Problems compiling the library

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Im using the Arduino ide Version 1.0.5 with the alpha gsm librarie; the 
operating system is Windows 8.1 64 bits. I have an Arudino Uno and when i try 
to compile the librarie with the apropiate changes the following error ocurrs: 
"In file included from C:\Program Files 
(x86)\Arduino\libraries\GSMSHIELD_TDG/SIM900.h:5,
                 from sketch_jan13a.ino:1:
C:\Program Files (x86)\Arduino\libraries\GSMSHIELD_TDG/GSM.h:195: error: 
'SoftwareSerial' does not name a type
C:\Program Files (x86)\Arduino\libraries\GSMSHIELD_TDG/GSM.h:201: error: 
'WideTextFinder' does not name a type

How can i solve it?

Original issue reported on code.google.com by [email protected] on 13 Jan 2014 at 4:10