Solved: You need to use a Theme.AppCompat theme (or descendant) with this activity

One of those types of annoying errors that'll have you do a lot of work for something that's actually a 2 second job and no real effort.

If you find yourself with an app that crashes with no output, open logcat from visual studio and you'll notice that around the time of our app crash, there's a lot that states 'You need to use a Theme.AppCompat theme (or descendant) with this activity'. At first you'll start to look into the application and where you might change the theme, but in reality, if we go down that route, it could end up changing your entire app look and feel, something which will take a long time to put back to normal.

It turns out that the fix for this issue is actually to clean the Android solution and run again as normal, this will solve the crash and your error will disappear from logcat.

If you run into any issues after cleaning and running where this error is still present, comment below.

My particular setup when I got this error was as follows:

Minimum Android Version: 4.2 (API 17 - Jelly Bean)

Target Android Version: 7.0 (API 24 - Nougat)


Published at

Tags: Android,Xamarin

Luke Alderton

Comments

Post a comment
Sit tight...
We're adding your comment.
Thank you.
Your comment has been added.
There's been a problem.
Please try again later.
Share with
Tags
Latest Comments
By Luke Alderton on Replacing the Xamarin Header/Navigation bar with a custom view/template
17 Jan 2018, 15:30 PM
By Luke Alderton on My experience at Umbraco UK Festival 2017
17 Jan 2018, 14:51 PM
By Victor La Fortuna on Solved: 'Debug/ibTool/LaunchScreen.storyboardc/Info.plist does not exist' Xamarin
10 Jan 2018, 14:32 PM
By Jose Luis on Replacing the Xamarin Header/Navigation bar with a custom view/template
7 Jan 2018, 11:06 AM
By Chris Howarth on My experience at Umbraco UK Festival 2017
28 Dec 2017, 10:32 AM
By Luke Alderton on Xamarin forms - Stop/Cancel back button event
20 Dec 2017, 05:49 AM
By Antony on Xamarin forms - Stop/Cancel back button event
18 Dec 2017, 11:19 AM
By dipbleds on Raspberry Pi - Bluetooth using Bluecove on Raspbian
12 Dec 2017, 21:29 PM
Categories
App Development
Event
Game Development
Mapping
Modelling
Programming
Review
Robotics
Tutorial
Web Development