到此位置C:\Users\peng\Adobe Flash Builder 4.7\cascaded\349722\configuration\.settings打开org.eclipse.ui.ide.prefs
删除RECENT_WORKSPACES里的多余路径
#Thu Jun 20 16:57:45 CST 2013
RECENT_WORKSPACES_PROTOCOL=3
MAX_RECENT_WORKSPACES=5
SHOW_WORKSPACE_SELECTION_DIALOG=false
eclipse.preferences.version=1
NoPromptForMigrate=false
RECENT_WORKSPACES=C\:\\Users\\peng\\Adobe Flash Builder 4.7\nD\:\\Fishbowl2013