Prisma Engine does not start (PrismaClientInitializationError: null Engine startup failed.)

[urusaich]

What version of Prisma Dart is running?

5.2.1

What version of Prisma CLI is running?

5.22.0

What type of app are you using?

Dart Native (Server/CLI)

What database are you using?

MariaDB

What steps can reproduce the bug?

Hello everyone!
Unfortunately I can't provide the source code now, but I made a dump of the arguments with which the engine starts.
After looking at them, can you please help me?

arguments:

--enable-metrics, --enable-raw-queries, --engine-protocol, json, --port, 0

environment:

SECURITYSESSIONID: 186a3
DATABASE_URL: mysql://game:password@localhost:3306/game
DATABASE_URL_TESTING: mysql://game:password@localhost:3307/game
RUST_BACKTRACE: 1
RUST_LOG: info
OVERWRITE_DATASOURCES: W3sibmFtZSI6ImRiIiwidXJsIjoibXlzcWw6Ly9nYW1lOnBhc3N3b3JkQGxvY2FsaG9zdDozMzA3L2dhbWUifV0=
PRISMA_DML: Ly8gVGhpcyBpcyB0ZXN0aW5nIFByaXNtYSBzY2hlbWEgZmlsZQ==

prisma-query-engine output:

{
  "is_panic": false,
  "message": "Error in data model: Diagnostics { errors: [DatamodelError { span: Span { start: 0, end: 0, file_id: FileId(0) },     message: \"Error validating: You defined no datasource. You must define exactly one datasource.\" }], warnings: [] }",
  "backtrace":"0: __mh_execute_header\n   1: __mh_execute_header\n   2: __mh_execute_header\n   3: __mh_execute_header\n   4: __mh_execute_header\n   5: __mh_execute_header\n   6: __mh_execute_header\n"
}

Both 3306 and 3307 ports and listens.

[medz]

[{"name":"db","url":"mysql://game:password@localhost:3307/game"}]
// This is testing Prisma schema file

Judging from your DML, your schema.prisma content is empty, which is the cause.

[medz]

If your current schema.prisma has the correct datasource and model definitions, you need to re-run prisma generate to generate a new client.

[medz]

Closing as superseded by the new Dart-native ORM merged in #485. This issue belongs to the retired Prisma-based client or its earlier roadmap. The new implementation uses Dart model declarations, independent drivers and single-engine Dart migrations, with no Prisma engine dependency.

The old implementation is no longer being developed. This closure does not claim that every requested feature or platform has been implemented. Please open a new issue against the new implementation with a current reproduction or focused proposal; see the repository README and capability documentation for the supported scope.

Thank you for the report and discussion.