this one should work

cli.js

@@ -121,7 +121,7 @@ function openConsole() {
 function buildMemServerDist() {
   const outputFile = process.argv[3] || 'memserver.dist.js';
   const rollup = child_process.spawnSync('rollup', [
-    '--config', `${require.resolve('memserver')}/rollup.config.js`, '-o', outputFile
+    '--config', `${require.resolve('memserver')}/../../rollup.config.js`, '-o', outputFile
   ]);
 
   console.log(rollup.stderr.toString());

package.json

@@ -1,6 +1,6 @@
 {
   "name": "memserver",
-  "version": "0.8.3",
+  "version": "0.8.4",
   "description": "in-memory database/ORM and http mock server you can run in-browser and node environments. Built for large frontend teams, fast tests and rapid prototyping",
   "main": "lib/index.js",
   "license": "ISC",
@@ -28,7 +28,13 @@
     "jsdom": "^11.3.0",
     "pretender": "^1.6.0",
     "qs": "^6.5.1",
-    "route-recognizer": "^0.3.3"
+    "route-recognizer": "^0.3.3",
+    "rollup": "^0.50.0",
+    "rollup-plugin-commonjs": "^8.2.6",
+    "rollup-plugin-node-builtins": "^2.1.2",
+    "rollup-plugin-node-globals": "^1.1.0",
+    "rollup-plugin-node-resolve": "^3.0.0",
+    "rollup-plugin-virtual": "^1.0.1"
   },
   "devDependencies": {
     "cors": "^2.8.4",
@@ -40,12 +46,6 @@
     "moment": "^2.19.1",
     "pryjs": "^1.0.3",
     "rimraf": "^2.6.2",
-    "rollup": "^0.50.0",
-    "rollup-plugin-commonjs": "^8.2.6",
-    "rollup-plugin-node-builtins": "^2.1.2",
-    "rollup-plugin-node-globals": "^1.1.0",
-    "rollup-plugin-node-resolve": "^3.0.0",
-    "rollup-plugin-virtual": "^1.0.1",
     "sinon": "^4.0.1"
   },
   "@std/esm": {