找不到处理Execution default-proguard的市场条目
我正在尝试导入一个maven项目（适用于Android的Ignition库， https：//github.com/kaeppler/ignition ），它在“Setup maven plugin connectors”屏幕上给出了6个“Execution default-proguard”错误：
No marketplace entries found to handle android-maven-plugin:3.0.2:proguard in Eclipse. Please see Help for more information. No marketplace entries found to handle Execution default-proguard, in ignited-async-task-sample/pom.xml in Eclipse. Please see Help for more information. No marketplace entries found to handle Execution default-proguard, in ignited http-sample/pom.xml in Eclipse. Please see Help for more information. No marketplace entries found to handle Execution default-proguard, in ignition-core-lib/pom.xml in Eclipse. Please see Help for more information. No marketplace entries found to handle Execution default-proguard, in ignition-location-lib/pom.xml in Eclipse. Please see Help for more information. No marketplace entries found to handle Execution default-proguard, in ignition-location-sample/pom.xml in Eclipse. Please see Help for more information. No marketplace entries found to handle Execution default-proguard, in remote-image- view-sample/pom.xml in Eclipse. Please see Help for more information. 有谁知道这些是什么造成的？