<PackageVersion Include="Aspire.Hosting.MySql" Version="13.1.0" />
<PackageVersion Include="Aspire.MySqlConnector" Version="13.1.0" />
<PackageVersion Include="CommunityToolkit.Aspire.Hosting.MySql.Extensions" Version="13.1.0" />

{"pid":21,"caller":"connections","name":"serverConnection","connections":["mysql-db"],"level":40,"msg":"Invalid CONNECTIONS configutation, missing ENGINE for connection ID","time":1768482135538}

                                {"pid":21,"caller":"srvconnProcess","name":"serverConnection","errorMessage":"Could not get driver from connection {\"_id\":\"***\",\"useDatabaseUrl\":false,\"defaultDatabase\":null,\"singleDatabase\":false,\"databases\":null,\"useSeparateSchemas\":false,\"globalSettings\":\"***\"}","errorObject":{},"errorStack":"Error: Could not get driver from connection {\"_id\":\"***\",\"useDatabaseUrl\":false,\"defaultDatabase\":null,\"singleDatabase\":false,\"databases\":null,\"useSeparateSchemas\":false,\"globalSettings\":\"***\"}\n    at e.exports (/home/dbgate-docker/bundle.js:2:1320315)\n    at connect (/home/dbgate-docker/bundle.js:2:1255295)\n    at /home/dbgate-docker/bundle.js:2:1256270\n    at process.<anonymous> (/home/dbgate-docker/bundle.js:2:1256275)\n    at process.emit (node:events:514:28)\n    at emit (node:internal/child_process:937:14)\n    at process.processTicksAndRejections (node:internal/process/task_queues:83:21)","level":50,"msg":"Error processing message connect","time":1768482135553}

                                {"pid":1,"caller":"useController","name":"main","errorMessage":"Cannot read properties of null (reading 'passwordMode')","errorObject":{},"errorStack":"TypeError: Cannot read properties of null (reading 'passwordMode')\n    at Object.ensureOpened (/home/dbgate-docker/bundle.js:2:1207185)\n    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)\n    at async Object.structure (/home/dbgate-docker/bundle.js:2:1213085)\n    at async /home/dbgate-docker/bundle.js:2:1324687","level":50,"msg":"Error when processing route /database-connections/structure","time":1768482144252}

Use Aspire 13.1.0

<PackageVersion Include="Aspire.Hosting.MySql" Version="13.1.0" />
<PackageVersion Include="Aspire.MySqlConnector" Version="13.1.0" />
<PackageVersion Include="CommunityToolkit.Aspire.Hosting.MySql.Extensions" Version="13.1.0" />

and setup mysql with dbgate:

var passwordResource = builder.AddParameter("password", "P@ssw0rd");
var database = builder.AddMySql("mysql-db", passwordResource, port: 12562)
    .WithContainerName("mysql-db-volume")
    .WithDbGate()
    .WithAdminer();

Aspire.Hosting.MySql Version="13.1.0"
Aspire.MySqlConnector Version="13.1.0"
CommunityToolkit.Aspire.Hosting.MySql.Extensions Version="13.1.0"