"Calculation_######## Does Not Exist" Error Occurs When Appending Data From a File

Option 1

Right click the data source > Extract > Compute Calculations Now.
 
 

Option 2

Refresh and replace the data source according to the following steps.

1. Open the workbook by Tableau Desktop.
2. Right-click the data source > Extract > Refresh.
3. Right-click the data source > Add to Saved Data Source.
4. Save the TDS file.
5. Click Data > New Data Source > Other Files.
6. Select the TDS which was created at step 4.
7. Right-click the original data source > Replace Data Source.
8. Check Current and Replacement and click OK.
9. Close the original data source > Close.