visual studio 2010 - Why do IDEs stick to old code after an error? -

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what ides - flash develop, flash builder, visual studio or eclipse - makes them stick old error when delete code , start afresh point out error there though there magically invisible time..even in new code.

its real bugger don't know ins , outs of said ides. once make error, that's it! no matter if delete code there , make print lines on screen "error this..error that" or ominous "build failed" without giving info.

well if has gone through newbie stage , know better please point out if feature these ides have , how overcome thing.

have tried build clean?

i've seen time time on large builds.


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