Merge pull request #3425 from NativeScript/kerezov/bundle-both-platforms-fail

feat: fail if bundling both platforms

Author: Mitko-Kerezov

lib/helpers/livesync-command-helper.ts

@@ -31,6 +31,12 @@ export class LiveSyncCommandHelper implements ILiveSyncCommandHelper {
 		await this.$devicesService.detectCurrentlyAttachedDevices({ shouldReturnImmediateResult: false, platform: platform });
 		const devices = this.$devicesService.getDeviceInstances()
 			.filter(d => !platform || d.deviceInfo.platform.toLowerCase() === platform.toLowerCase());
+
+		const devicesPlatforms = _(devices).map(d => d.deviceInfo.platform).uniq().value();
+		if (this.$options.bundle && devicesPlatforms.length > 1) {
+			this.$errors.failWithoutHelp("Bundling doesn't work with multiple platforms. Please specify platform to the run command.");
+		}
+
 		await this.executeLiveSyncOperation(devices, platform, additionalOptions);
 	}