Invalid maximum heap size: -Xmx4G The specified size exceeds the maximum representable size. Error: Could not create the Java Virtual Machine. Error: A fatal exception has occurred. Program will exit. org.gradle.process.internal.ExecException:

From a personal perspective, the error message you’ve encountered, “Invalid maximum heap size: -Xmx4G,” along with the subsequent messages, indicates an issue related to specifying a heap size that exceeds the maximum representable size for the Java Virtual Machine (JVM) when running a Gradle build.

Here’s an analysis of the error and a solution:

Analysis:

• The error message “Invalid maximum heap size: -Xmx4G” suggests that you are attempting to set the maximum heap size for the JVM to 4 gigabytes (4G), but this value exceeds the JVM’s maximum supported heap size.
• The subsequent error messages indicate that the JVM cannot be created due to this invalid heap size configuration.

Solution:
To resolve this issue, you should adjust the maximum heap size (Xmx) to a value that is within the limits of your JVM and system configuration. Here’s how you can do it:

1. Lower the Maximum Heap Size:
   Decrease the maximum heap size value to a supported value. You can specify it in megabytes (M) instead of gigabytes (G) if necessary. For example, use “-Xmx1024M” for 1 gigabyte, or adjust it based on your system’s available memory.
2. Example Gradle Configuration:
   Update your Gradle build configuration to set the maximum heap size appropriately. You can do this by modifying the gradle.properties file or using the GRADLE_OPTS environment variable. In gradle.properties:

   org.gradle.jvmargs=-Xmx2G

Alternatively, you can set the GRADLE_OPTS environment variable in your shell:

   export GRADLE_OPTS="-Xmx2G"

Replace “2G” with an appropriate value based on your system’s available memory.

3. Check System Resources:
   Ensure that your system has enough physical memory (RAM) available to support the specified heap size. If your system doesn’t have sufficient memory, you may need to lower the heap size further.
4. Apply Changes:
   After making the necessary adjustments to the maximum heap size, try running your Gradle build again.

Here’s an example of setting the maximum heap size to 2 gigabytes in the gradle.properties file:

org.gradle.jvmargs=-Xmx2G

By specifying a valid maximum heap size, you should be able to run your Gradle build without encountering the “Invalid maximum heap size” error. Adjust the heap size as needed based on your system’s resources and the requirements of your Gradle build.