Spreadsheets error: 'Error fetching the list of spreadsheets'

After connecting to your Google Drive account, you may see the error message: there was an error fetching the list of spreadsheets. If so, you need to allow Google Drive permission to share data with Geckoboard.
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To do this, open the Google Apps control panel and navigate to Apps > Google Apps > Settings for Drive, and make sure "Allow users to install Google Drive apps" in the "Data Access" menu is enabled.