Make compile.

packages/help-extension/style/index.css

@@ -6,6 +6,7 @@
 /* This file was auto-generated by ensurePackage() in @jupyterlab/buildutils */
 @import url('~@phosphor/widgets/style/index.css');
 @import url('~@jupyterlab/apputils/style/index.css');
+@import url('~@jupyterlab/inspector/style/index.css');
 @import url('~@jupyterlab/mainmenu/style/index.css');
 
 @import url('./base.css');

packages/help-extension/tsconfig.json

@@ -15,6 +15,9 @@
     {
       "path": "../coreutils"
     },
+    {
+      "path": "../inspector"
+    },
     {
       "path": "../mainmenu"
     },

packages/inspector-extension/src/index.ts

@@ -82,7 +82,7 @@ const inspector: JupyterFrontEndPlugin<IInspector> = {
         inspector.isDisposed ||
         !inspector.isAttached ||
         !inspector.isVisible,
-      label: label;
+      label,
       iconClass: args =>
         args.isLauncher ? 'jp-MaterialIcon jp-InspectorIcon' : '',
       execute: () => openInspector()

packages/mainmenu-extension/tsconfig.json

@@ -15,9 +15,6 @@
     {
       "path": "../coreutils"
     },
-    {
-      "path": "../inspector"
-    },
     {
       "path": "../mainmenu"
     },