你好亲爱的社区和技术爱好者，我用PostgreSQL 12.5创建了一个新的Play framwork 2.8项目。

postgreSql中没有auto_increment。这只是（小而大的）串行PostgreSQL-AUTO INCREMENT。

但是，Play尝试使用auto_increment创建一个表。这样做不顺利是合乎逻辑的。

create table project_type (
  id bigint auto_increment not null,
  name varchar (255),
  constraint pk_project_type primary key (id)
);

psql -V
psql (PostgreSQL) 12.5 (Ubuntu 12.5-0ubuntu0.20.04.1)

play version: addSbtPlugin ("com.typesafe.play"% "sbt-plugin"% "2.8.5")

我的配置有什么问题？

application.conf

play {

    modules {
        enabled += "play.api.db.DBModule"
        enabled += "play.api.db.HikariCPModule"
    }
    ebean.default = ["models.*"]
    crypto.secret = "aKr4Mfn!vKzDjfhfdJRsakgbPS35!!HVDldkosGHRT"
}

applyEvolutions.default=true
db.default{
    driver = org.postgresql.Driver
    url= "jdbc:postgresql://localhost:5432/meineSeite"
    username = "andi1"
    password = "andi1"
}

# Root logger:
logger=ERROR

# Logger used by the framework:
logger.play=INFO

# Logger provided to your application:
logger.application=DEBUG

build.sbt

name := """meineSeite"""
organization := "com.af86"

version := "1.0-SNAPSHOT"

lazy val root = (project in file("."))
  .enablePlugins(PlayJava, PlayEbean)
  .settings(
    name := "play-java-ebean-example",
    version := "1.0.0-SNAPSHOT",
    scalaVersion := "2.13.1",
    libraryDependencies ++= Seq(
      guice,
      jdbc,
      javaJdbc,
      "mysql" % "mysql-connector-java" % "5.1.41",
      "org.postgresql"     % "postgresql"   % "9.3-1102-jdbc41",
      "org.postgresql" % "postgresql" % "42.2.12",
      "javax.xml.bind"     % "jaxb-api"     % "2.3.1",
      "javax.activation"   % "activation"   % "1.1.1",
      "org.glassfish.jaxb" % "jaxb-runtime" % "2.3.2"
    )
  )

scalaVersion := "2.13.3"

plugins.sbt

// The Play plugin
addSbtPlugin("com.typesafe.play" % "sbt-plugin" % "2.8.5")

// Defines scaffolding (found under .g8 folder)
// http://www.foundweekends.org/giter8/scaffolding.html
// sbt "g8Scaffold form"
addSbtPlugin("org.foundweekends.giter8" % "sbt-giter8-scaffold" % "0.11.0")

addSbtPlugin("com.typesafe.play" % "sbt-plugin" % "2.8.5")

addSbtPlugin("com.typesafe.sbt" % "sbt-play-ebean" % "5.0.2")