HELP ON VISUAL STUDIO (C# programming)

[Einstein]

Habari ndugu wana JF.. Ninafanya project kwa kutumia C sharp.. Nilikua nafungua hiyo Visual studio na nikapata error message kama inavyoonekana kwenye picha hapo juu.. Nilishindwa kufungua project yangu, nashindwa kuelewa error hiyo imesababishwa na nini hasa.. Before, visual studio ilikua inafanya kazi vizuri tu bila shida yoyote..

Naomba msaada, shida itakua ni nini hasa

 

[Zing]

Walk a mile further by googling the error. u can also try to unistall and reistall dot net framework 3.5 package