场<fieldname>数据库中不存在tableau错误

Question

I have created a tableau dashboard using MongoDB database. We have 30 fields in the database. I have created line graph which show average income of customer and it was working for the past 4 months but suddenly a week ago it stopped working and threw below error. Tableau error

I have check the MongoDB collection and the field is there. But when I see tableau extract it is not showing the field. I want to find root cause of this and solution as well.

Answer 1

Assuming that you have checked the datasource and the filed does still exists I would try to open the workbook with Tableau Desktop, go to Data => New Data Source and make a brand new data source with the same structure of the one that shows you the error.

After that you can go to Data => Replace Data Source and change the source from the old to the new one. Finally you have to close the old Data Source.

Please refer to these pages of the official Tableau Desktop guide:

• Replace Data Sources
• Close Data Sources

Answer 2

您只需要再次导入数据源，然后通过数据 => 替换数据源，Tableau 将再次自动应用工作表作业。