diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -1,13 +1,4 @@
 ### raketka
-
-    note : package build may fail 
-
-    due to version clash between aeson, vector, primitive packages
-    
-    https://github.com/ciez/vector is a patched version of vector-0.11.0.0
-
-
-
     * basic distributed-process node
     * configurable peers
 
@@ -40,4 +31,3 @@
     
             1. path to config.json (see test-conf.json)
             2. idx of this node in the cluster: 0 .. (length Cluster -1)    
-         
diff --git a/changelog.md b/changelog.md
--- a/changelog.md
+++ b/changelog.md
@@ -1,3 +1,7 @@
+#####  1.1.2
+    fix broken build. Reason: API change in dependency network-transport-tcp
+    split Main to 2 funs  
+
 #####  1.1.1
     change common state from TVar s to s
     
diff --git a/raketka.cabal b/raketka.cabal
--- a/raketka.cabal
+++ b/raketka.cabal
@@ -1,8 +1,8 @@
 name:                raketka
-version:             1.1.1
+version:             1.1.2
 build-type:          Simple
-synopsis:            basic distributed-process node with configurable peers
-description:         start multiple nodes, let them communicate. 
+synopsis:            distributed-process node
+description:         peer node with simplelocalnet backend 
                      
 author:              Imants Cekusins
 maintainer:          Imants Cekusins
@@ -32,8 +32,9 @@
   ghc-options:  -fwarn-unused-imports  
     
   build-depends:       base >=4.8 && <5.0,
-                       binary, 
-                       containers, 
+                       binary,
+                       bytestring,
+                       containers,
                        stm,
                        distributed-process,
                        distributed-process-simplelocalnet,
@@ -73,6 +74,15 @@
   main-is:             Main.hs
   ghc-options:  -fwarn-unused-imports         
   other-modules:      Control.Distributed.Raketka.Impl.Inst
+                      Control.Distributed.Raketka.HandleMsg
+                      Control.Distributed.Raketka.Master
+                      Control.Distributed.Raketka.NewServerInfo
+                      Control.Distributed.Raketka.NodeId
+                      Control.Distributed.Raketka.Process.Send
+                      Control.Distributed.Raketka.Process.Server
+                      Control.Distributed.Raketka.Type.Arg
+                      Control.Distributed.Raketka.Type.Message
+                      Control.Distributed.Raketka.Type.Server
 
   build-depends:       base >=4.8 && <5.0,
                        binary,
@@ -130,8 +140,7 @@
                         TemplateHaskell
                         ConstraintKinds
 
-
-  main-is: Main.hs
+  main-is: TestMain.hs
 
   build-depends:  base >= 4.8,
                   hspec >= 2.1.7,
diff --git a/src/Control/Distributed/Raketka/Impl/Inst.hs b/src/Control/Distributed/Raketka/Impl/Inst.hs
--- a/src/Control/Distributed/Raketka/Impl/Inst.hs
+++ b/src/Control/Distributed/Raketka/Impl/Inst.hs
@@ -26,12 +26,19 @@
     startServer (Tagged id0) _ = server id0 
 
     onPeerConnected::Tagged Slb Server_slb -> ProcessId -> Process ()
-    onPeerConnected (Tagged s0) pid0 =
-        say $ printf "connected to %s" pid0
-    
+    onPeerConnected (Tagged s0) = tracePid "connected to %s"
+
     onPeerDisConnected::Tagged Slb Server_slb -> ProcessId -> Process ()
-    onPeerDisConnected (Tagged s0) pid0 =
-        say $ printf "disconnected %s" pid0
+    onPeerDisConnected (Tagged s0) = tracePid "disconnected %s"
+
+
+tracePid::String    -- ^ formattable string with a placeholder for pid
+        -> ProcessId
+        -> Process ()
+tracePid msg0 pid0 =
+        trace msg1 $
+        pure ()
+        where msg1 = printf msg0 pid0
 
 
 server::ServerId -> Process ()
diff --git a/src/Control/Distributed/Raketka/NodeId.hs b/src/Control/Distributed/Raketka/NodeId.hs
--- a/src/Control/Distributed/Raketka/NodeId.hs
+++ b/src/Control/Distributed/Raketka/NodeId.hs
@@ -3,10 +3,21 @@
 import Control.Distributed.Process
 import Network.Transport.TCP
 import Control.Distributed.Raketka.Type.Arg
+import Network.Transport ( EndPointAddress(..) )
+import qualified Data.ByteString.Char8 as BSC (pack)
+import qualified Network.Socket as N
 
 
 -- | this library does not try to discover peers. Config hints nodes to try to connect to
 nodeId::ServerId -> NodeId
 nodeId id0 = NodeId $ encodeEndPointAddress host1 port1 0
     where host1 = host id0
-          port1 = show $ port id0  
+          port1 = show $ port id0
+
+-- | Encode end point address. From network-transport-tcp Network.Transport.TCP.Internal
+encodeEndPointAddress :: N.HostName
+                      -> N.ServiceName
+                      -> EndPointId
+                      -> EndPointAddress
+encodeEndPointAddress host0 port0 ix0 = EndPointAddress . BSC.pack $
+  host0 ++ ":" ++ port0 ++ ":" ++ show ix0
diff --git a/src/Main.hs b/src/Main.hs
--- a/src/Main.hs
+++ b/src/Main.hs
@@ -18,12 +18,19 @@
 main = do
     [path0, idx0] <- getArgs 
     Right c1 @ (Cluster conf1) <- readParse path0::IO (Either String Cluster)
-    let this1 = conf1 !! (read idx0::Int)
-        thisport1 = show $ port this1
-    backend1 <- initializeBackend (host this1) thisport1
+    let idx1 = read idx0::Int
+    idKnown c1 $ Tagged idx1
+
+
+idKnown::Cluster -> Tagged Slb Int -> IO()
+idKnown cl1@(Cluster cl0) idx1@(Tagged idx0) = do
+    backend1 <- initializeBackend (host id1) thisport1
                     (__remoteTable initRemoteTable)
     node1 <- newLocalNode backend1
     Node.runProcess node1 
-            (master backend1 c1 
-                (Tagged $ read idx0::Tagged Slb Int)
+            (master backend1 cl1 
+                idx1
                 ())
+    where thisport1 = show $ port id1
+          id1 = cl0 !! idx0  
+                
diff --git a/test-conf.json b/test-conf.json
--- a/test-conf.json
+++ b/test-conf.json
@@ -1,16 +1,16 @@
  [
    { 
-    "host": "localhost",
+    "host": "127.0.0.1",
      "port": 54001,
      "service": "hello"
    },
    {
-     "host": "localhost",
+     "host": "127.0.0.1",
      "port": 54002,
      "service": "hello"
    },
    {
-     "host": "localhost",
+     "host": "127.0.0.1",
      "port": 54003,
      "service": "hello"
    }
diff --git a/test/Main.hs b/test/Main.hs
deleted file mode 100644
--- a/test/Main.hs
+++ /dev/null
@@ -1,4 +0,0 @@
-module Main where
-
-main::IO()
-main = pure ()
diff --git a/test/TestMain.hs b/test/TestMain.hs
new file mode 100644
--- /dev/null
+++ b/test/TestMain.hs
@@ -0,0 +1,4 @@
+module TestMain where
+
+main::IO()
+main = pure ()