Getting error when added to ios project

[Google Code Exporter]

What steps will reproduce the problem?
1. Add gdata to existing project.
2. Compile
3. You can see this error

What is the expected output? What do you see instead?
Should compile properly.

What version of the product are you using? On what operating system?
xcode 4.2

Please provide any additional information below.

Error: 
Lexical or Preprocessor issue
'GTMGatherInputStream.h' file not found

Original issue reported on code.google.com by [e-mail] on 20 Aug 2012 at 11:40