在Hyperledger Fabric创建时遵循AWS的模板指南：
我收到的错误是，
00:11:38 UTC+0550 ROLLBACK_IN_PROGRESS AWS::CloudFormation::Stack hyperledger The following resource(s) failed to create: [FabricEC2CommonStack]. . Rollback requested by user.
00:11:38 UTC+0550 CREATE_FAILED AWS::CloudFormation::Stack FabricEC2CommonStack Template error: Fn::Select cannot select nonexistent value at index 1
Client Request Token:Console-CreateStack-1a328c93-6162-48d8-b84d-62dff9da3783
00:11:36 UTC+0550 CREATE_IN_PROGRESS AWS::CloudFormation::Stack FabricEC2CommonStack
00:11:32 UTC+0550 CREATE_IN_PROGRESS AWS::CloudFormation::Stack hyperledger User Initiated
请建议