Hi, This is clearly a Scala version issue. You need to make sure that all Flink dependencies have the same version and are compiled for Scala 2.11. The "_2.11" postfix in the dependency name indicates that it is a Scala 2.11 dependency ("_2.12 indicates Scala 2.12 compatibility).
Best, Fabian Am Mi., 11. Sept. 2019 um 05:53 Uhr schrieb Ben Yan < yan.xiao.bin.m...@gmail.com>: > The following is the environment I use： > 1. flink.version: 1.9.0 > 2. java version "1.8.0_212" > 3. scala version: 2.11.12 > > When I wrote the following code in the scala programming language, I found > the following error： > > // set up the batch execution environment > val bbSettings = > EnvironmentSettings.newInstance().useBlinkPlanner().inBatchMode().build() > val bbTableEnv = TableEnvironment.create(bbSettings) > > error: Static methods in interface require -target:jvm-1.8 > [ERROR] val bbTableEnv = TableEnvironment.create(bbSettings) > > But when I use the java programming language or the version of scala in 2.12, > there is no problem. > > If I use the version of scala2.11, is there any way to solve this problem? > thanks > > > Best, > > Ben > >