Add warnings in remote mode

packages/wrangler/src/api/startDevWorker/ConfigController.ts

@@ -236,6 +236,7 @@ async function resolveConfig(
 		entrypoint: entry.file,
 		directory: entry.directory,
 		bindings,
+		migrations: input.migrations ?? config.migrations,
 		sendMetrics: input.sendMetrics ?? config.send_metrics,
 		triggers: await resolveTriggers(config, input),
 		env: input.env,
@@ -317,6 +318,18 @@ async function resolveConfig(
 			"Queues are currently in Beta and are not supported in wrangler dev remote mode."
 		);
 	}
+
+	if (
+		resolved.migrations?.some(
+			(m) =>
+				Array.isArray(m.new_sqlite_classes) && m.new_sqlite_classes.length > 0
+		) &&
+		resolved.dev?.remote
+	) {
+		throw new UserError(
+			"SQLite in Durable Objects is only supported in local mode."
+		);
+	}
 	return resolved;
 }
 export class ConfigController extends Controller<ConfigControllerEventMap> {

packages/wrangler/src/dev.tsx

@@ -618,6 +618,18 @@ export async function startDev(args: StartDevOptions) {
 			);
 		}
 
+		if (
+			args.remote &&
+			config.migrations?.some(
+				(m) =>
+					Array.isArray(m.new_sqlite_classes) && m.new_sqlite_classes.length > 0
+			)
+		) {
+			throw new UserError(
+				"SQLite in Durable Objects is only supported in local mode."
+			);
+		}
+
 		const projectRoot = configPath && path.dirname(configPath);
 
 		const devEnv = new DevEnv();