App Router: Chapter 15 Authentication Middleware Error

I’m getting an Error: Cannot find the middleware module after going through the setup for authentication and I’m unsure what the issue is. I’ve doubled checked all code and it aligns with what the course is outlining.

Error: Cannot find the middleware module
at DevServer.runMiddleware (file://C:\code\react_course\nextjs-dashboard\node_modules.pnpm\next@15.3.2_react-dom@19.1.0_react@19.1.0__react@19.1.0\node_modules\next\dist\server\next-server.js:1159:23)
at async DevServer.runMiddleware (file://C:\code\react_course\nextjs-dashboard\node_modules.pnpm\next@15.3.2_react-dom@19.1.0_react@19.1.0__react@19.1.0\node_modules\next\dist\server\dev\next-dev-server.js:270:28)
at async NextNodeServer.handleCatchallMiddlewareRequest (file://C:\code\react_course\nextjs-dashboard\node_modules.pnpm\next@15.3.2_react-dom@19.1.0_react@19.1.0__react@19.1.0\node_modules\next\dist\server\next-server.js:359:26)
at async DevServer.handleRequestImpl (file://C:\code\react_course\nextjs-dashboard\node_modules.pnpm\next@15.3.2_react-dom@19.1.0_react@19.1.0__react@19.1.0\node_modules\next\dist\server\base-server.js:905:28)
at async (file://C:\code\react_course\nextjs-dashboard\node_modules.pnpm\next@15.3.2_react-dom@19.1.0_react@19.1.0__react@19.1.0\node_modules\next\dist\server\dev\next-dev-server.js:371:20)
at async Span.traceAsyncFn (file://C:\code\react_course\nextjs-dashboard\node_modules.pnpm\next@15.3.2_react-dom@19.1.0_react@19.1.0__react@19.1.0\node_modules\next\dist\trace\trace.js:157:20)
at async DevServer.handleRequest (file://C:\code\react_course\nextjs-dashboard\node_modules.pnpm\next@15.3.2_react-dom@19.1.0_react@19.1.0__react@19.1.0\node_modules\next\dist\server\dev\next-dev-server.js:368:24)
at async handleRoute (file://C:\code\react_course\nextjs-dashboard\node_modules.pnpm\next@15.3.2_react-dom@19.1.0_react@19.1.0__react@19.1.0\node_modules\next\dist\server\lib\router-utils\resolve-routes.js:317:33)
at async resolveRoutes (file://C:\code\react_course\nextjs-dashboard\node_modules.pnpm\next@15.3.2_react-dom@19.1.0_react@19.1.0__react@19.1.0\node_modules\next\dist\server\lib\router-utils\resolve-routes.js:572:28)
at async handleRequest (file://C:\code\react_course\nextjs-dashboard\node_modules.pnpm\next@15.3.2_react-dom@19.1.0_react@19.1.0__react@19.1.0\node_modules\next\dist\server\lib\router-server.js:281:96)
at async requestHandlerImpl (file://C:\code\react_course\nextjs-dashboard\node_modules.pnpm\next@15.3.2_react-dom@19.1.0_react@19.1.0__react@19.1.0\node_modules\next\dist\server\lib\router-server.js:452:13)
at async Server.requestListener (file://C:\code\react_course\nextjs-dashboard\node_modules.pnpm\next@15.3.2_react-dom@19.1.0_react@19.1.0__react@19.1.0\node_modules\next\dist\server\lib\start-server.js:158:13)

I figured out that I had my files located at the wrong level :face_with_steam_from_nose:

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