The mod is trying to use the obfuscated class path as the mixin target, but in 2026 we no longer have obfuscation.
[15:41:29] [main/INFO]: Loading Minecraft 26.2 with Fabric Loader 0.19.3
[15:41:29] [main/INFO]: Mappings not present!
[15:41:29] [main/INFO]: Loading 50 mods:
- computercraft 1.120.1
|-- cc_tweaked_cobalt 0.9.9
|-- com_electronwill_night-config_core 3.8.4
|-- com_electronwill_night-config_toml 3.8.4
|-- io_netty_netty-codec-socks 4.2.15
\-- io_netty_netty-handler-proxy 4.2.15
- crossstitch 0.1.7
- fabric-api 0.155.2+26.2
|-- fabric-api-base 2.0.4+ece063239e
|-- fabric-api-lookup-api-v1 2.0.17+11e1c9a39e
|-- fabric-biome-api-v1 18.0.6+c7bd5b8e9e
|-- fabric-block-api-v1 3.0.3+ec56b6019e
|-- fabric-block-getter-api-v2 2.0.7+ec56b6019e
|-- fabric-command-api-v2 3.1.0+00cb03469e
|-- fabric-content-registries-v0 11.3.0+d0a699d09e
|-- fabric-convention-tags-v2 4.7.0+1f023a9e9e
|-- fabric-crash-report-info-v1 1.0.5+086d547a9e
|-- fabric-creative-tab-api-v1 5.0.14+d871b99e9e
|-- fabric-data-attachment-api-v1 2.2.17+aa0fd6fe9e
|-- fabric-data-generation-api-v1 25.4.5+b190d6f59e
|-- fabric-debug-api-v1 1.0.2+c792624d9e
|-- fabric-dimensions-v1 5.1.10+5ed499069e
|-- fabric-entity-events-v1 5.0.5+06488ac19e
|-- fabric-events-interaction-v0 5.2.6+8f57f7ee9e
|-- fabric-game-rule-api-v1 4.0.8+46a6d00c9e
|-- fabric-item-api-v1 14.3.0+583e0a5f9e
|-- fabric-key-mapping-api-v1 2.0.5+e2bdee789e
|-- fabric-lifecycle-events-v1 4.1.3+4575b05f9e
|-- fabric-loot-api-v3 3.0.17+06488ac19e
|-- fabric-menu-api-v1 2.0.16+086d547a9e
|-- fabric-message-api-v1 7.0.7+086d547a9e
|-- fabric-model-loading-api-v1 8.0.15+c80601bb9e
|-- fabric-networking-api-v1 6.3.3+72073ef09e
|-- fabric-object-builder-api-v1 24.1.0+6fcd5f039e
|-- fabric-particles-v1 5.0.18+d1756aa99e
|-- fabric-permission-api-v1 1.0.3+b7020ca29e
|-- fabric-recipe-api-v1 9.0.20+11e1c9a39e
|-- fabric-registry-sync-v0 7.1.0+c7bd5b8e9e
|-- fabric-renderer-api-v1 14.1.2+2b0d8a229e
|-- fabric-renderer-indigo 9.1.2+2b0d8a229e
|-- fabric-rendering-fluids-v1 6.0.4+06488ac19e
|-- fabric-rendering-v1 25.3.1+6988455e9e
|-- fabric-resource-conditions-api-v1 6.1.0+10e9a28b9e
|-- fabric-resource-loader-v0 3.3.20+4fc5413f9e
|-- fabric-resource-loader-v1 2.0.13+9edec1269e
|-- fabric-screen-api-v1 5.1.0+48e3c0b09e
|-- fabric-serialization-api-v1 2.0.4+11a26f319e
|-- fabric-sound-api-v1 2.0.5+11a26f319e
|-- fabric-tag-api-v1 2.1.3+794df31d9e
|-- fabric-transfer-api-v1 8.0.11+39b5a3929e
\-- fabric-transitive-access-wideners-v1 8.1.4+67c847259e
- fabricloader 0.19.3
\-- mixinextras 0.5.4
- fabricproxy-lite 2.12.0
\-- com_moandjiezana_toml_toml4j 0.7.2
- java 25
- minecraft 26.2
[15:41:29] [main/INFO]: SpongePowered MIXIN Subsystem Version=0.8.7 Source=file:/D:/Minecraft/_MinersOnline/CityWorld/libraries/net/fabricmc/sponge-mixin/0.17.3+mixin.0.8.7/sponge-mixin-0.17.3+mixin.0.8.7.jar Service=Knot/Fabric Env=SERVER
[15:41:29] [main/INFO]: Compatibility level set to JAVA_25
[15:41:30] [main/WARN]: Error loading class: net/minecraft/class_2641$class_7232 (java.lang.ClassNotFoundException: net/minecraft/class_2641$class_7232)
[15:41:30] [main/WARN]: @Mixin target net/minecraft/class_2641$class_7232 was not found crossstitch.mixins.json:command.CommandTreeSerializationMixin from mod crossstitch
The mod is trying to use the obfuscated class path as the mixin target, but in 2026 we no longer have obfuscation.