hello    I learn sqoop and mysql fist time i use hdp 2.65 and use putty my user name is root@localhost   I want to sqoop movie file   when I input order    sqoop import --connect jdbc:mysql://localhost/movielens --driver com.mysql.jdbc.Driver --table movies -m 1   and the following warning message appears.   Warning: /usr/hdp/2.6.5.0-292/accumulo does not exist! Accumulo imports will fail. Please set $ACCUMULO_HOME to the root of your Accumulo installation. 23/01/31 19:47:12 INFO sqoop.Sqoop: Running Sqoop version: 1.4.6.2.6.5.0-292 23/01/31 19:47:12 WARN sqoop.ConnFactory: Parameter --driver is set to an explicit driver however appropriate connection manager is not being set (via --connection-manager). Sqoop is going to fall back to org.apache.sqoop.manager.GenericJdbcManager. Please specify explicitly which connection manager should be used next time. 23/01/31 19:47:12 INFO manager.SqlManager: Using default fetchSize of 1000 23/01/31 19:47:12 INFO tool.CodeGenTool: Beginning code generation Tue Jan 31 19:47:13 UTC 2023 WARN: Establishing SSL connection without server's identity verification is not recommended. According to MySQL 5.5.45+, 5.6.26+ and 5.7.6+ requirements SSL connection must be established by default if explicit option isn't set. For compliance with existing applications not using SSL the verifyServerCertificate property is set to 'false'. You need either to explicitly disable SSL by setting useSSL=false, or set useSSL=true and provide truststore for server certificate verification. 23/01/31 19:47:14 ERROR manager.SqlManager: Error executing statement: java.sql.SQLException: Access denied for user ''@'localhost' (using password: NO) java.sql.SQLException: Access denied for user ''@'localhost' (using password: NO)         at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:965)         at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3973)         at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3909)         at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:873)         at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1710)         at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1226)         at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2188)         at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2219)         at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2014)         at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:776)         at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47)         at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)         at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)         at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)         at java.lang.reflect.Constructor.newInstance(Constructor.java:423)         at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)         at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:386)         at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:330)         at java.sql.DriverManager.getConnection(DriverManager.java:664)         at java.sql.DriverManager.getConnection(DriverManager.java:270)         at org.apache.sqoop.manager.SqlManager.makeConnection(SqlManager.java:902)         at org.apache.sqoop.manager.GenericJdbcManager.getConnection(GenericJdbcManager.java:52)         at org.apache.sqoop.manager.SqlManager.execute(SqlManager.java:763)         at org.apache.sqoop.manager.SqlManager.execute(SqlManager.java:786)         at org.apache.sqoop.manager.SqlManager.getColumnInfoForRawQuery(SqlManager.java:289)         at org.apache.sqoop.manager.SqlManager.getColumnTypesForRawQuery(SqlManager.java:260)         at org.apache.sqoop.manager.SqlManager.getColumnTypes(SqlManager.java:246)         at org.apache.sqoop.manager.ConnManager.getColumnTypes(ConnManager.java:328)         at org.apache.sqoop.orm.ClassWriter.getColumnTypes(ClassWriter.java:1853)         at org.apache.sqoop.orm.ClassWriter.generate(ClassWriter.java:1653)         at org.apache.sqoop.tool.CodeGenTool.generateORM(CodeGenTool.java:107)         at org.apache.sqoop.tool.ImportTool.importTable(ImportTool.java:488)         at org.apache.sqoop.tool.ImportTool.run(ImportTool.java:615)         at org.apache.sqoop.Sqoop.run(Sqoop.java:147)         at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:76)         at org.apache.sqoop.Sqoop.runSqoop(Sqoop.java:183)         at org.apache.sqoop.Sqoop.runTool(Sqoop.java:225)         at org.apache.sqoop.Sqoop.runTool(Sqoop.java:234)         at org.apache.sqoop.Sqoop.main(Sqoop.java:243) 23/01/31 19:47:14 ERROR tool.ImportTool: Encountered IOException running import job: java.io.IOException: No columns to generate for ClassWriter         at org.apache.sqoop.orm.ClassWriter.generate(ClassWriter.java:1659)         at org.apache.sqoop.tool.CodeGenTool.generateORM(CodeGenTool.java:107)         at org.apache.sqoop.tool.ImportTool.importTable(ImportTool.java:488)         at org.apache.sqoop.tool.ImportTool.run(ImportTool.java:615)         at org.apache.sqoop.Sqoop.run(Sqoop.java:147)         at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:76)         at org.apache.sqoop.Sqoop.runSqoop(Sqoop.java:183)         at org.apache.sqoop.Sqoop.runTool(Sqoop.java:225)         at org.apache.sqoop.Sqoop.runTool(Sqoop.java:234)         at org.apache.sqoop.Sqoop.main(Sqoop.java:243)         what can I do?   ... 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