Exit code

Exit code -1

The JVM died before it could write a crash report.

What to do

  1. An exit code is the last thing the process said, not the reason it died.
  2. Open the log and find the first Exception or Caused by: line above it.
  3. Paste the whole log into the analyzer — it names the mod for you.

Analyze your log

Errors that end with this code

Exit codesExit code -1073740791 (0xC0000409) — stack buffer overrunA native library crashed, not Java code — almost always the GPU driverExit codesExit code -1073741819 (0xC0000005) — access violationSame family as EXCEPTION_ACCESS_VIOLATION — a native crashExit codesMinecraft exited with code -1Usually the JVM was killed before it could write a crash report