no, i didn’t modify the daConfig file. I only installed Npgsql via the nuget package. I know that the Schema Modeler could not connect to the database with this version but this was no problem at runtime.
For testing purposes i also tried it with Npgsql version 4.0.9, that didn’t work also.
Btw. the in RO/DA bundled Npgsql.dll has version 4.0.10 but the bundles daConfig file references version 4.0.9.
i could also not reproduce the error while creating a new RO/DA project and using NPGSQL. Therefore i migrated my existing code and classes to this newly created project and it works at excepted.
Maybe the problem only occurs when updating from such an “old” RO/DA Version (8.3.91.1167) to the current version (10.0.0.1457). But i have not time to further test this scenario.