eclipse Failed to load properties file for project

I'v just installed eclipse for developing android applications on my macbook pro(10.9).I'v installed jdk1.7,android sdk and adt plugin for eclipse,however,when i create my first android application , i got the error 'Failed to load properties file for project ...'

Error Log： !SESSION 2015-03-10 09:08:33.363 ----------------------------------------------- eclipse.buildId=4.4.2.M20150204-1700 java.version=1.7.0_75 java.vendor=Oracle Corporation BootLoader constants: OS=macosx, ARCH=x86_64, WS=cocoa, NL=zh_CN Framework arguments: -product org.eclipse.epp.package.java.product -keyring /Users/bwiunbuaa/.eclipse_keyring -showlocation Command-line arguments: -os macosx -ws cocoa -arch x86_64 -product org.eclipse.epp.package.java.product -keyring /Users/bwiunbuaa/.eclipse_keyring -showlocation

!ENTRY com.android.ide.eclipse.adt 4 0 2015-03-10 09:09:57.105
!MESSAGE Failed to load properties file for project 'lighthouse'

what is wrong for me?

follow steps for updating eclipse

 1. Download Eclipse from the official site
 2. Download and install JDK latest version
 3. After installing the eclipse, go to Help > Install New Software.
 4. Click Add, in the top-right corner.
 5. In the Add Repository dialog that appears, enter "ADT Plugin" for the
Name and the following URL for the Location: https://dl-ssl.google.com/android/eclipse/
Click OK.
 6. In the Available Software dialog, select the checkbox next to Developer Tools and click Next.
 7. In the next window, you'll see a list of the tools to be downloaded. Click Next.
 8. Read and accept the license agreements, then click Finish.If you get a security warning saying that the authenticity or validity of the software can't be established, click OK.
 9. When the installation completes, restart Eclipse.