pyflink提交任务报错

pyflink 提交任务时报错，求解决

提交任务命令：flink run -py G:\E\flink\flink-1.14.3\examples\python\table\word_count.py
报错信息：
The program finished with the following exception:
java.lang.NullPointerException
        at sun.nio.fs.WindowsPathParser.parse(Unknown Source)
        at sun.nio.fs.WindowsPathParser.parse(Unknown Source)
        at sun.nio.fs.WindowsPath.parse(Unknown Source)
        at sun.nio.fs.WindowsFileSystem.getPath(Unknown Source)
        at org.apache.flink.client.program.PackagedProgram.getAllLibraries(PackagedProgram.java:484)
        at org.apache.flink.client.program.PackagedProgram.(PackagedProgram.java:212)
        at org.apache.flink.client.cli.CliFrontend.buildProgram(CliFrontend.java:799)
        at org.apache.flink.client.cli.CliFrontend.run(CliFrontend.java:196)
        at org.apache.flink.client.cli.CliFrontend.parseParameters(CliFrontend.java:1010)
        at org.apache.flink.client.cli.CliFrontend.lambda$main$10(CliFrontend.java:1083)
        at org.apache.flink.runtime.security.NoOpSecurityContext.runSecured(NoOpSecurityContext.java:30)
        at org.apache.flink.client.cli.CliFrontend.main(CliFrontend.java:1083)

给你找了一篇非常好的博客，你可以看看是否有帮助，链接：PyFlink 安装和使用