Invalid spinnaker-gce-account

When trying to setup spinnaker authorization base on https://www.spinnaker.io/setup/security/authorization/, I found this error via stackdriver,
java.lang.IllegalArgumentException: Invalid credentials: spinnaker-gce-account at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.8.0_212] at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[na:1.8.0_212] at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_212] at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[na:1.8.0_212] at org.codehaus.groovy.reflection.CachedConstructor.invoke(CachedConstructor.java:80) ~[groovy-2.5.6.jar:2.5.6] at org.codehaus.groovy.reflection.CachedConstructor.doConstructorInvoke(CachedConstructor.java:74) ~[groovy-2.5.6.jar:2.5.6] at org.codehaus.groovy.runtime.callsite.ConstructorSite$ConstructorSiteNoUnwrap.callConstructor(ConstructorSite.java:84) ~[groovy-2.5.6.jar:2.5.6] at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callConstructor(AbstractCallSite.java:249) ~[groovy-2.5.6.jar:2.5.6] at com.netflix.spinnaker.clouddriver.google.provider.view.GoogleSecurityGroupProvider.deriveResourceId(GoogleSecurityGroupProvider.groovy:233) ~[clouddriver-google.jar:na] at sun.reflect.GeneratedMethodAccessor843.invoke(Unknown Source) ~[na:na] at

I wonder what I was doing wrong