How to work with ProjectionsManager, getting error

I have this bit of code to check if the projection exists and if it does not add it, however I get “One or more errors occurred…” message when trying to ListAllAsync.

private static IPEndPoint CreateIpEndPoint(string host, int port)


var address = IPAddress.Parse(host);

return new IPEndPoint(address, port);


    private async Task EnsureProjectionExists(IPEndPoint endPoint)
        var pm = new ProjectionsManager(this.eventStoreLogger, endPoint, TimeSpan.FromSeconds(10));
        var projectionName = "allNonSystemEvents";

        var projections = await pm.ListAllAsync(EventStoreCredentials.Default);

        var allNonSystemEventsProjection = projections.SingleOrDefault(x => x.Name == projectionName);

        if (allNonSystemEventsProjection == null)
            var query = @"
                                        $any : function(s,e) {
                                            if (e.eventType && !e.eventType.startsWith('$'))
                                                linkTo('allNonSystemEvents', e);

            await pm.CreateContinuousAsync(projectionName, query, trackEmittedStreams: true);

        await pm.EnableAsync(projectionName);