How to fix HTTP Error 500.37 - ASP.NET Core app failed to start within the startup time limit error

Hello RebeccaJS in addition to PradeepSharma's suggestion you can benchmark and measure execution time of individual services. Use stopwatch to monitor how long each operation takes.

var stopwatch = Stopwatch.StartNew();

// Initialize middleware here

stopwatch.Stop();

logger.LogInformation($"ConfigureServices took {stopwatch.ElapsedMilliseconds} ms");