X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/ee499fb6d4ff05dd13854b0c1f57ef77e939b507..3f38a38ae453390856b3d5cf2b4d5705df06ee13:/sdk/go/keepclient/discover.go

diff --git a/sdk/go/keepclient/discover.go b/sdk/go/keepclient/discover.go
index 726c3fb30c..5eafbbe339 100644
--- a/sdk/go/keepclient/discover.go
+++ b/sdk/go/keepclient/discover.go
@@ -138,6 +138,10 @@ func (kc *KeepClient) discoverServices() error {
 		return nil
 	}
 
+	if kc.Arvados.ApiServer == "" {
+		return fmt.Errorf("Arvados client is not configured (target API host is not set). Maybe env var ARVADOS_API_HOST should be set first?")
+	}
+
 	svcListCacheMtx.Lock()
 	cacheEnt, ok := svcListCache[kc.Arvados.ApiServer]
 	if !ok {