打包应用程序时出现Grails 3错误-无法解析配置':gspCompile'的所有依赖项

应用信息:

• Grails版本:3.1.8
• Groovy版本:2.4.6
• JVM版本: 1.8.0_60

• Grails Version: 3.1.8
• Groovy Version: 2.4.6
• JVM Version: 1.8.0_60

我正在运行grails package以获取可运行的存档，但是遇到以下错误:

I'm running grails package to get runnable archives however I come across the following error:

无法解析配置':gspCompile'的所有依赖项. 无法解析javax.servlet:javax.servlet-api:3.1.0. 要求者: app:app:0.1 无法解析javax.servlet:javax.servlet-api:3.1.0. 无法获取资源' https://repo.grails.org/grails/core/javax/servlet/javax.servlet-api/3.1.0/javax.servlet-api-3.1.0.pom " . 无法HEAD' https://repo.grails.org/grails/core/javax/servlet/javax.servlet-api/3.1.0/javax.servlet-api-3.1.0.pom ". 连接到repo.grails.org:443 [repo.grails.org/52.205.225.191，repo.grails.org/23.23.24.228]失败:连接超时:连接

Could not resolve all dependencies for configuration ':gspCompile'. Could not resolve javax.servlet:javax.servlet-api:3.1.0. Required by: app:app:0.1 Could not resolve javax.servlet:javax.servlet-api:3.1.0. Could not get resource 'https://repo.grails.org/grails/core/javax/servlet/javax.servlet-api/3.1.0/javax.servlet-api-3.1.0.pom'. Could not HEAD 'https://repo.grails.org/grails/core/javax/servlet/javax.servlet-api/3.1.0/javax.servlet-api-3.1.0.pom'. Connect to repo.grails.org:443 [repo.grails.org/52.205.225.191, repo.grails.org/23.23.24.228] failed: Connection timed out: connect

Error Command [package] error: Could not execute build using Gradle distribution 'https://services.gradle.org/distributions/gradle-2.13-bin.zip'.

servlet api实际上在grails仓库中(感谢Loucher)，所以我不完全确定为什么会出现此错误.

The servlet api is in fact in the grails repo (thanks to Loucher) so I'm not entirely sure why I'm gettin this error.