Error in SQL script: Only one statement is allowed per batch

I have 4 sql scripts that I want to run in a DACPAC in PostDeployment, but when I try to build the VS project for 3 of them I get this error:

Only one statement is allowed per batch. A batch separator, such as 'GO', might be required between statements.

The scripts contain only INSERT statements in different tables on the DB. And all of them are structured like so

IF NOT EXISTS (SELECT 1 FROM dbo.Criteria WHERE Name = 'Mileage') INSERT INTO dbo.Criteria(Name) VALUES ('Mileage');

only on different tables and with different data.

My question is why is VS complaining about 3 of them when all the scripts are the same in terms of syntax and operations?

PS: Adding 'GO' between statements as the error suggests doesn't do anything.

I have found the problem. When I added the file in VS I forgot to set Build Action = None from the file properties. So changing that fixed the problem and the project now compiles.

Regardless this seems to be pretty old I stuck for some hours with that as well and I think this way could be helpful for many.

In Database project, files set as Build are considered as Database structure so just one statement is allowed in such file by design. Go nor any other batch terminator will change that behavior, that message is just mistake. More info here.

There is lot of other build options for files in such project. For your case it seems that PostDeploy. In such file you could have various commands like inserts etc.

Then you can use output of Database project as dacpac file for Data-Tier DB applications (Otherwise it's not included).