我正在尝试将 google-api-services-datastore-protobuf （请参阅https://developers.google.com/datastore/docs/downloads）与 SBT 一起使用，但它给了我这些错误：
[warn] io problem while parsing ivy file: http://repo1.maven.org/maven2/com/google/apis/google-api-services-datastore-protobuf/v1beta1-rev1-1.0.0-rc1/google-api-services-datastore-protobuf-v1beta1-rev1-1.0.0-rc1.pom: Impossible to load parent for file:/Applications/play-2.1.1/framework/../repository/cache/com.google.apis/google-api-services-datastore-protobuf/ivy-v1beta1-rev1-1.0.0-rc1.xml.original. Parent=com.google.apis#google-api-services-datastore-protobuf-parent;v1beta1-rev1-1.0.0-rc1
[warn] module not found: com.google.apis#google-api-services-datastore-protobuf;v1beta1-rev1-1.0.0-rc1
我对 SBT 还不是很熟悉，所以我也用 maven 尝试过，但我得到了类似的结果：
Failed to read artifact descriptor for com.google.apis:google-api-services-datastore-protobuf:jar:v1beta1-rev2-1.0.1: Could not find artifact com.google.apis:google-api-services-datastore-protobuf-parent:pom:v1beta1-rev2-1.0.1 in central (http://repo1.maven.org/maven2)
看起来父 pom 丢失了。有没有办法解决它或忽略失踪的父母？