Mac: Unable to configure HTTPS endpoint. No server certificate was specified, and the default developer certificate could not be found or is out of date.
For 3 hours I was dealing with the title error nothing seems to work until I read the answer from hikrikunen where the key was deleting the localhost certificates in the system keychain and then running dotnet dev-certs https –clean and then dotnet dev-certs https -t Uptil the point of deleting the localhost certificates, the
Blazor: having a App/Pages/System folder will kill your app!?
Fun discovery of the day … when building Blazor – having a Pages subfolder called System will completely mess upp the application build. Renaming the folder to SystemX (or anything else for that matter) will make those errors disappears 🙂 This is possibly a result of some local coincidence … but I can reproduce this
Migrating from mssql to postgres in ef6
I was faced with the project of migrating an mssql database to postgres (why? mainly because of licensing fees as we are about to go live with the solution – without any revenues any time soon 🙂 ) This is more a #notetoself if im faced with this again rather than any kind of guideline
EF6 core association table schema definition
Had some problems with the EF6 – working with 2 tables in the UserManagement schema – created an automatic association table in the dbo schema. Look no further than here for an explanation and solution #notetoself
EF6 core – reset migrations during development
In development and while testing various things in EF6 core – I tend to end up with a lot of migration garbage which occasionally I have to take out. This is how it’s done #notetoself Delete all *. cs files in the Migrations Folder. Delete the _MigrationHistory Table in the Database Delete all database tables subject to the migration
EF6 core – load grandchildren in query – the key is ThenLoad
Working with entity: Tournament Which has children: TRound with Course as entity that needs to be loaded based on Id ( as each golf round is played on a Course 🙂 ) ctx.Tournaments.Include(c => c.Trounds).ThenInclude(c => c.Course) Took me a while to figure out why ctx.Tournaments.Include(c => c.Trounds.Select(c => c.Course)) stopped working, but it is
Blazor OnClick doesn’t fire
#notetoself … Once again, scratching my head for way to long about something that turns out to have a simple workaround #devlife On one of my (new) blazor pages (/Bookings/TeeTimes), onclick event was not firing. Didn’t matter what kind of flavour of onclick declaration I used, the event was not getting fired. Until of course
NullPointer exception in SyncFusion Listview (SfListView) #notetoself
If the ListViewFieldSettings element is missing when building Blazor… (build validation or code complete doesn’t catch this mistake) This results in a nullpointer exception which is difficult to debug #notetoself #devlife
Blazor live reload (quickstart #notetoself)
Starting point is Rick Strahl’s github: https://github.com/RickStrahl/Westwind.AspnetCore.LiveReload Add Westwind.AspNetCore.LiveReload Add services.AddLiveReload(); (in startup.cs) Add app.UseLiveReload(); (in startup.cs) Run the app from console: dotnet watch run . Open localhost:5050 (or what everport you have defined) Voila, you have live reload #notetoself
TechTalk – Tænispjall í hádeginu eftir 14. daga
Við erum live c.a. þriðja hvern þriðjudag (þri-þri – auðvelt að muna) en hina 1-2 þriðjudagana á milli munum við hita upp með einhverju skemmtilegu myndskeiði sem leiðir okkur að efnisatriði næsta fundar. Sjáumst “live” eftir 2 vikur.
Docker networking #notetoself
Networking List network setup: docker network ls List: docker network inspect -f ‘{{range .IPAM.Config}}{{.Subnet}}{{end}}’ [networkid] List IPs of all containers. docker network inspect -f ‘{{json .Containers}}’ [networkid] | jq ‘.[] | .Name + “:” + .IPv4Address’ View host setup: docker exec [nameofnode] cat /etc/hosts Running a named container: docker run -name api1 -p 8080:80 gcp-api
SqlException: Invalid column name GolferId
EF6 Core – reconfiguring navigation properties, the runtime was complaining about a column GolferId being missing (invalid database column). Took me a minute to figure out and remember the default foreign key dependency naming convention in EF. Sometimes these frameworks are a bit too intelligent for my taste. Turns out the EF was guessing that
Migrating from DB first EF6 to EF core
Continuing my framework move from .net framework 4.8 to .net 5 (Preview7) I obviously have to take the step moving from a framework Entity Framework to EntityFrameworkCore. A few notes to self regarding the upgrade. The old context generation doesn’t make sense any more. EF core understandably doesn’t have the design options 4.8 (EF 6.2)
Xamarin.Forms Messaging center failing silently
I had a problem with Xamarin.Forms MessagingCenter – as sometimes the messages disappeared. Code that on most occasions worked nicely failed silently and from debug output – the messages never reached the subscription methods. What I eventually found out was happening (after days of frustration) was that one of the subscriptions was updating the UI
APK signertool issue -Java Runtime only recognizes class file versions of up to 52.0
NOTE TO SELF: Signing packages failed. java.lang.UnsupportedClassVersionError: com/android/apksigner/ApkSignerTool has been compiled by a more recent version of Java Runtime(class file version 53.0), this version of the Java Runtime only recognizes class file versions of up to 52.0 https://stackoverflow.com/questions/60441090/apksignertool-issue-with-java-version Confirmed Solution: . I solved it removing version 30.0.0 (rc2) of android build tools
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