Fixing a Crash That Names Porting Lib as the Cause

Read the crash report first

The crash screen usually points at a class inside a porting_lib package. That does not automatically mean the library is broken. Porting Lib is a shared dependency, so a crash inside it is almost always triggered by the mod that called into it.

Narrowing down the culprit

1. Open the crash report and find the stack trace section.

2. Scan upward from the Porting Lib lines until you reach a class that belongs to a normal gameplay mod. That mod is the one making the failing call.

3. Note whether the trace mentions a specific module, for example networking, transfer, tags, or model loading. The module name tells you what kind of operation failed.

4. Disable the suspect mod and relaunch. If the game starts, you have confirmed the source.

Common patterns

• A networking or transfer error during world join usually means two mods disagree about a packet or inventory format.
• A model or obj_loader error at startup usually means a resource pack or a mod's assets are malformed.
• A tags error usually means a datapack is referencing entries that no longer exist.

In all three cases, update or remove the offending mod or pack rather than the library. If you cannot identify the caller, remove mods in batches until the crash stops, then re-add them one at a time.