Quick Summary
The error 'Failed to write core dump. Minidumps are not enabled by default.' in Minecraft indicates that when the game crashed, it was unable to create a detailed report (core dump) to help developers diagnose the cause of the crash because minidumps are disabled. This limits the amount of information available to diagnose problems after a crash.
Common Causes
- Minidumps Disabled: The Minecraft launcher or game configuration has been set up in a way that minidumps (smaller crash reports that are easier to generate and send) are not created automatically upon a crash.
- Insufficient Permissions: The game might lack the necessary permissions to write crash reports to the designated folder. This can happen if the game is being run under a user account with restricted permissions or if the game files are located in a protected directory.
- Storage Issues: Lack of free space on the drive where Minecraft is installed can prevent writing the crash report. Although it fails to write full core dumps, it should still manage to write mini dumps.
- Third-Party Software Interference: Certain third-party software, such as overly aggressive antivirus programs or system optimizers, can interfere with the game's ability to perform debug functions and write core dumps.
Step-by-Step Fixes
Method 1: Enable Minidumps (If Option Exists in Launcher) Show Steps ↓
Step 1: Check in your Minecraft launcher settings for any option regarding crash reports or minidumps. Some launchers provide an explicit option to enable or disable them.
Step 2: If such an option exists, ensure that minidumps are enabled.
Step 3: Restart the Minecraft launcher and try playing the game again to see if this resolves the issue.
Method 2: Run Minecraft as Administrator Show Steps ↓
Step 1: Locate the Minecraft launcher executable.
Step 2: Right-click the executable and select 'Run as administrator'.
Step 3: Launch the game and see if the crash report is generated on a crash.
Note: Running as administrator gives the game elevated permissions, resolving possible permission issues.
Method 3: Verify Game Files Show Steps ↓
Step 1: Use your Minecraft launcher to verify the integrity of the game files.
Step 2: In the launcher locate the installation section.
Step 3: There should be a button or option to verify or repair the game files.
Step 4: Allow the launcher to verify and repair any corrupted or missing files.
Step 5: Launch the game to determine if the error persists.
Method 4: Ensure Sufficient Disk Space Show Steps ↓
Step 1: Check the amount of free space on the drive where Minecraft is installed.
Step 2: Free up space by deleting unnecessary files if the drive is running low on disk space.
Step 3: Ensure that there is at least a few gigabytes of free space for the game to function correctly and write crash reports.
Method 5: Check Antivirus/Security Software Show Steps ↓
Step 1: Check if your Antivirus software is interfering with the game.
Step 2: Look for Minecraft or Java related items in the blocked or quarantined list of the Antivirus.
Step 3: If found, unblock or make an Exception for those items.
Note: Temporarily disabling your Antivirus for testing purposes might reveal a conflict. Re-enable it afterwards and configure it properly to work with the game.