Android Studio : Cannot resolve symbol "Truth" (Truth library)

Question

After coming across this gist : https://gist.github.com/chemouna/00b10369eb1d5b00401b, I noticed it was using the Google Truth library : https://google.github.io/truth/. So I started by following the procedure to add the library in my build.gradle file in Android Studio:

buildscript {
  repositories.mavenLocal()
}

dependencies {
  testImplementation "com.google.truth:truth:0.40"
}

But when I wanted to add the static imports for Truth’s entry points for my assertions java class:

import static com.google.common.truth.Truth.assertThat;
import static com.google.common.truth.Truth.assertWithMessage;

I got the error that the symbol Truth cannot be resolved. I tried to rebuild my project and implement the solutions stated here: AndroidTestCompile dependencies not recognized in the imports, mainly running the following gradle tasks:

but the problem persists.

Any help on that?

Should I actually add these lines in my build.gradle file ? :

 buildscript {
  repositories.mavenLocal()
}

if I already have these :

repositories {
   mavenCentral()
   jcenter()
   google()
}

IntelliJ Amiya · Accepted Answer · 2021-11-12T10:23:51.800

15

To use the Java 8 extensions, also include com.google.truth.extensions:truth-java8-extension:0.40.

NOTE

You should call androidTestImplementation

androidTestImplementation "com.google.truth:truth::0.40" // Latest version 1.1.3

edited Nov 12 '21 at 10:23

answered May 21 '18 at 11:43

IntelliJ Amiya

Thank you for your help @IntelliJ Amiya. I added the compile options and the depending in my build.gradle. But when I sync I got this error : Could not find method compileOptions() for arguments [build_4gfl49u8k92u69bygafbqspv9$_run_closure3@3a4b6224] on project ':app' of type org.gradle.api.Project. – ysoa May 21 '18 at 11:51
Should I keep both lines in the dependencies ? : `testImplementation 'com.google.truth:truth:0.40'` and `testImplementation group: 'com.google.truth.extensions', name: 'truth-java8-extension', version: '0.40'` – ysoa May 21 '18 at 11:53
@younes-makhtoum Restart IDE and see https://stackoverflow.com/questions/23796404/could-not-find-method-compile-for-arguments-gradle – IntelliJ Amiya May 21 '18 at 11:53
@younes-makhtoum you can. no problem – IntelliJ Amiya May 21 '18 at 11:54
The problem is still not solved. what pointed you to the fact that I might need to use the Java 8 extensions? From what I understood, it's not mandatory and only required when intending to test specific Java 8 assertions like `Optional` and `Stream`, which is not my case. – ysoa May 21 '18 at 12:04
@younes-makhtoum add `androidTestImplementation "com.google.truth:truth::0.40"` – IntelliJ Amiya May 21 '18 at 12:29
1

Yes! it's fixed now! Thanks a lot. Please update your core response so that I can upvote it and mark it as the right one. – ysoa May 21 '18 at 12:33

score 3 · Answer 2 · answered Aug 02 '20 at 20:17

Add the appropriate dependency to your build file:

testImplementation "com.google.truth:truth:1.0.1"

You need the Java 8 extensions if and only if you're testing Java 8 code (Stream, Optional, etc):

testImplementation "com.google.truth.extensions:truth-java8-extension:1.0.1"

score 1 · Answer 3 · answered Feb 17 '21 at 13:06

1

You need to add mavenCentral to your repositories

repositories {
  mavenCentral()
}
dependencies {
  testImplementation "com.google.truth:truth:1.1.2"
}

answered Feb 17 '21 at 13:06

Thiago

score 0 · Answer 4 · answered Jun 28 '21 at 03:53

0

JUST DON'T FORGET TO USE

mavenCentral() instead of jcenter()

allprojects {
   repositories {
      google()
      mavenCentral()
   }
}

answered Jun 28 '21 at 03:53

ItSNeverLate

score 0 · Answer 5 · answered Feb 08 '22 at 07:58

0

As android Gradle plugin requires java 11. Please update Gradle JDK

answered Feb 08 '22 at 07:58

Tareq Islam

don't forget to resync the project with Gradle file. after JDK upgrade. – Tareq Islam Feb 08 '22 at 07:59

5 Answers5