does not work

package.json

@@ -2,7 +2,6 @@
   "name": "tinode-webapp",
   "description": "Tinode messenger for the web",
   "version": "0.20.2",
-
   "repository": {
     "type": "git",
     "url": "https://github.com/tinode/example-react-js.git"
@@ -71,7 +70,8 @@
     "react": "^17.0.2",
     "react-dom": "^17.0.2",
     "react-intl": "^5.20.2",
-    "tinode-sdk": "^0.20.2"
+    "tinode-sdk": "^0.20.2",
+    "ts-ebml": "^2.0.2"
   },
   "devDependencies": {
     "@babel/core": "^7.14.5",