Trying to migrate from LastPass to Bitwarden, every import attempt fails with the error: “no elements in sequence.”

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@nickless09 Welcome to the forum!

Lastpass is known to sometimes produce CSV files that do not adhere to standards for CSV formatting, or that are otherwise corrupt.

I would suggest trying to do the CSV export from the Lastpass browser extension, instead.

Also, instead of a text editor, I would recommend using a spreadsheet app (e.g., Microsoft Excel) to open the CSV file, and examine its contents. A few things to look for:

  • Do any items in the url column contain a value like http://sn ?
  • Does the fav column contain any non-blank entries that are not 0 or 1?
  • Do any rows seem to contain extra columns, or data that don’t line up with the other data in the file?
  • Are there any rows with obvious signs of data corruption?

If you are satisfied that your CSV export does not contain any problematic items, then you can try to use the step-by-step method that I’ve outlined in this comment to import your data. :warning: Warning: The linked instructions include steps for purging the vault contents prior to importing (to avoid creation of duplicate vault items) — if your Bitwarden vault contains any data that you don’t want to lose, you should take steps to download the vault contents before purging.