Cannot refer to imported jar-library in Android Studio project

Question

I have imported an external jar-library find-local-devices.jar into Android Studio project. I've put it into libs folder, right-clicked and chosen Add as library, ensured about dependency in build.gradle, cleaned and built again the project - everything as described, e.g., here. , but I cannot still use the classes from jar:

Could somebody tell me what I do wrong?

Hong, sorry for delay. No, I didn't. I included code that I need into the project as a source. — Spectorsky, Nov 17 '18 at 23:37

score 3 · Answer 1 · edited Jun 20 '20 at 09:12

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Try "Invalidate Caches and restart" on Android Studio.

EDIT :

Also try deleting you current module and everything referring to it. And add it as the official google documentation is showing you too. The image is from here : https://developer.android.com/studio/projects/android-library.html

edited Jun 20 '20 at 09:12

Community

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answered Mar 20 '17 at 07:45

James Oanta

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James Oanta, thanks for quick reply, but it doesn;t help. – Spectorsky Mar 20 '17 at 07:52
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@Spectorsky try the above(edited the answer) exactly as the docs are showing you too do it. – James Oanta Mar 20 '17 at 08:01
@JamesOanta Importing a module doesn't mean referring it. – Martin Braun Nov 07 '22 at 17:38

score 0 · Answer 2 · answered Mar 20 '17 at 07:38

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compile fileTree(dir: 'libs', include: ['*.jar'])

try this in gradle file and rebuild

answered Mar 20 '17 at 07:38

Yongho

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정용호, thanks for quick reply. My `build.gradle` already contains `compile fileTree(include: ['*.jar'], dir: 'libs')` in dependencies, and project was cleaned/rebuilt many times. – Spectorsky Mar 20 '17 at 07:40

score 0 · Answer 3 · answered Mar 20 '17 at 07:45

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Try another way of importing jar/aar packages into Android studio.

Goto File -> New Module -> import .JAR/.AAR package -> Select file path and say Finish.

Then add this line in Gradle.

compile project(':your_imported_file_name')

answered Mar 20 '17 at 07:45

Shashidhar Mayannavar

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Shashidhar, thanks for reply. However, it doesn't help. – Spectorsky Mar 20 '17 at 08:12

Cannot refer to imported jar-library in Android Studio project

3 Answers3