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Troubleshoot

Below is all the known issues that occur when setting up the project. Use control f to find your error. If its not listed create an issue report.

No main manifest attribute

This error occurs because you need to specify the main-class in the shading plugin inside the pom.xml. RenJa comes with a main class you just have to call it.

Full shading plugin.

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-shade-plugin</artifactId>
                <version>3.2.4</version>
                <executions>
                    <execution>
                        <phase>package</phase>
                        <goals>
                            <goal>shade</goal>
                        </goals>
                        <configuration>
                            <transformers>
                                <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                                    <mainClass>me.piitex.renjava.Main</mainClass>
                                </transformer>
                            </transformers>
                        </configuration>
                    </execution>
                </executions>
            </plugin>

Part that is needed.

                        <configuration>
                            <transformers>
                                <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                                    <mainClass>me.piitex.renjava.Main</mainClass>
                                </transformer>
                            </transformers>
                        </configuration>

UnSupportedClassVersion

This error occurs when you compile your version with the wrong java version.

• 52 = Java 8
• 53 = Java 9
• 54 = Java 10
• 55 = Java 11
• 56 = Java 12
• 57 = Java 13
• 58 = Java 14
• 59 = Java 15
• 60 = Java 16
• 61 = Java 17

RenJa is built using Java 17. Make sure your project sdk is set to java 17 and the compiler options inside of your pom.xml. (RenJa may be using a different Java version. Check the readme.

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