diff --git a/telefunc/node/server/runTelefunc/loadTelefuncFiles.ts b/telefunc/node/server/runTelefunc/loadTelefuncFiles.ts
index 2f79fc10..81d2aa8c 100644
--- a/telefunc/node/server/runTelefunc/loadTelefuncFiles.ts
+++ b/telefunc/node/server/runTelefunc/loadTelefuncFiles.ts
@@ -37,13 +37,28 @@ async function loadTelefuncFiles(runContext: {
   // Vite:
   // - In development, `.telefunc.js` files provided with Vite's development server
   // - In production, `.telefunc.js` files provided with @brillout/vite-plugin-server-entry
-  if (!isWebpack() || isVikeApp()) {
-    const { telefuncFilesLoaded, viteProvider, telefuncFilesAll } = await loadTelefuncFilesWithVite(runContext)
-    assertUsage(Object.keys(telefuncFilesAll).length > 0, getNothingFoundErr(viteProvider))
-    return { telefuncFilesLoaded, telefuncFilesAll }
+  {
+    const res = await loadTelefuncFilesWithVite(runContext)
+    if (res) {
+      const { telefuncFilesLoaded, viteProvider, telefuncFilesAll } = res
+      assertUsage(Object.keys(telefuncFilesAll).length > 0, getNothingFoundErr(viteProvider))
+      return { telefuncFilesLoaded, telefuncFilesAll }
+    } else if (isVikeApp() || !isWebpack()) {
+      // Show [manual import error](https://github.com/brillout/vite-plugin-server-entry#manual-import):
+      // ```
+      // [@brillout/vite-plugin-server-entry][Wrong Usage] The server production entry is missing.
+      // (Re-)build your app and try again. If you still get this error, then you need to manually
+      // import the server production entry.
+      // ```
+      //
+      const res2 = loadTelefuncFilesWithVite(runContext, true)
+      assert(res2 === null)
+      assert(false) // loadTelefuncFilesWithVite() should have called assertUsage()
+    }
   }
 
-  assertUsage(false, "You don't seem to be using Telefunc with a supported stack. Reach out on GitHub.")
+  // No retrieval method found
+  assertUsage(false, `Couldn't find method for retrieving ${pc.cyan('.telefunc.js')} files. Is your stack supported?`)
 }
 
 function getNothingFoundErr(retrievalMethod: string) {
diff --git a/telefunc/node/vite/loadTelefuncFilesWithVite.ts b/telefunc/node/vite/loadTelefuncFilesWithVite.ts
index 7a26ad51..8bb5a3e3 100644
--- a/telefunc/node/vite/loadTelefuncFilesWithVite.ts
+++ b/telefunc/node/vite/loadTelefuncFilesWithVite.ts
@@ -6,12 +6,17 @@ import { telefuncFilesGlobFilePath } from './importGlob/telefuncFilesGlobPath'
 import { loadTelefuncFilesWithImportBuild } from './plugins/importBuild/loadBuild'
 import { getViteDevServer } from '../server/globalContext'
 
-async function loadTelefuncFilesWithVite(runContext: { telefuncFilePath: string }): Promise<{
+async function loadTelefuncFilesWithVite(
+  runContext: { telefuncFilePath: string },
+  failOnFailure?: true,
+): Promise<null | {
   telefuncFilesLoaded: Record<string, Record<string, unknown>>
   telefuncFilesAll: string[]
   viteProvider: 'Vite' | '@brillout/vite-plugin-server-entry'
 }> {
-  const { moduleExports, viteProvider } = await loadGlobImporter()
+  const res = await loadGlobImporter(failOnFailure)
+  if (!res) return null
+  const { moduleExports, viteProvider } = res
   assert(isObject(moduleExports), { moduleExports, viteProvider })
   assert(hasProp(moduleExports, 'telefuncFilesGlob'), { moduleExports, viteProvider })
   const telefuncFilesGlob = moduleExports.telefuncFilesGlob as GlobFiles
@@ -20,7 +25,7 @@ async function loadTelefuncFilesWithVite(runContext: { telefuncFilePath: string
   return { telefuncFilesLoaded, viteProvider, telefuncFilesAll }
 }
 
-async function loadGlobImporter() {
+async function loadGlobImporter(failOnFailure?: true) {
   const viteDevServer = getViteDevServer()
   if (viteDevServer) {
     const devPath = telefuncFilesGlobFilePath
@@ -36,9 +41,13 @@ async function loadGlobImporter() {
     let moduleExports: unknown
     moduleExports = await loadTelefuncFilesWithImportBuild()
     if (moduleExports === null) {
-      await importServerProductionEntry()
+      await importServerProductionEntry({ tolerateNotFound: !failOnFailure })
       moduleExports = await loadTelefuncFilesWithImportBuild()
-      assert(moduleExports)
+      if (failOnFailure) {
+        assert(moduleExports)
+      } else {
+        return null
+      }
     } else {
       assert(moduleExports)
     }