运行flink 1.7的项目，报错如下：

Exception in thread “main” java.lang.NoClassDefFoundError: org/apache/flink/shaded/guava18/com/google/common/collect/ImmutableList at org.apache.flink.table.planner.plan.schema.FlinkPreparingTableBase.<init>(FlinkPreparingTableBase.java:92) at org.apache.flink.table.planner.plan.schema.ExpandingPreparingTable.<init>(ExpandingPreparingTable.java:42) at org.apache.flink.table.planner.catalog.QueryOperationCatalogViewTable.<init>(QueryOperationCatalogViewTable.java:49) at org.apache.flink.table.planner.catalog.QueryOperationCatalogViewTable.create(QueryOperationCatalogViewTable.java:58) at org.apache.flink.table.planner.plan.FlinkCalciteCatalogReader.convertQueryOperationView(FlinkCalciteCatalogReader.java:146) at org.apache.flink.table.planner.plan.FlinkCalciteCatalogReader.toPreparingTable(FlinkCalciteCatalogReader.java:110) at org.apache.flink.table.planner.plan.FlinkCalciteCatalogReader.getTable(FlinkCalciteCatalogReader.java:91) at org.apache.calcite.prepare.CalciteCatalogReader.getTableForMember(CalciteCatalogReader.java:229) at org.apache.calcite.sql.validate.SqlValidatorUtil.getRelOptTable(SqlValidatorUtil.java:144) at org.apache.calcite.sql.validate.SqlValidatorUtil.getRelOptTable(SqlValidatorUtil.java:110) at org.apache.calcite.sql2rel.SqlToRelConverter.convertIdentifier(SqlToRelConverter.java:2490) at org.apache.calcite.sql2rel.SqlToRelConverter.convertFrom(SqlToRelConverter.java:2144) at org.apache.calcite.sql2rel.SqlToRelConverter.convertFrom(SqlToRelConverter.java:2093) at org.apache.calcite.sql2rel.SqlToRelConverter.convertFrom(SqlToRelConverter.java:2050) at org.apache.calcite.sql2rel.SqlToRelConverter.convertSelectImpl(SqlToRelConverter.java:663) at org.apache.calcite.sql2rel.SqlToRelConverter.convertSelect(SqlToRelConverter.java:644) at org.apache.calcite.sql2rel.SqlToRelConverter.convertQueryRecursive(SqlToRelConverter.java:3438) at org.apache.calcite.sql2rel.SqlToRelConverter.convertQuery(SqlToRelConverter.java:570) at org.apache.flink.table.planner.calcite.FlinkPlannerImpl.org$apache$flink$table$planner$calcite$FlinkPlannerImpl$$rel(FlinkPlannerImpl.scala:165) at org.apache.flink.table.planner.calcite.FlinkPlannerImpl.rel(FlinkPlannerImpl.scala:157) at org.apache.flink.table.planner.operations.SqlToOperationConverter.toQueryOperation(SqlToOperationConverter.java:902) at org.apache.flink.table.planner.operations.SqlToOperationConverter.convertSqlQuery(SqlToOperationConverter.java:871) at org.apache.flink.table.planner.operations.SqlToOperationConverter.convert(SqlToOperationConverter.java:250) at org.apache.flink.table.planner.operations.SqlToOperationConverter.convertSqlInsert(SqlToOperationConverter.java:564) at org.apache.flink.table.planner.operations.SqlToOperationConverter.convert(SqlToOperationConverter.java:248) at org.apache.flink.table.planner.delegation.ParserImpl.parse(ParserImpl.java:77) at org.apache.flink.table.api.internal.TableEnvironmentImpl.executeSql(TableEnvironmentImpl.java:660) at com.chuneng.saas.doris.FlinkCuSohJdbcSqlAnalyze.main(FlinkCuSohJdbcSqlAnalyze.java:98) Caused by: java.lang.ClassNotFoundException: org.apache.flink.shaded.guava18.com.google.common.collect.ImmutableList at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335) at java.lang.ClassLoader.loadClass(ClassLoader.java:357)

• 从报错信息 java.lang.NoClassDefFoundError: org/apache/flink/shaded/guava18/com/google/common/collect/ImmutableList 和 Caused by: java.lang.ClassNotFoundException: org.apache.flink.shaded.guava18.com.google.common.collect.ImmutableList 可以看出，程序在运行时无法找到 org.apache.flink.shaded.guava18.com.google.common.collect.ImmutableList 这个类。
• 这通常是因为相应的依赖库没有被正确地添加到项目的类路径中，导致 JVM 在运行时无法加载所需的类。

修改方案：

1. 确认你是否在项目的构建文件（如 Maven 的 pom.xml 或 Gradle 的 build.gradle）中添加了 Apache Flink 相关的依赖。
2. 确保使用的 Flink 版本是兼容的，并且其依赖的 Guava 版本是 flink-shaded-guava 的 18 版本。
3. 对于 Maven 项目，检查 pom.xml 中是否有类似如下的依赖：

<dependency>
    <groupId>org.apache.flink</groupId>
    <artifactId>flink-shaded-guava</artifactId>
    <version>18.0</version>
</dependency>

1. 对于 Gradle 项目，检查 build.gradle 中是否有类似如下的依赖：

implementation 'org.apache.flink:flink-shaded-guava:18.0'

1. 如果已经添加了依赖，可能是因为依赖冲突导致无法找到正确的类。可以使用 mvn dependency:tree（对于 Maven）或 gradle dependencies（对于 Gradle）命令查看依赖树，找出是否有多个版本的 Guava 被引入，然后通过排除冲突的依赖来解决。