Hi all!

I'm trying to start a course with Android Studio 2.2.1, but when I create a new project I come upon the error message:

failed to resolve com.android.support appcompat-v7 29

Also my Mainactivity.java gives me the error:

Method does not override method from superclass.

I've tried to add the Maven URL, but with no luck.

When I try to rebuild the project I get:

Error:A problem occurred configuring project ':app'.
> Could not resolve all dependencies for configuration ':app:_debugApkCopy'.
> Could not find any version that matches com.android.support:appcompat-v7:29.+.
Versions that do not match:
26.0.0-alpha1
25.3.1
25.3.0
25.2.0
25.1.1
+ 31 more
Required by:
DemoAppTwo:app:unspecified

Does anybody know a solution for this, so that I can start learning to code in android please?
Thanks in advance!

Kind regards,
KevinDP

Nathan Ziegenfuss said:

I have a stock Moto G7 except I added an extra 64 GB sd card to it. I have read that the Gcam should work. The only question I have is there seems to be many versions of the same app, some newer than the last. But is the latest necessarily better ?

Click to expand...

Yes, it is. Google is putting a lot of it's AI processing in the apps, so the new the version the better it should work (mostly). I'd pick that over any others.

LV426, Julia and Sam;

Thanks for all the suggestions. It will take some time to learn what the best of these options may be. Hopefully this post will be resourceful to others in the future.

Turns out uf you open that app (The icon in Settings on my LG G7 ThinQ says Emergency Alerts but when you tap on it it says Wireless Emergency Alerts on the title bar) you can just hold down on the Alert and choose Delete.
Thanks @MoodyBlues!

My fake card was a "Samsung" branded card and when I posted about my problems of files just disappearing someone suggest I check the packaging. The real Samsung uses a holographic stamp that changes colors when you move it around. My "Samsung" card from eBay was just grey. The seller used a copier to duplicate Samsung's packaging. Holographic stamps never show all the colors when copied.

Do a factory reset. Backup everything first