.;:

Something else I've noticed with iTunes, every time I open the application now, it puts these files onto my desktop screen: iTunes Media folder, iTunes Library.itl, iTunes Library.xml, Album Artwork folder, iTunes Library Extras.itdb and iTunes Library Genius.itdb.

Like I said, PLEASE HELP!!!!

Aug 14 04:49:05 -MacBook-Pro installd[2466]: PackageKit: update_dyld_shared_cache -overlay /var/folders/zz/zzzivhrRnAmviuee+++++++++++/Cleanup At Startup/PKInstallSandbox-tmp/Root

Aug 14 04:49:15 -MacBook-Pro installd[2466]: update_dyld_shared_cache: warning can't use root /Applications/iChat.app/Contents/MacOS/iChat: can't open file, errno=2

Aug 14 04:49:15 -MacBook-Pro installd[2466]: update_dyld_shared_cache: warning can't use root /Applications/iCal.app/Contents/MacOS/iCal: can't open file, errno=2

Aug 14 04:49:18 -MacBook-Pro installd[2466]: PackageKit: Shoving /var/folders/zz/zzzivhrRnAmviuee+++++++++++/Cleanup At Startup/PKInstallSandbox-tmp/Root (3 items) to /

Aug 14 04:49:52 -MacBook-Pro /System/Library/PrivateFrameworks/PackageKit.framework/Resources/shove[2556]: [source=file] failed _RelinkFile(/var/folders/zz/zzzivhrRnAmviuee+++++++++++/Cleanup At Startup/PKInstallSandbox-tmp/Root/Applications/iTunes.app/Contents/Resources/iT unes.help/Contents/Resources/tr.lproj/itns34268017.html, /Applications/iTunes.app/Contents/Resources/iTunes.help/Contents/Resources/tr.l proj/itns34268017.html): Input/output error

Aug 14 04:49:53 -MacBook-Pro installd[2466]: PackageKit: Install Failed: (null)\nError Domain=PKInstallErrorDomain Code=120 UserInfo=0x1004c3930 "An unexpected error occurred while moving files to the final destination." Underlying Error=(Error Domain=NSPOSIXErrorDomain Code=5 "The operation couldn’t be completed. Input/output error") {\n NSLocalizedDescription = "An unexpected error occurred while moving files to the final destination.";\n NSUnderlyingError = "Error Domain=NSPOSIXErrorDomain Code=5 \"The operation couldn\U2019t be completed. Input/output error\"";\n arguments = (\n "-f",\n "-s",\n "/var/folders/zz/zzzivhrRnAmviuee+++++++++++/Cleanup At Startup/PKInstallSandbox-tmp/Root",\n "/"\n );\n}

Aug 14 04:49:54 -MacBook-Pro Software Update[2450]: Error: An unexpected error occurred while moving files to the final destination. (PKInstallErrorDomain code 120)

THANK YOU 🙂