{"code":-1,"reason":"/data/release/node-weapp-demo/node_modules/koa-router/lib/layer.js:38 throw newError( ^ Error: get `/demo`: `middleware` must be a function, not `object` at Layer.
{"code":-1,"reason":"/data/release/node-weapp-demo/node_modules/koa-router/lib/layer.js:38\n throw newError(\n ^\n\nError: get `/demo`: `middleware` must be a function, not `undefined`\n at Layer.
\node_modules\express\lib\router\layer.js:95:5)at R:\Workings\PersWork\web\webpack-demo\node_modules\express\lib\router\index.js:281:22
at Function.process_
:172:12) at Layer.handle [as handle_request] (C:\path\to\my\project\node_modules\express\lib\router\layer.js:172:12)
at Layer.match (C:\path\to\my\project\node_modules\express\li