完整提示
1 2 3 4 | "C:\Program Files (x86)\Java\jdk1.8.0_141\bin\java.exe" -Dmaven.multiModuleProjectDirectory=E:\IdeaWS\creeper -Xms 512m -Xmx1024m -Duser.language=zh -Dfile.encoding=UTF-8 -Dmaven.home=E:\IdeaWS\soft\apache-maven-3.6.3-bin\apache-maven-3.6.3 -Dclassworlds.conf=E:\IdeaWS\soft\apache-maven-3.6.3-bin\apache-maven-3.6.3\bin\m2.conf "-Dmaven.ext.class.path=D:\Program Files\JetBrains\IntelliJ IDEA 2019.1.4\plugins\maven\lib\maven-event-listener.jar" "-javaagent:D:\Program Files\JetBrains\IntelliJ IDEA 2019.1.4\lib\idea_rt.jar=27851:D:\Program Files\JetBrains\IntelliJ IDEA 2019.1.4\bin" -classpath E:\IdeaWS\soft\apache-maven-3.6.3-bin\apache-maven-3.6.3\boot\plexus-classworlds-2.6.0.jar;E:\IdeaWS\soft\apache-maven-3.6.3-bin\apache-maven-3.6.3\boot\plexus-classworlds.license org.codehaus.classworlds.Launcher -Didea.version2020.1 -s E:\IdeaWS\soft\apache-maven-3.6.3-bin\apache-maven-3.6.3\conf\settings.xml -Dmaven.repo.local=E:\maven\repository clean Error: Could not create the Java Virtual Machine. Error: A fatal exception has occurred. Program will exit. Invalid initial heap size: -Xms |
可以看到

将此处Xms后多余的空格去掉就好
并不需要修改环境变量或者maven/bin配置文件中的任何参数,IDEA中Edit -> Custom VM 中的配置也有一个Xms,不过并不是本次错误的原因