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Fixing the Could Not Reserve Enough Space for Object Heap Error in Minecraft

Are you an avid Minecraft player who has recently come across the frustrating error message, “Could not reserve enough space for object heap?” If so, you have come to the right place. In this article, we will discuss the possible reasons for this error and the solutions to fix it, including installing/reinstalling JRE 64 Bit, checking Java version, and adding new system variables.

Reasons for the Error:

Several reasons might cause the “Could not reserve enough space for object heap” error in Minecraft. Here is a list of some of the most common ones:

1.

Incorrect JRE Version:

In some cases, the error occurs due to the use of the incorrect Java Runtime Environment version. Minecraft requires 64-bit Java 8 or later versions to run without issues.

If you are using a 32-bit version of JRE or an older version of Java, it can result in this error. 2.

Processor Cannot Handle Heap Size:

A computer’s processor needs to have sufficient speed and processing power to handle a large heap size request. If the processor is outdated or does not meet the necessary requirements, it can lead to the “Could not reserve enough space for object heap” error.

3. Insufficient Free Space:

If your computer’s hard drive does not have enough free space to store the necessary files, Minecraft may not be able to allocate the necessary memory required to run the game properly.

4. Java Cannot Allocate Specified Heap Size:

Sometimes, the issue arises when Java cannot allocate the specified heap size requested.

This can occur due to a variety of reasons, including issues with the JRE installation, outdated drivers, or Java bugs. Solutions to the Error:

Now that we have discussed the reasons for the error let us move to the solutions that you can use to fix it:

1.

Install/Reinstall JRE 64 Bit:

The first solution to try when you encounter the “Could not reserve enough space for object heap” error is to install or reinstall the JRE 64-bit version. Follow these simple steps to do so:

Visit the official Oracle website and download the latest version of JRE 64-bit from there.

Once downloaded, run the installation wizard and follow the instructions. After installation, restart your computer and try launching Minecraft again.

2. Checking Java Version:

Before installing or reinstalling JRE, it is essential to check your Java version and ensure it is the 64-bit version of Java 8 or later.

Here is how to do it:

Click on the search bar on the Windows toolbar and type “Java.”

Select the “Configure Java” option from the search results, and it will open the Java Control Panel. From the General tab, you can see which JRE version you are currently using.

If you are using a 32-bit JRE version, you will need to uninstall it and download and install the correct version of JRE 64-bit. 3.

Adding New System Variable:

Another solution to fix the error is to add new system variables. To do so, follow these simple steps:

Press the Windows key + R and type “sysdm.cpl” in the run box.

Select the “Advanced” tab and click on the “Environment Variables” button. Under System Variables, click on “New” and type “_JAVA_OPTIONS” in the Variable name field and “-Xmx (memory size)G” in the Variable value field.

Replace the (memory size) with the amount of memory you want to allocate to Minecraft, for example, “-Xmx 4G.”

Click “OK” and restart your computer. Conclusion:

In conclusion, encountering the “Could not reserve enough space for object heap” error while playing Minecraft can be infuriating.

In this article, we have discussed the possible reasons for this error and the solutions to fix it, including installing/reinstalling JRE 64 Bit, checking Java version, and adding new system variables. By implementing these solutions, you should be able to resolve the error and enjoy playing Minecraft without further issues.

3) Adding a new system variable

“Could not reserve enough space for object heap” error in Minecraft is a common issue, but fortunately, there are various solutions available for it. One of these solutions is adding a new system variable.

By adding a new system variable, we can increase the heap size allocated to Minecraft, allowing it to run smoothly on our system. In this section, we will discuss the steps to add a Java Options system variable that can help resolve the error.

Steps to add Java Options system variable:

1. Open the Windows Start menu and search for “Environment Variables.”

2.

Click on “Edit the System Environment Variables.”

3. Click on the “Environment Variables” button located near the bottom right of the window.

4. In the “System Variables” section, click on the “New” button.

5. In the “Variable Name” field, type “_JAVA_OPTIONS” (without quotes).

6. In the “Variable Value” field, type “-Xmx512M” (without quotes).

Note: Here, 512 refers to the amount of RAM allocated for Minecraft. You can increase or decrease this value according to your system’s capacity.

However, don’t allocate all memory to Minecraft. Keep aside some memory for other tasks.

7. Click on “OK” to save the system variable.

The new system variable has been added successfully. Now, restart your computer and launch Minecraft.

This time, it should work without any error.

4) Running Minecraft after adjusting for error

After adjusting the system variable, you need to run Minecraft by executing the “run Minecraft” command or using the Minecraft launcher. In this section, we will discuss both options.

Running Minecraft by command:

To run Minecraft using the command prompt, follow the steps below:

1. Open the command prompt by searching for “cmd” in the Windows Start menu.

2. Navigate to the directory where you have installed Minecraft.

Use the “cd” command to change the directory, e.g., cd C:Minecraft

3. Now, execute the run command by typing the following command:

java -Xmx512M -jar minecraft.jar

Note: Replace 512 with the amount of memory you allocated for Minecraft in the “Variable Value” field of the system variable.

Also, replace “minecraft.jar” with the name of the Minecraft jar file that you have installed. 4.

Hit the Enter key, and Minecraft will start running. Running Minecraft using the Minecraft launcher:

To run Minecraft using the Minecraft launcher, follow the steps below:

1.

Launch the Minecraft launcher. 2.

Click on the “Play” button to start Minecraft. 3.

If the error still persists, click on the “Edit Profile” button in the Minecraft launcher. 4.

In the “Java Settings (Advanced)” section, check the box next to “JVM Arguments.”

5. In the text box below, add “-Xmx512M” (without quotes).

6. Save the changes and relaunch Minecraft.

Conclusion:

We have discussed how to add a new system variable to allocate more memory to Minecraft, which can help resolve the “Could not reserve enough space for object heap” error. We have also discussed how to run Minecraft using the command prompt or the Minecraft launcher.

Following these steps can help you enjoy playing Minecraft without any error. In conclusion, encountering the “Could not reserve enough space for object heap” error in Minecraft can be frustrating, but it is solvable.

We have covered various solutions to this error, including installing/reinstalling JRE 64 Bit, checking Java version, and adding a new system variable. By increasing the allocated heap size of Minecraft, it will run smoothly without any error.

We have also explored ways to run Minecraft using the command prompt or Minecraft launcher. By following the steps discussed, players can enjoy playing Minecraft without interruption.

The key takeaway here is that for Minecraft players, it is essential to understand the reasons behind the “Could not reserve enough space for object heap” error and implement the appropriate solutions to address it without experiencing any further issues.

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