Failed to determine a suitable driver class (Backend)

[senoramarillo]

Hello,

I followed all step to run the frontend and backend app (IntelliJ Ultimate).
I successfully run the frontend but I still got an error for the backend.

I also also used -Dspring.profiles.active=dev to run the backend and added few things in application-dev.properties:
server.port=5000
spring.jpa.hibernate.ddl-auto=validate
spring.datasource.url = jdbc:postgresql://${DB_HOSTNAME}:${DB_PORT}/${DB_NAME}
spring.datasource.username = ${DB_USERNAME}
spring.datasource.password = ${DB_PASSWORD}
spring.datasource.driver-class-name = org.postgresql.Driver
spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.PostgreSQLDialect
spring.flyway.enabled = false

ERROR MESSAGE:

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APPLICATION FAILED TO START

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Description:
Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured.

Reason: Failed to determine a suitable driver class
Action:
Consider the following:
If you want an embedded database (H2, HSQL or Derby), please put it on the classpath.
If you have database settings to be loaded from a particular profile you may need to activate it (the profiles -Dspring.profiles.active=dev are currently **active).

How can I solve it? Any help is appreciated. Thanks

[senoramarillo]

Anyone?

[tt-fan]

Hi, there. There was a similar ERROR message when I ran the backend app.
Replace ${} with an actual one.
For example: (It works for me. )

spring.datasource.url = jdbc:postgresql://localhost:5432/test
spring.datasource.username = databaseusername
spring.datasource.password = databasepassword

Hope this helps.