This question has been asked before but the answers that have been given are not solving the problem. All I see in the BCWS and BCWP columns are zeros. Let me forestall some of the usual responses to this complaint:

1) I did create resources with cost rates.
2) I did assign resources to tasks.
3) I did save the baseline.
4) I set the EV method to percent complete for some tasks and physical % complete for others. I entered corresponding values for % complete and physical % complete for each task.
5) I did set a status date in the middle of the project when some tasks should be completed, some partially completed and some not started.
6) I did update the project.
7) I have positive values for Baseline Cost, ACWP, Remaining Cost, Cost Variance, but the BCWS and BCWP columns stubbornly remain zero.