Warning: You are importing createRoot from "react-dom" which is not supported. You should instead import it from "react-dom/client".

这个警告提示你在导入 `createRoot` 函数时使用了不被支持的方式，正确的方式应该是从 `react-dom/client` 中导入它。这是因为在 React 的新版本中，一些 API 已经被移动到了独立的包中，而 `createRoot` 函数也是其中之一。

你可以将导入语句从 `react-dom` 改为 `react-dom/client`，如下所示：

import { createRoot } from 'react-dom/client';

这样就可以消除这个警告了。同时，如果你使用的其他 React API 也被移动到了独立的包中，那么也需要相应地更改导入方式。

相关问题

sqoop import --connect jdbc:mysql://zhaosai:3306/mydb --username root --password jqe6b6 --table news --target-dir /user/news --fields-terminated-by “;” --hive-import --hive-table news -m 1出现错误Warning: /opt/programs/sqoop-1.4.7.bin__hadoop-2.6.0/../hbase does not exist! HBase imports will fail. Please set $HBASE_HOME to the root of your HBase installation. Warning: /opt/programs/sqoop-1.4.7.bin__hadoop-2.6.0/../hcatalog does not exist! HCatalog jobs will fail. Please set $HCAT_HOME to the root of your HCatalog installation. Warning: /opt/programs/sqoop-1.4.7.bin__hadoop-2.6.0/../accumulo does not exist! Accumulo imports will fail. Please set $ACCUMULO_HOME to the root of your Accumulo installation. Warning: /opt/programs/sqoop-1.4.7.bin__hadoop-2.6.0/../zookeeper does not exist! Accumulo imports will fail. Please set $ZOOKEEPER_HOME to the root of your Zookeeper installation. 23/06/10 16:18:23 INFO sqoop.Sqoop: Running Sqoop version: 1.4.7 23/06/10 16:18:23 WARN tool.BaseSqoopTool: Setting your password on the command-line is insecure. Consider using -P instead. 23/06/10 16:18:23 INFO manager.MySQLManager: Preparing to use a MySQL streaming resultset. 23/06/10 16:18:23 INFO tool.CodeGenTool: Beginning code generation Sat Jun 10 16:18:23 CST 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. 23/06/10 16:18:24 INFO manager.SqlManager: Executing SQL statement: SELECT t.* FROM news AS t LIMIT 1 23/06/10 16:18:24 INFO manager.SqlManager: Executing SQL statement: SELECT t.* FROM news AS t LIMIT 1 23/06/10 16:18:24 INFO orm.CompilationManager: HADOOP_MAPRED_HOME is /opt/programs/hadoop-2.7.6 注: /tmp/sqoop-root/compile/84ba419f00fa83cb5d16dba722729d01/news.java使用或覆盖了已过时的 API。 注: 有关详细信息, 请使用 -Xlint:deprecation 重新编译。 23/06/10 16:18:25 INFO orm.CompilationManager: Writing jar file: /tmp/sqoop-root/compile/84ba419f00fa83cb5d16dba722729d01/news.jar 23/06/10 16:18:25 WARN manager.MySQLManager: It looks like you are importing from mysql. 23/06/10 16:18:25 WARN manager.MySQLManager: This transfer can be faster! Use the --direct 23/06/10 16:18:25 WARN manager.MySQLManager: option to exercise a MySQL-specific fast path. 23/06/10 16:18:25 INFO manager.MySQLManager: Setting zero DATETIME behavior to convertToNull (mysql) 23/06/10 16:18:25 ERROR tool.ImportTool: Import failed: No primary key could be found for table news. Please specify one with --split-by or perform a sequential import with '-m 1'.

这段代码是用 Sqoop 工具从 MySQL 数据库中导入数据到 Hadoop 分布式文件系统，并在 Hive 中创建表。但是在导入过程中出现了错误，错误提示为“Import failed: No primary key could be found for table news. Please specify one with --split-by or perform a sequential import with '-m 1'.”，意思是在导入表 news 的过程中没有找到主键，需要使用 --split-by 参数指定一个主键或者使用 -m 1 进行串行导入。

解释/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/matplotlib/__init__.py:107: DeprecationWarning: Using or importing the ABCs from 'collections' instead of from 'collections.abc' is deprecated, and in 3.8 it will stop working from collections import MutableMapping /opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/matplotlib/rcsetup.py:20: DeprecationWarning: Using or importing the ABCs from 'collections' instead of from 'collections.abc' is deprecated, and in 3.8 it will stop working from collections import Iterable, Mapping /opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/matplotlib/colors.py:53: DeprecationWarning: Using or importing the ABCs from 'collections' instead of from 'collections.abc' is deprecated, and in 3.8 it will stop working from collections import Sized

这段警告信息是在使用 Matplotlib 库时出现的，其中的 DeprecationWarning 告诉我们使用或导入 'collections' 中的 ABCs 而不是从 'collections.abc' 中导入是不推荐的。在 Python 3.8 中，这种用法将停止工作。通常情况下，这些警告可以忽略，因为它们不会影响代码的运行。但如果你想避免这些警告，可以使用 'collections.abc' 中的 ABCs，而不是从 'collections' 中导入。