您好，我正在尝试使用 Grunt 构建 Camunda Web App。但它报告无法建立 Github 服务器连接。如何解决？
Windows 7、Git、Maven 和 NodeJS 均在环境变量“path”中设置。
C:\Workspace\CamundaSourceCode\camunda-bpm-webapp>grunt setup
Will start the platform with command
mvn clean install jetty:run -DskipTests -Pdevelop,livereload
Tests are skipped
Running "parallel:clone" (parallel) task
Cloning into 'camunda-bpm-sdk-js'...
Cloning into 'camunda-commons-ui'...
Cloning into 'camunda-admin-ui'...
Cloning into 'camunda-cockpit-ui'...
Cloning into 'camunda-tasklist-ui'...
Cloning into 'camunda-cockpit-plugin-base'...
The authenticity of host 'github.com (192.30.252.130)' can't be established.
RSA key fingerprint is 16:27:ac:a5:76:28:2d:36:63:1b:56:4d:eb:df:a6:48.
Are you sure you want to continue connecting (yes/no)? The authenticity of host 'github.com (192.30.252.130)' can't be established.
RSA key fingerprint is 16:27:ac:a5:76:28:2d:36:63:1b:56:4d:eb:df:a6:48.The authenticity of host 'github.com (192.30.252.130)' can't be established.
RSA key fingerprint is 16:27:ac:a5:76:28:2d:36:63:1b:56:4d:eb:df:a6:48.
Are you sure you want to continue connecting (yes/no)? Are you sure you want to continue connecting (yes/no)? The authenticity of host 'github.com (192.30.252.130)' can't be established.
RSA key fingerprint is 16:27:ac:a5:76:28:2d:36:63:1b:56:4d:eb:df:a6:48.
Are you sure you want to continue connecting (yes/no)? The authenticity of host 'github.com (192.30.252.130)' can't be established.
RSA key fingerprint is 16:27:ac:a5:76:28:2d:36:63:1b:56:4d:eb:df:a6:48.
Are you sure you want to continue connecting (yes/no)? The authenticity of host 'github.com (192.30.252.130)' can't be established.
RSA key fingerprint is 16:27:ac:a5:76:28:2d:36:63:1b:56:4d:eb:df:a6:48.
Are you sure you want to continue connecting (yes/no)? yes
Please type 'yes' or 'no': yes
Please type 'yes' or 'no': yes
Please type 'yes' or 'no':
Host key verification failed.
fatal: Could not read from remote repository.
Please make sure you have the correct access rights
and the repository exists.
>>
Warning: Task "parallel:clone" failed. Use --force to continue.
Aborted due to warnings.
C:\Workspace\CamundaSourceCode\camunda-bpm-webapp>