我正在尝试使用以下代码行构建一个jenkins作业，但它失败了。
cd ../../../../../
cd /home/skasturi/sdk/
cp -pr 8.0_Sprint2 8.0_Sprint3
jenkins build的控制台输出：
Building in workspace /var/lib/jenkins/workspace/SMGR_SDK
[SMGR_SDK] $ /bin/sh -xe /tmp/jenkins3461562069624051922.sh
+ cd ../../../../../
+ cd /home/skasturi/sdk/
/tmp/jenkins3461562069624051922.sh: line 3: cd: /home/skasturi/sdk/: Not a directory
Build step 'Execute shell' marked build as failure
Finished: FAILURE
观察者行为可能是什么原因？