Unable to add nodes into Replicaset

HI,
Due to different errors,i did mongo package uninstallation and installed it again.And while initiate replicaset by passing all host name am getting below error.

rs.initiate({
… _id : “rs0”,
… members: [
… { _id : 0, host: “abc0a:27019” },
… { _id : 1, host: “abc1a:27019” },
… { _id : 2, host: “abc2a:27019” }
… ]
… })
{
“operationTime” : Timestamp(0, 0),
“ok” : 0,
“errmsg” : "replSetInitiate quorum check failed because not all proposed set members responded affirmatively: abc1a:27019 failed with Error connecting to abc1a:27019 (XX.XX.X.XX:27019) :: caused by :: Connection refused, abc2a:27019 failed with Error connecting to abc2a:27019 (XX.XX.X.XX:27019) :: caused by :: Connection refused,
“code” : 74,
“codeName” : “NodeNotFound”,
“$clusterTime” : {
“clusterTime” : Timestamp(0, 0),
“signature” : {
“hash” : BinData(0,“AAAAAAAAAAAAAAAAAAAAAAAAAAA=”),
“keyId” : NumberLong(0)
}
}
}