问题 提问于 2014年5月24日
I downloaded multiple videos from my gmail that i was sent in hopes of making a movie.. But when i finished downloading the clips and i tried to place it on the storyboard it didnt show a thumbnail or anything just a grey screen with a triangle with an
exclamation mark in the middle.. please help me figure out how to be able to watch the video without an error im becoming frustrated.
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