fix(schema): throw more helpful error when defining a document array …

…using a schema from a different copy of the Mongoose module

Fix #10453

lib/schema.js

@@ -933,11 +933,21 @@ Schema.prototype.interpretAsType = function(path, obj, options) {
       : type[0];
 
     if (cast && cast.instanceOfSchema) {
+      if (!(cast instanceof Schema)) {
+        throw new TypeError('Schema for array path `' + path +
+          '` is from a different copy of the Mongoose module. Please make sure you\'re using the same version ' +
+          'of Mongoose everywhere with `npm list mongoose`.');
+      }
       return new MongooseTypes.DocumentArray(path, cast, obj);
     }
     if (cast &&
         cast[options.typeKey] &&
         cast[options.typeKey].instanceOfSchema) {
+      if (!(cast[options.typeKey] instanceof Schema)) {
+        throw new TypeError('Schema for array path `' + path +
+          '` is from a different copy of the Mongoose module. Please make sure you\'re using the same version ' +
+          'of Mongoose everywhere with `npm list mongoose`.');
+      }
       return new MongooseTypes.DocumentArray(path, cast[options.typeKey], obj, cast);
     }