Unable to close the current period (Nov.12) for the Corporate book.

Hi,

I cannot close the current period (Nov.12) for the Corporate book, so i have done the following steps;

1.Run Depreciation ( without closing the period) in Corp. & Tax book.

2.Run create Journal entries standard and send to GL

3.Review FA reports and verify results with GL and have already posted the Journal entries.

4.I run Depreciation with closed the period, but i found error message, so i try to work arround that and i found

Tax book have already closed period.

Please recommend me about this issue, i would like to know the steps of solving.

Regards,

Pattama