alias error

[nsimariaj]

New alias creation failed for host1, err: open : no such file or directory
compression = none
Connecting to host1:50051

Config used.
{
"host": "host1",
"port": 50051,
"vendor": {
"gnmi": {
"encoding": "protobuf"
}
},
"paths": [{
"path": "/junos/rpm/probe-results/probe-test-results[owner=ICMP1 and test-name=ICMP_test1]/",
"freq": 15000
}

],
"log" : {
    "verbose": true
}

}