I try to compile sample code of "05StockPlotMultiThreaded" in book "iPhone Advanced Projects", it is used open source project "Plausible Blocks", when I compile it, I got error as below, how can I solve this probelm?
Code:
Invalid value 'coop.plausible.blocks.compilers.gcc.4_2' for GCC_VERSION
[WARN]Unable to determine concrete GCC compiler for file /Users/mikezang/iPad/iPhone_Advanced_Projects-4489/apress/Examples/05StockPlotMultiThreaded/main.m of type sourcecode.c.objc.
[WARN]Unable to determine concrete GCC compiler for file /Users/mikezang/iPad/iPhone_Advanced_Projects-4489/apress/Examples/05StockPlotMultiThreaded/Classes/StockPlotAppDelegate.m of type sourcecode.c.objc.
[WARN]Unable to determine concrete GCC compiler for file /Users/mikezang/iPad/iPhone_Advanced_Projects-4489/apress/Examples/05StockPlotMultiThreaded/Classes/RootViewController.m of type sourcecode.c.objc.
[WARN]Unable to determine concrete GCC compiler for file /Users/mikezang/iPad/iPhone_Advanced_Projects-4489/apress/Examples/05StockPlotMultiThreaded/Classes/APYahooDataPullerGraph.m of type sourcecode.c.objc.
[WARN]Unable to determine concrete GCC compiler for file /Users/mikezang/iPad/iPhone_Advanced_Projects-4489/apress/Examples/05StockPlotMultiThreaded/Classes/APYahooDataPuller.m of type sourcecode.c.objc.
[WARN]Unable to determine concrete GCC compiler for file /Users/mikezang/iPad/iPhone_Advanced_Projects-4489/apress/Examples/05StockPlotMultiThreaded/Classes/NSDictionary+APFinancalData.m of type sourcecode.c.objc.
[WARN]Unable to determine concrete GCC compiler for file /Users/mikezang/iPad/iPhone_Advanced_Projects-4489/apress/Examples/05StockPlotMultiThreaded/Classes/NSThread+PLBlocks.m of type sourcecode.c.objc.
[WARN]Unable to determine concrete GCC compiler for file /Users/mikezang/iPad/iPhone_Advanced_Projects-4489/apress/Examples/05StockPlotMultiThreaded/Classes/NSOperationQueue+PLBlocks.m of type sourcecode.c.objc.