I tried to run the build of my server but this says this when I run it

Error occurred during initialization of VM
Could not reserve enough space for 1048576KB object heap
Picked up _JAVA_OPTIONS: -Djdk.net.URLClassPath.disableClassPathURLCheck=true
Exception in thread "main" java.lang.RuntimeException: Error running command, return status !=0: [sh, C:\Users\sgg07\Desktop\build\apache-maven-3.5.0/bin/mvn, install:install-file, -Dfile=work\mapped.78ce18fa.jar, -Dpackaging=jar, -DgroupId=org.spigotmc, -DartifactId=minecraft-server, -Dversion=1.13.2-SNAPSHOT]
at org.spigotmc.builder.Builder.runProcess0(Builder.java:685)
at org.spigotmc.builder.Builder.runProcess(Builder.java:630)
at org.spigotmc.builder.Builder.main(Builder.java:391)
at org.spigotmc.builder.Bootstrap.main(Bootstrap.java:29)
anyone have any ideas of how to fix it I tried to lower the ram I tried to look at youtube I tried to restart my computer but nothing