问题描述：项目package之后，在jar包所在文件夹，运行scala程序，报错：No such file or class on classpath:xxxx

如图所示：

解决方法：先占个坑，解决了之后再来回答

问题描述：xshell6中，rz 上传文件失败

Supported escape sequences:
~.  - terminate connection
~B  - send a BREAK to the remote system
~C  - open a command line
~R  - Request rekey (SSH protocol 2 only)
~^Z - suspend ssh
~#  - list forwarded connections
~&  - background ssh (when waiting for connections to terminate)
~?  - this message
~~  - send the escape character by typing it twice
(Note that escapes are only recognized immediately after newline.)

解决方法： rz -be （不懂原因）

问题描述：IDEAL里，maven clean时，报错

报错内容：Failed to execute goal org.apache.maven.plugins:maven-clean-plugin:2.5:clean (default-clean) on project test_ctr_offline_0823: Failed to clean project: Failed to delete D:\work_code\java\test_ctr_offline_0823\target

如图：
原因：其他地方占用该文件，比如我的原因是：我打开了CMD，cd到了该文件夹位置