Eclipse Workspace Unavailable. Without a workspace dir eclipse doesn't know which projects exist. Be sure to also enter a.

Drag to your running eclipse workspace. Then go to > “startup and shutdown”.
Go To The Windows Menu And Select The Preferences Option.
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The Problem Happens To Me For Multiple Versions Of Eclipse, Including Oxygen (4.7).
Then click on/enable “refresh workspace on startup”.
For Example, If You Want.
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Without A Workspace Dir Eclipse Doesn't Know Which Projects Exist.
Go to > “workspaces preferences”.
Even Though I Don't Have The F Drive Anymore It Is Still Listed As A.
Go to the oracle java downloads page for eclipse java download.
Then Go To ≫ “Startup And Shutdown”.