ORA-01658: unable to create INITIAL extent for segment in tablespace SYSTEM

Import terminated successfully with warnings.

ALTER DATABASE DATAFILE 'C:\ORACLEXE\APP\ORACLE\ORADATA\XE\SYSTEM.DBF' RESIZE 3000M;

Or by adding a second datafile to the tablespace:

ALTER TABLESPACE SYSTEM

ADD DATAFILE 'C:\ORACLEXE\APP\ORACLE\ORADATA\XE\SYSTEM.DBF'

SIZE 1000M;

Or just allow the datafile to auto extend:

ALTER DATABASE

DATAFILE 'C:\ORACLEXE\APP\ORACLE\ORADATA\XE\SYSTEM.DBF'

AUTOEXTEND ON

MAXSIZE UNLIMITED;