Why I got “Failed to initialize XML parser, error 201”?
If you got “Failed to initialize XML parser, error 201”, you need to check if the environment variable ORA_NLS33 is set to point to the location of the NLS data files. On Unix systems, this is usually $ORACLE_HOME/common/nls/admin/data. On Windows NT, this is usually $ORACLE_HOME/nlsrtl/admin/nlsdata. Starting with version 9.0.1, C and C++ XDK releases that are downloaded from OTN contain an nlsdata/ subdirectory. You must set the environment variable ORA_NLS33 to the absolute path of the nlsdata/ subdirectory if you don’t have an Oracle installation.