Cannot run tests

[salsolatragus]

I intended to create a PR for DateTime/Duration support, but I fail to get a dev setup where I can run the current tests. Running the tests in ORM gives me:

00:01 +0 -1: loading test/association/one_to_one/simple_test.dart [E]
  Failed to load "test/association/one_to_one/simple_test.dart":
  Unable to spawn isolate: ../postgres/lib/jaguar_query_postgres.dart:12:1: Error: 'A' is exported from both 'package:jaguar_query_postgres/src/types/types.dart' and 'package:jaguar_query/src/core/expression/expression.dart'.
  export 'package:jaguar_query/jaguar_query.dart';
  ^
00:02 +0 -2: loading test/basic/ignore_test.dart [E]
  Failed to load "test/basic/ignore_test.dart":
  Unable to spawn isolate: ../postgres/lib/jaguar_query_postgres.dart:12:1: Error: 'A' is exported from both 'package:jaguar_query_postgres/src/types/types.dart' and 'package:jaguar_query/src/core/expression/expression.dart'.
  export 'package:jaguar_query/jaguar_query.dart';
  ^
00:02 +0 -3: loading test/association/one_to_many/simple_test.dart [E]
  Failed to load "test/association/one_to_many/simple_test.dart":
  Unable to spawn isolate: ../postgres/lib/jaguar_query_postgres.dart:12:1: Error: 'A' is exported from both 'package:jaguar_query_postgres/src/types/types.dart' and 'package:jaguar_query/src/core/expression/expression.dart'.
  export 'package:jaguar_query/jaguar_query.dart';
  ^
00:03 +0 -4: loading test/basic/simple_test.dart [E]
  Failed to load "test/basic/simple_test.dart":
  Unable to spawn isolate: ../postgres/lib/jaguar_query_postgres.dart:12:1: Error: 'A' is exported from both 'package:jaguar_query_postgres/src/types/types.dart' and 'package:jaguar_query/src/core/expression/expression.dart'.
  export 'package:jaguar_query/jaguar_query.dart';
  ^
00:03 +0 -4: Some tests failed.

Am I missing something or is it broken? Some guidance on setting up a dev environment would be nice 😇