Error: cannot find symbol class DaggerAppComponent

Question

I downloaded several sample projects from github that use dagger, e. g. Moxy sample project (trying to run github-sample) but everywhere there is the same error - «cannot find symbol class DaggerAppComponent». I did not make any changes in the projects just downloaded and tried to run them.

Gradle version - 3.1.2 AndroidStudio – 3.3

def dagger = '2.7'
implementation "com.google.dagger:dagger:$dagger"
annotationProcessor "com.google.dagger:dagger-compiler:$dagger"

Does anybody has an idea how to fix it?

maybe clear all your caches. gradle and (especially) android studio can do really weird things with their cache sometimes. — dedda1994, Jan 17 '19 at 08:56

score 4 · Accepted Answer · edited Jan 17 '19 at 09:09

4

Adding the below dependency.

implementation 'com.google.dagger:dagger:2.x'

annotationProcessor 'com.google.dagger:dagger-compiler:2.x'

OR try this

annotationProcessor 'com.google.dagger:dagger-compiler:2.12'

edited Jan 17 '19 at 09:09

ADM

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answered Jan 17 '19 at 08:51

Kannan panneer selvam

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compile is deprecated and should be swapped for `implementation` or `api`. also this dependency is clearly already in the build file. – dedda1994 Jan 17 '19 at 08:55
Changing dagger version from 2.7 to 2.12 solved the problem! Thank you so much!!! – Svetlana Rozhkova Jan 17 '19 at 08:57
You are Welcome – Kannan panneer selvam Jan 17 '19 at 09:09

score 2 · Answer 2 · answered May 05 '20 at 00:58

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This may not be directly related to what the original poster was looking for but posting this answer for anyone looking to solve a similar error. If you have converted some of your classes to Kotlin then use kapt instead of annotationProcessor in your build.gradle. It is kind of obvious looking back but took me a while to figure out why I'm getting the sysmbol not found error with DaggerAppComponenent without any other details.

answered May 05 '20 at 00:58

Alan

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I've lost one hour, until I found this answer... I needed to use the @Bindable annotation in a kotlin file, which required me to use the kapt-plugin, and then I couldn't build the app anymore. Just replaced annotationProcessor with kapt and it worked! Thanks – Massimo Sep 23 '20 at 09:30

Error: cannot find symbol class DaggerAppComponent

2 Answers2

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