After upgrading to the latest version, the original project would crash when opened

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Hey, thanks for the report. Workspace storage can get corrupted because of a large chat history. Good news, there’s a proven workaround.

Easy fix (you’ll lose chat history for this project):

  1. Fully close Cursor
  2. Open in Finder: ~/Library/Application Support/Cursor/User/workspaceStorage/
  3. Find the right workspace folder (you can sort by “Date Modified”, it should be the most recent one)
  4. Delete state.vscdb and state.vscdb.backup
  5. Reopen the project

If you want to keep your chat history, there’s a more advanced SQL fix in this thread: “Open Chat as Editor” causes permanent black screen when reopening project - #10 by satriowputra
It uses a Python script to remove only the problematic data while keeping your chats.

Let me know if it doesn’t help.