Relevant log output or crash report

Oct 13, 2025 by wbrum.org 108 views

What happened?

After searching in my side, I have found special revelants key in the json of the mod, like "": "", "": "" That create a crash on the start of the game with the exit code: 1 The file is mods/tcdcommons-3.12.2+fabric-1.20.1.jar/fabric.mod.json

Steps to reproduce

Juste start the game with cursforge in last version of fabric for 1.20.1

Relevant log output or crash report

[20:46:01] [main/INFO]: Loading Minecraft 1.20.1 with Fabric Loader 0.16.10
[20:46:01] [ForkJoinPool-1-worker-9/WARN]: The mod "betterstats" contains invalid entries in its mod json:
- Unsupported root entry "" at line 26 column 4
- Unsupported root entry "" at line 26 column 92
- Unsupported root entry "" at line 28 column 4
- Unsupported root entry "" at line 28 column 24
[20:46:01] [ForkJoinPool-1-worker-10/WARN]: Mod com_github_rtyley_animated-gif-lib-for-java uses the version animated-gif-lib-1.7 which isn't compatible with Loader's extended semantic version format (Could not parse version number component 'animated'!), SemVer is recommended for reliably evaluating dependencies and prioritizing newer version
[20:46:01] [ForkJoinPool-1-worker-1/WARN]: Mod mr_dungeons_andtaverns uses the version 3.0.3.f which isn't compatible with Loader's extended semantic version format (Could not parse version number component 'f'!), SemVer is recommended for reliably evaluating dependencies and prioritizing newer version
[20:46:01] [ForkJoinPool-1-worker-4/WARN]: Mod ends_delight uses the version refabricated-1.20.1-2.1 which isn't compatible with Loader's extended semantic version format (Could not parse version number component 'refabricated'!), SemVer is recommended for reliably evaluating dependencies and prioritizing newer version
[20:46:01] [ForkJoinPool-1-worker-4/WARN]: Mod getittogetherdrops uses the version fabric-1.20-1.3.1 which isn't compatible with Loader's extended semantic version format (Could not parse version number component 'fabric'!), SemVer is recommended for reliably evaluating dependencies and prioritizing newer version
[20:46:01] [ForkJoinPool-1-worker-9/WARN]: Mod oceansdelight uses the version fdrf-fabric-1.0.2-1.20 which isn't compatible with Loader's extended semantic version format (Could not parse version number component 'fdrf'!), SemVer is recommended for reliably evaluating dependencies and prioritizing newer version
[20:46:01] [ForkJoinPool-1-worker-10/WARN]: The mod "tcdcommons" contains invalid entries in its mod json:
- Unsupported root entry "" at line 27 column 4
- Unsupported root entry "" at line 27 column 198
- Unsupported root entry "" at line 29 column 4
- Unsupported root entry "" at line 29 column 24
[20:46:02] [main/INFO]: Loading 345 mods:
	- addonslib 1.20.1-1.4
	- advancementplaques 1.6.7
	- allthetrims 3.4.3
	- amendments 1.20-1.2.19
	   \-- mixinextras 0.4.1
	- appleskin 2.5.1+mc1.20
	- aquamirae 6
	- aquatictorches 1.0.1
	- architectury 9.2.14
	- artifacts 9.5.13
	   |-- expandability 9.0.4
	   \-- step-height-entity-attribute 1.2.0
	- ash_api 3.0.2+1.20.1
	- balm-fabric 7.3.18
	   \-- kuma_api 20.1.9-SNAPSHOT
	- bcc 4.0.8
	- better-suggestions 1.2.2.1
	- better-trim-tooltips 1.0.1
	- betteradvancements 0.4.2.25
	- bettercombat 1.8.6+1.20.1
	- betterdeserttemples 1.20-Fabric-3.0.3
	   \-- org_reflections_reflections 0.10.2
	- betterdungeons 1.20-Fabric-4.0.4
	- betterendisland 1.20-Fabric-2.0.6
	- betterf3 7.0.2
	- betterfortresses 1.20-Fabric-2.0.6
	- betterjungletemples 1.20-Fabric-2.0.5
	- bettermineshafts 1.20-Fabric-4.0.4
	- betteroceanmonuments 1.20-Fabric-3.0.4
	- betterstats 3.12.6+fabric-1.20.1
	- betterstrongholds 1.20-Fabric-4.0.3
	- betterthanmending 1.3.0
	- betterthirdperson 1.9.0
	- bettertrims 3.2.8
	   \-- mixinextras 0.4.1
	- betterwitchhuts 1.20-Fabric-3.0.3
	- biomemusic 1.20.1-3.4
	- biomeswevegone 1.5.8
	- bookshelf 20.2.13
	- bridgingmod 2.5.1+1.20.1
	- byg 4.0.1.3
	- cardinal-components 5.2.3
	   |-- cardinal-components-base 5.2.3
	   |-- cardinal-components-block 5.2.3
	   |-- cardinal-components-chunk 5.2.3
	   |-- cardinal-components-entity 5.2.3
	   |-- cardinal-components-item 5.2.3
	   |-- cardinal-components-level 5.2.3
	   |-- cardinal-components-scoreboard 5.2.3
	   \-- cardinal-components-world 5.2.3
	- cavebiomesdelight 1.0.4.2-1.20.1
	- cloth-config 11.1.136
	   \-- cloth-basic-math 0.6.1
	- collective 7.94
	- combatroll 1.3.3+1.20.1
	- configurable 2.2.3
	- connectedglass 1.1.12
	- corgilib 4.0.3.3
	   |-- com_electronwill_night-config_core 3.8.0
	   \-- com_electronwill_night-config_toml 3.8.0
	- coroutil 1.20.1-1.3.7
	- craftingtweaks 18.2.5
	- cratedelight 24.11.22-1.20-fabric
	- cratedelightcroptopia 24.12.27-1.20-fabric
	- create 0.5.1-j-build.1631+mc1.20.1
	   |-- com_google_code_findbugs_jsr305 3.0.2
	   |-- flywheel 0.6.11-4
	   |-- milk 1.2.60
	   |    \-- dripstone_fluid_lib 3.0.2
	   |-- porting_lib_accessors 2.3.8+1.20.1
	   |    \-- porting_lib_core 2.3.8+1.20.1
	   |-- porting_lib_base 2.3.8+1.20.1
	   |    |-- porting_lib_attributes 2.3.8+1.20.1
	   |    |-- porting_lib_common 2.3.8+1.20.1
	   |    |-- porting_lib_core 2.3.8+1.20.1
	   |    |-- porting_lib_fluids 2.3.8+1.20.1
	   |    |-- porting_lib_gui_utils 2.3.8+1.20.1
	   |    |-- porting_lib_mixin_extensions 2.3.8+1.20.1
	   |    |-- porting_lib_utility 2.3.8+1.20.1
	   |    \-- reach-entity-attributes 2.4.0
	   |-- porting_lib_brewing 2.3.8+1.20.1
	   |    \-- porting_lib_core 2.3.8+1.20.1
	   |-- porting_lib_client_events 2.3.8<br/>
**v3.12.2+loader-1.20.1 (and later) Json of the mod crash**
===========================================================

**Q&A**
------

### Q: What is the issue with the mod's JSON file?

A: The issue is that the mod's JSON file contains invalid entries, specifically unsupported root entries. This is causing the game to crash when it tries to load the mod.

### Q: What are the specific errors that are causing the crash?

A: The specific errors are:

* Unsupported root entry "" at line 26 column 4
* Unsupported root entry "" at line 26 column 92
* Unsupported root entry "" at line 28 column 4
* Unsupported root entry "" at line 28 column 24

### Q: What is the cause of these errors?

A: The cause of these errors is likely due to a mistake in the mod's JSON file. The mod's author may have accidentally added invalid entries to the file, which is causing the game to crash.

### Q: How can I fix this issue?

A: To fix this issue, you will need to edit the mod's JSON file and remove the invalid entries. You can do this by opening the file in a text editor and deleting the lines that contain the unsupported root entries.

### Q: What are the consequences of not fixing this issue?

A: If you do not fix this issue, the game will continue to crash when it tries to load the mod. This can be frustrating and may cause you to lose progress in your game.

### Q: Can I fix this issue myself?

A: Yes, you can fix this issue yourself by editing the mod's JSON file. However, if you are not comfortable editing JSON files, you may want to ask for help from the mod's author or a more experienced player.

### Q: What should I do if I am not sure how to fix this issue?

A: If you are not sure how to fix this issue, you can try asking for help from the mod's author or a more experienced player. They may be able to provide you with guidance on how to fix the issue.

### Q: Can I prevent this issue from happening in the future?

A: Yes, you can prevent this issue from happening in the future by being more careful when editing the mod's JSON file. Make sure to test the file thoroughly before saving it to ensure that it is valid.

### Q: What are some other common issues that can cause the game to crash?

A: Some other common issues that can cause the game to crash include:

* Outdated mods
* Conflicting mods
* Invalid game settings
* Corrupted game files

### Q: How can I troubleshoot these issues?

A: To troubleshoot these issues, you can try the following:

* Check the game's logs for error messages
* Update your mods to the latest version
* Try disabling conflicting mods
* Check your game settings to ensure that they are valid
* Try reinstalling the game

### Q: Can I get help from the game's developers if I am experiencing issues?

A: Yes, you can get help from the game's developers if you are experiencing issues. They may be able to provide you with guidance on how to fix the issue or offer additional support.

### Q: What are some other resources that I can use to troubleshoot issues?

A: Some other resources that you can use to troubleshoot issues include:

* Online forums and communities
* Game wikis and documentation
* YouTube tutorials and guides
* Reddit and other social media platforms

### Q: Can I report issues to the game's developers?

A: Yes, you can report issues to the game's developers. They may be able to provide you with guidance on how to fix the issue or offer additional support.