diff --git a/nextgraph/src/local_broker.rs b/nextgraph/src/local_broker.rs
index 6f3b370..2215bcb 100644
--- a/nextgraph/src/local_broker.rs
+++ b/nextgraph/src/local_broker.rs
@@ -257,7 +257,7 @@ pub struct WithCredentialsV0 {
     pub detach: bool, // only used if remote verifier
 }
 
-trait ISession {}
+//trait ISession {}
 
 #[derive(Debug)]
 struct RemoteSession {
diff --git a/ng-app/README.md b/ng-app/README.md
index 216d373..ed626b2 100644
--- a/ng-app/README.md
+++ b/ng-app/README.md
@@ -22,6 +22,7 @@ prerequisites: compile the local SDK
 ```
 cd ../ng-sdk-js
 wasm-pack build --target bundler
+npm install --no-save pkg
 cd ../ng-app
 ```