해당 강의를 실행시 아래와 같은 에러가 발생합니다..!

Exception in thread "main" java.io.IOException: Failed to resolve credentials from ~/.github or the environment.

at org.kohsuke.github.GitHubBuilder.fromCredentials(GitHubBuilder.java:76)

at org.kohsuke.github.GitHub.connect(GitHub.java:137)

at me.whiteship.refactoring._01_smell_mysterious_name._01_before.StudyDashboard.main(StudyDashboard.java:36)

Caused by: java.io.FileNotFoundException: C:\Users\ksw\.github (지정된 파일을 찾을 수 없습니다)

at java.base/java.io.FileInputStream.open0(Native Method)

at java.base/java.io.FileInputStream.open(FileInputStream.java:211)

at java.base/java.io.FileInputStream.<init>(FileInputStream.java:153)

at java.base/java.io.FileInputStream.<init>(FileInputStream.java:108)

at org.kohsuke.github.GitHubBuilder.fromPropertyFile(GitHubBuilder.java:200)

at org.kohsuke.github.GitHubBuilder.fromPropertyFile(GitHubBuilder.java:184)

at org.kohsuke.github.GitHubBuilder.fromCredentials(GitHubBuilder.java:68)

... 2 more

깃헙 관련 문제인거 같은데.. 어떻게 해결해야할까요??