# Splitstack not working

**URL:** <https://forum.serverless.com/t/splitstack-not-working/21094>\
**Category:** Serverless Framework\
**Created:** [March 28, 2025, 9:32am UTC](https://forum.serverless.com/t/splitstack-not-working/21094 "2025-03-28T09:32:13Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![kendjr](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.serverless.com/kendjr/32/8316_2.png) [@kendjr](https://forum.serverless.com/u/kendjr)\
**Post date:** [March 28, 2025, 9:32am UTC](https://forum.serverless.com/t/splitstack-not-working/21094/1 "2025-03-28T09:32:13Z")

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I am receiving an error that I am unable to deploy because my root stack exceeded 500 resources, and splitstack is not working as expected. Is there anything else I can try?  
the error is:  
Error: The CloudFormation template is invalid: Template format error: Number of resources, 537, is greater than maximum allowed, 500

The plugin is executing, but not working correctly. It is creating stacks, but still leaving the root stack in excess of 500  
Packaging hamlethub for stage dev (us-east-1)  
Creating Swagger file…  
[serverless-plugin-split-stacks]: Summary: 215 resources migrated into 14 nested stacks  
[serverless-plugin-split-stacks]: ├─ (root): 536  
[serverless-plugin-split-stacks]: │ ├─ Outputs: 31  
[serverless-plugin-split-stacks]: │ └─ Parameters: 0 (References: 618)  
[serverless-plugin-split-stacks]: ├─ APINestedStack: 98  
[serverless-plugin-split-stacks]: │ ├─ Outputs: 78  
[serverless-plugin-split-stacks]: │ └─ Parameters: 0 (References: 194)  
[serverless-plugin-split-stacks]: ├─ AddAssetNestedStack: 1  
[serverless-plugin-split-stacks]: │ ├─ Outputs: 0  
[serverless-plugin-split-stacks]: │ └─ Parameters: 1 (References: 0)  
[serverless-plugin-split-stacks]: ├─ AlarmsNestedStack: 2  
[serverless-plugin-split-stacks]: │ ├─ Outputs: 0  
[serverless-plugin-split-stacks]: │ └─ Parameters: 1 (References: 0)  
[serverless-plugin-split-stacks]: ├─ ApproveSuggestionNestedStack: 1  
[serverless-plugin-split-stacks]: │ ├─ Outputs: 0  
[serverless-plugin-split-stacks]: │ └─ Parameters: 1 (References: 0)  
[serverless-plugin-split-stacks]: ├─ CropImageNestedStack: 1  
[serverless-plugin-split-stacks]: │ ├─ Outputs: 0  
[serverless-plugin-split-stacks]: │ └─ Parameters: 1 (References: 0)  
[serverless-plugin-split-stacks]: ├─ DeleteUserNestedStack: 1  
[serverless-plugin-split-stacks]: │ ├─ Outputs: 0  
[serverless-plugin-split-stacks]: │ └─ Parameters: 1 (References: 0)  
[serverless-plugin-split-stacks]: ├─ ManageSuggestionsNestedStack: 1  
[serverless-plugin-split-stacks]: │ ├─ Outputs: 0  
[serverless-plugin-split-stacks]: │ └─ Parameters: 1 (References: 0)  
[serverless-plugin-split-stacks]: ├─ PermissionsNestedStack: 99  
[serverless-plugin-split-stacks]: │ ├─ Outputs: 0  
[serverless-plugin-split-stacks]: │ └─ Parameters: 102 (References: 0)  
[serverless-plugin-split-stacks]: ├─ PoliciesNestedStack: 3  
[serverless-plugin-split-stacks]: │ ├─ Outputs: 0  
[serverless-plugin-split-stacks]: │ └─ Parameters: 1 (References: 0)  
[serverless-plugin-split-stacks]: ├─ RepostAssetNestedStack: 1  
[serverless-plugin-split-stacks]: │ ├─ Outputs: 0  
[serverless-plugin-split-stacks]: │ └─ Parameters: 1 (References: 0)  
[serverless-plugin-split-stacks]: ├─ SearchHubNestedStack: 2  
[serverless-plugin-split-stacks]: │ ├─ Outputs: 0  
[serverless-plugin-split-stacks]: │ └─ Parameters: 1 (References: 0)  
[serverless-plugin-split-stacks]: ├─ SubscribeHubNestedStack: 1  
[serverless-plugin-split-stacks]: │ ├─ Outputs: 0  
[serverless-plugin-split-stacks]: │ └─ Parameters: 1 (References: 0)  
[serverless-plugin-split-stacks]: ├─ SubscriptionsNestedStack: 3  
[serverless-plugin-split-stacks]: │ ├─ Outputs: 0  
[serverless-plugin-split-stacks]: │ └─ Parameters: 1 (References: 0)  
[serverless-plugin-split-stacks]: └─ UnsubscribeHubNestedStack: 1  
[serverless-plugin-split-stacks]: ├─ Outputs: 0  
[serverless-plugin-split-stacks]: └─ Parameters: 1 (References: 0)

✔ Service packaged (217s)  
I have tried many different ways to use the plugin. This is the latest which produced the output above:  
splitStacks:  
perFunction: true  
perType: true  
maxStackResources: 200  
nestedStacks:  
CustomResourcesStack:  
resources:  
- ElastiCacheSubnetGroup  
- ElastiCacheCluster  
- GatewayResponseDefault4XX  
- SesTemplate  
- CognitoUserPool  
- CognitoUserPoolClient  
- ApiGatewayAuthorizer  
- CognitoIdentityPool  
- CognitoIdentityPoolRoles  
- CognitoAuthRole  
- GoogleUserPoolIdentityProvider  
DMSStack:  
resources:  
- DmsMigrationDocdbToOpensearch  
- DmsOpenSearchEndpoint  
- DmsDocumentDbEndpoint  
- MyDmsReplicationSubnetGroup  
- DmsInstance  
OpenSearchStack:  
resources:  
- OpenSearchDomain  
- OpenSearchRole  
SchedulerStack:  
resources:  
- SchedulerRole  
- JobScheduleGroup  
- AssetsScheduleGroup  
- AssetIndexesScheduleGroup  
S3Stack:  
resources:  
- TemplatesBucket  
- ImagesBucket  
- BucketPolicy  
- RealtorsBucket  
- RealtorsBucketPolicy  
ElastiCacheStack:  
resources:  
- ElastiCacheSubnetGroup  
- ElastiCacheCluster  
ApiGatewayStack:  
resources:  
- GatewayResponseDefault4XX  
- ApiGatewayAuthorizer  
SESStack:  
resources:  
- SesTemplate  
- NewsletterConfigurationSet  
- NewsletterConfigurationSetEventDestination  
CognitoStack:  
resources:  
- CognitoUserPool  
- CognitoUserPoolClient  
- CognitoIdentityPool  
- CognitoIdentityPoolRoles  
- CognitoAuthRole  
- GoogleUserPoolIdentityProvider  
- FacebookUserPoolIdentityProvider  
EC2Stack:  
resources:  
- EC2Tunnel  
DocDBStack:  
resources:  
- DBClusterParameterGroup  
- DBCluster  
- DBInstance  
- DBSubnetGroup  
VPCStack:  
resources:  
- PubPrivateVPC  
- PublicSubnet1  
- PrivateSubnet1  
- PrivateSubnet2  
- InternetGateway  
- GatewayToInternet  
- PublicRouteTable  
- PublicRoute  
- PublicSubnet1RouteTableAssociation  
- NatGateway  
- NatPublicIP  
- PrivateRouteTable  
- PrivateRoute  
- PrivateSubnet1RouteTableAssociation  
- PrivateSubnet2RouteTableAssociation  
- PrivateRouteTableSES  
- PublicRouteTableSES  
- PrivateRouteSES  
- PrivateSubnet1RouteTableAssociationSES  
- SESEndpoint  
- VpcEndpointSecurityGroup  
- VpcEndpointLambdaSecurityGroup  
SQSStack:  
resources:  
- NewsletterHubsQueue  
- NewsletterUsersQueue  
- NewsletterFeedbackQueue  
- TemplateJobsQueue  
- PostponedAssetsQueue  
- NewAssetsQueue  
- NewsletterFeedbackQueuePolicy  
SNSStack:  
resources:  
- CloudWatchTopic  
- EmailSubscriptionAdmin  
- EmailSubscriptionDev  
- NewsletterFeedbackTopic  
- FeedbackTopicSubscription  
CloudWatchStack:  
resources:  
- DbCPUMetricAlarm  
- DbConnectionsMetricAlarm

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**Author:** ![beenmeckel](https://avatars.discourse-cdn.com/v4/letter/b/8dc957/32.png) [@beenmeckel](https://forum.serverless.com/u/beenmeckel)\
**Post date:** [April 29, 2025, 7:06pm UTC](https://forum.serverless.com/t/splitstack-not-working/21094/2 "2025-04-29T19:06:32Z")

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It is probably a tool running in a background blocking the key in tarkov: usual suspects are any kind of overlays, dell display manager, nvidia geforce experience / amd (shortcuts).  
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