Can't run app projects on Android Studio

Question

I am new to Android Studio, and I installed it on Ubuntu 14.04 LTS (64bit).

When I open the project in Android Studio, I get my project files marked with red and the debug configuration button beside the run button is marked with red X as shown in the below image:

Please tell me how to solve this issue.

It is not gradle project. follow theese steps: https://developer.android.com/sdk/installing/migrate.html — Karacago, Sep 15 '15 at 16:32
try this : http://stackoverflow.com/questions/17625345/no-android-facet-found-issues-compiling-with-android-studio-0-2 — crc442, Sep 15 '15 at 16:35

hata · Accepted Answer · 2021-07-03T03:06:28.560

17

One of easy ways:

Close your currently opened project to go back to the welcome screen.
Choose Import Project (Eclipse ADT, Gradle, etc.) from the welcome screen.
Select an Eclipse ADT project to be imported.

edited Jul 03 '21 at 03:06

answered Sep 15 '15 at 16:45

hata

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score 3 · Answer 2 · edited Jun 01 '20 at 05:51

3

The best way to resolve this issue is as follows:

Clean and then rebuild your project
Make your project (it should work by now)
Check your dependencies in gradle
At the very end you can try invalidating the cache and restarting (Recommended)

The problem should be resolved by now.

edited Jun 01 '20 at 05:51

BSMP

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answered Aug 29 '16 at 04:01

Yogesh Pandey

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this isn't useful unless how to do each step is explained, as OP says he's new to AS – Daniel C Jacobs Mar 08 '22 at 17:07

score 0 · Answer 3 · answered Jan 10 '23 at 19:45

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There appears to be a difference between "Open Folder" and "Open Project". If you "Open Folder" in a different project, I think it won't run that folder's project, but whatever project was opened last.

answered Jan 10 '23 at 19:45

patrick

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score -1 · Answer 4 · edited Feb 23 '19 at 11:45

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when i try to run my project it give me the following error

"ERROR: Unable to resolve dependency for ':app@debug/compileClasspath': Could not resolve com.android.support:appcompat-v7:28.0.0.

Disable offline mode and sync project Show Details Affected Modules: app

ERROR: Unable to resolve dependency for ':app@debug/compileClasspath': Could not resolve com.android.support.constraint:constraint-layout:1.1.3.

Disable offline mode and sync project Show Details Affected Modules: app

edited Feb 23 '19 at 11:45

Android

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answered Feb 23 '19 at 08:59

user11105228

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If you have problems, you should post them as a question, not as an answer, this isn't a forum... – Luca Murra Feb 23 '19 at 09:17

Can't run app projects on Android Studio

4 Answers4