Option to activate error screen on XCODE

Question

Its been a day since i have been working on XCODE on my mac. Till yesterday , the errors were getting displayed properly in the output editor below. I am not sure what settings i have changed, the errors and warnings are nt getting displayed though the build failed. Though there are errors in my code,they are nt getting displayed.

Please advise me what has to be done to enable the error screen on Xcode

Attached the screenshot. Thanks Tejas