Android Studio 2.1 Error converting bytecode to dex

Question

I am getting the following error since I updated the android studio from 2.0 to 2.1.

Error:Error converting bytecode to dex:

Cause: Dex cannot parse version 52 byte code. This is caused by library dependencies that have been compiled using Java 8 or above. If you are using the 'java' gradle plugin in a library submodule add targetCompatibility = '1.7' sourceCompatibility = '1.7' to that submodule's build.gradle file.

I tried adding the following snippet in build.gradle, but still the issue persists

    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_7
        targetCompatibility JavaVersion.VERSION_1_7
    }

I saw some of the questions similar to this, but neither of the questions answered. Can anyone help me to solve this? Thanks in advance.

No. I am not using any such modules. I had solved this by replacing the SDK with the old one. Now the studio is working fine. — Suresh Kumar, May 13 '16 at 06:22
Which SDK u replaced to solve this, Please can you explain how u solved it. — Adi, Mar 07 '17 at 15:32
@Adi I replaced with the previous SDK that I had before updating the latest SDK. I had the copy of the older SDK. — Suresh Kumar, Mar 08 '17 at 06:07

score 33 · Answer 1 · answered May 23 '16 at 12:16

33

Try

allprojects {
    tasks.withType(JavaCompile) {
        sourceCompatibility = "1.7"
        targetCompatibility = "1.7"
    }
}

in the main build.gradle file

answered May 23 '16 at 12:16

sbeliakov

2,169
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Saved me a couple of hours of pain. Thank you! – Adrian Oct 03 '16 at 13:56
Working great! Thanks. – Ugurcan Yildirim Oct 19 '16 at 14:32
1

not working for me!! I am trying to create and encrypt a pdf file using itext and I m getting the same error @sbeliakov – Akash Dubey Oct 21 '16 at 12:35

score 2 · Answer 2 · answered May 23 '16 at 12:29

2

Remove the dependencies from build.gradle, comment relevant code and then compile and clean your project.

After a successful clean add the dependencies again and uncomment what you commented after removing the dependencies earlier.

answered May 23 '16 at 12:29

Viral Patel

32,418
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Matteo Milesi · Answer 3 · 2017-06-29T17:32:18.397

Possibile duplicate of Android: Dex cannot parse version 52 byte code. The most quoted answer solved the problem for me.
I added compileOptions and jackOptions as shown below to my build.gradle to use JDK 1.8.

android {
    ...
    defaultConfig {
        ...        
        jackOptions {
            enabled true
        }
    }
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
}

Android Studio 2.1 Error converting bytecode to dex

3 Answers3

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