vb.net - I get An unhandled exception of type 'System.InvalidCastException' -


i keep getting invalidcastexception each time use code. can help? working on program called crystal. crystal library of games.

 label1.text = "please wait..."     'this game's info can use reasons.     label1.text = "getting game info..."     dim filereader string     filereader = my.computer.filesystem.readalltext(gamepath \ "crystal\gamename.txt")    '<-------- error here      'this check contents, make sure correct.     label1.text = "now checking contents..."     if my.computer.filesystem.directoryexists(gamepath \ "crystal")         label1.text = "yup. crystal game."     else         msgbox("this not crystal game. make sure crystal folder in package. ")         me.close()     end if     'crystal folder files      'this check gamename.txt     label1.text = "checking crystal folder data..."     if my.computer.filesystem.fileexists(gamepath \ "crystal\gamename.txt")         label1.text = "found gamename.txt"     end if     'this check image.png     if my.computer.filesystem.fileexists(gamepath \ "crystal\image.png")         label1.text = "found image.png"     end if      'this check start.bat     if my.computer.filesystem.fileexists(gamepath \ "crystal\start.bat")         label1.text = "found start.bat"     end if     ' create folder game going in.      ' extract game c:\crystal\library     label1.text = "extracting game files..."     zipfile.extracttodirectory(gamepath, "c:\crystal\library")


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