Reputation: 497
I'm new to maven but I would like to use it to run simple deeplearing4j program. After adding all the necessary dependencies I get the following:
Error:java: release version 5 not supported
After following the instructions at this page (changing my SDK, language and target byte code to 11)
I'm getting this:
Error:java: java.lang.ExceptionInInitializerError
com.sun.tools.javac.code.TypeTags
Error:java: java.lang.ExceptionInInitializerError
I've also tried setting JDK 14 but I get the same error. Here is my pom.xml file:
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.example</groupId>
<artifactId>Deep</artifactId>
<version>1.0-SNAPSHOT</version>
<properties>
<maven.compiler.source>1.11</maven.compiler.source>
<maven.compiler.target>1.11</maven.compiler.target>
<dl4j.version>0.9.1</dl4j.version>
</properties>
<dependencies>
<dependency>
<groupId>org.nd4j</groupId>
<artifactId>nd4j-native-platform</artifactId>
<version>${dl4j.version}</version>
</dependency>
<dependency>
<groupId>org.deeplearning4j</groupId>
<artifactId>deeplearning4j-core</artifactId>
<version>${dl4j.version}</version>
</dependency>
<dependency>
<groupId>org.datavec</groupId>
<artifactId>datavec-api</artifactId>
<version>${dl4j.version}</version>
</dependency>
<dependency>
<groupId>org.nd4j</groupId>
<artifactId>nd4j-api</artifactId>
<version>1.0.0-beta3</version>
</dependency>
<dependency>
<groupId>org.deeplearning4j</groupId>
<artifactId>deeplearning4j-play_2.11</artifactId>
<version>0.9.1</version>
</dependency>
</dependencies>
</project>
If anybody can shed some light on what I might be doing wrong here I would appreciate it.
Upvotes: 28
Views: 114808
Reputation: 1
I had a similar issue and I was able to solve by changing JDK version from 11 to 8. By the way, this is not running in 8 mode using JDK 11. You actually need a JDK 8 bundle.
Upvotes: 0
Reputation: 788
I have also faced that problem.
Check the JAVA_HOME variable. For ubuntu, go to the terminal and write echo $JAVA_HOME
. If you see the difference between this and java -version
you will need to set the appropriate version of JDK to your JAVA_HOME like below
export JAVA_HOME=YOUR_JDK_BIN_PATH
.
Upvotes: 0
Reputation: 12412
Add this to pom.xml:
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.20</version>
<scope>provided</scope>
</dependency>
Upvotes: 26
Reputation: 5243
It could be a reason of getting this issues while running application Intellij that you haven't configuration Project SDK setting in IDE.
Upvotes: 14
Reputation: 33
If you're using jdk8 to run your project and still face the same error. Please follow the following 2 steps.
Upvotes: 1
Reputation: 1389
I also got this error, when using jdk 10 to compile java8 source code.
After changing environment variable JAVA_HOME
to jdk8 home dir, this error disappear.
Upvotes: 9
Reputation: 1367
This is wrong.
<maven.compiler.source>1.11</maven.compiler.source>
<maven.compiler.target>1.11</maven.compiler.target>
Post Java 1.9, the version naming has changed. Make the following changes in the pom.xml.
<maven.compiler.source>11</maven.compiler.source>
<maven.compiler.target>11</maven.compiler.target>
The same convention follows from 10+ Java version.
The real issue is: one of library org.deeplearning4j:deeplearning4j-core:jar:0.9.1:compile this jar having a dependency on org.projectlombok:lombok:jar:1.16.16:compile.
So this was an issue with Lombok which they fixed in a later version. To see all transitive dependencies you can do a mvn dependency:tree
and see all transitive dependencies of the libraries you have brought in.
I have included the below dependency in the pom and that resolved the issue.
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.2</version>
<scope>provided</scope>
</dependency>
Upvotes: 66