应用研发平台EMAS中我在云构建中添加了一个自定义bash脚本，为什么结果运行报错？

应用研发平台EMAS中我在云构建中添加了一个自定义bash脚本，里面就加了一个pwd，为什么结果运行报错？构建的是ios应用，参考图片： 参考完整日记：2024-04-26 11:16:44 PJ571655629068939264

11:16:44 [command] search plugin: Bash@1
11:16:44 find plugin Bash-1.1.0
11:16:44 done
11:16:44 [command] transfer Bash plugin
11:16:44 done
11:16:44 [command] render step task script
11:16:44 done
11:16:46 find plugin: [com.alibaba.emas.devops.plugin.BashPlugin]
11:16:46 bash plugin start
11:16:46 script:
11:16:46 #!/bin/bash
11:16:46 if [ -f "$EMAS_RUNNER_WORK_DIR/.git_ssh" ]; then
11:16:46 export GIT_SSH="$EMAS_RUNNER_WORK_DIR/.git_ssh"
11:16:46 fi
11:16:46 function try()
11:16:46 {
11:16:46 [[ $- = e ]]; SAVED_OPT_E=$?
11:16:46 set +e
11:16:46 }
11:16:46 function throw()
11:16:46 {
11:16:46 exit $1
11:16:46 }
11:16:46 function catch()
11:16:46 {
11:16:46 export ex_code=$?
11:16:46 (( $SAVED_OPT_E )) && set +e
11:16:46 return $ex_code
11:16:46 }
11:16:46 function throwErrors()
11:16:46 {
11:16:46 set -e
11:16:46 }
11:16:46 function ignoreErrors()
11:16:46 {
11:16:46 set +e
11:16:46 }
11:16:46 try
11:16:46 (
11:16:46 throwErrors
11:16:46 pwd
11:16:46 )
11:16:46 catch || {
11:16:46 echo "[ERROR] exit $ex_code"
11:16:46 exit $ex_code
11:16:46 }

11:16:47 perform failed
11:16:47 PluginException(errorCode=503, description=generate shell exception)
11:16:47 at com.alibaba.emas.devops.plugin.PluginException.(PluginException.java:21)
11:16:47 at com.alibaba.emas.devops.tools.ShellExecutor.execute(ShellExecutor.java:37)
11:16:47 at com.alibaba.emas.devops.tools.ShellController.execute(ShellController.java:19)
11:16:47 at com.alibaba.emas.devops.plugin.BashPlugin.perform(BashPlugin.java:64)
11:16:47 at com.alibaba.emas.devops.Main.main(Main.java:57)
11:16:47 [ERROR] exit 1
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