IMPORTANT INFORMATION:
Antivirus apps have been detecting this app as a virus even though it is not. The reason it says so is because of the ability to make false error pop-ups using the app. If you have any problems with the app contact the creators of the MIT App Inventor as if there are any real viruses I wasn't the person who put them in.

In this app you will be able to change the error title error message and error button text.