ORA-01516: nonexistent log file, data file, or temporary file - Oracle while resizing tempfile

Got below error while resizing the tempfile. 

Error:

sql> alter database tempfile '/user/app/db_home1/data3/db_home1/temp1.dbf' resize 12001m;

alter database tempfile '/user/app/db_home1/data3/db_home1/temp1.dbf' resize 12001m
*
ERROR at line 1:
ORA-01516: nonexistent log file, data file, or temporary file "/user/app/db_home1/data3/db_home1/temp1.dbf"

Fix: 

sql> alter tablespace temp shrink tempfile '/user/app/db_home1/data3/db_home1/temp1.dbf' keep 12G;

Tablespace altered.