Fix issues related to targetDependency, default path, etc. as proposed in PR #12

It looks like PR #12 proposed some needed fixes which are not covered by testing. We really need test updates before we can merge the remaining fixes proposed in #12, in order to verify that it doesn't break at some random point in the future.

首先查看 PR #12 及其针对 targetDependency 和默认路径提出的更改，然后检查现有测试套件。为这些修复添加覆盖，并验证测试能够防止回归；当 PR #12 中剩余的更改都由测试覆盖时，即表示完成。

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