Hello Engine Sample not getting build.

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Goto xcodeProj -> Project(Menu-UpdateEngine) -> Build Settings Menu ->Base 
SDK -> Change it's value to "Latest Mac OS X (Mac OS X 10.6)".

2. Select HelloEngine and build it.

What is the expected output? What do you see instead?
Expected output is "Build Successfully"

But getting 
GDataHTTPFetcher.h file not found
GTMBase64.h file not found

What version of the product are you using? On what operating system?
Latest version as per Date 3/Sept/2012.(Downloaded from svn).
Mac - 10.6.8

Please provide any additional information below.
I have tried to build this project by adding missing files. But getting linker 
errors on it.
Please provide procedure to build it on newer xCode versions.

Original issue reported on code.google.com by alokrao...@gmail.com on 3 Sep 2012 at 7:50

[GoogleCodeExporter]

i fixed this by checking out
google-toolbox-for-mac - rev373
gdata-objectivec-client - rev603

and replacing the corresponding folders in update-engine/externals/

hope that helps

Original comment by sreen...@perk.com on 9 Jan 2013 at 8:30