The game crashed whilst initializing game
Error: java.lang.RuntimeException: Could not execute entrypoint stage 'client' due to errors!

---- Minecraft Crash Report ----
// I'm sorry, Dave.

Time: 30/06/19 15:15
Description: Initializing game

java.lang.RuntimeException: Could not execute entrypoint stage 'client' due to errors!
at net.fabricmc.loader.entrypoint.hooks.EntrypointUtils.logErrors(EntrypointUtils.java:45)
at net.fabricmc.loader.entrypoint.hooks.EntrypointClient.start(EntrypointClient.java:35)
at net.minecraft.class_310.method_1503(class_310.java)
at net.minecraft.class_310.method_1514(class_310.java:395)
at net.minecraft.client.main.Main.main(Main.java:154)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at net.fabricmc.loader.game.MinecraftGameProvider.launch(MinecraftGameProvider.java:170)
at net.fabricmc.loader.launch.knot.Knot.init(Knot.java:126)
at net.fabricmc.loader.launch.knot.KnotClient.main(KnotClient.java:26)
Suppressed: java.lang.NoClassDefFoundError: net/fabricmc/fabric/api/resource/IdentifiableResourceReloadListener
at com.mamiyaotaru.voxelmap.fabricmod.FabricModVoxelMapBootstrapper.onInitializeClient(FabricModVoxelMapBootstrapper.java:10)
at net.fabricmc.loader.entrypoint.hooks.EntrypointClient$$Lambda$1347/680533991.accept(Unknown Source)
at net.fabricmc.loader.entrypoint.hooks.EntrypointUtils.lambda$logErrors$0(EntrypointUtils.java:38)
at net.fabricmc.loader.entrypoint.hooks.EntrypointUtils$$Lambda$1346/1881258837.accept(Unknown Source)
at java.util.ArrayList.forEach(ArrayList.java:1249)
at net.fabricmc.loader.entrypoint.hooks.EntrypointUtils.logErrors(EntrypointUtils.java:36)
... 11 more
Caused by: java.lang.ClassNotFoundException: net.fabricmc.fabric.api.resource.IdentifiableResourceReloadListener
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at net.fabricmc.loader.launch.knot.KnotClassLoader.loadClass(KnotClassLoader.java:160)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 17 more

A detailed walkthrough of the error, its code path and all known details is as follows:

-- Head --
Thread: Client thread
Stacktrace:
at net.fabricmc.loader.entrypoint.hooks.EntrypointUtils.logErrors(EntrypointUtils.java:45)
at net.fabricmc.loader.entrypoint.hooks.EntrypointClient.start(EntrypointClient.java:35)
at net.minecraft.class_310.method_1503(class_310.java)

-- Initialization --
Details:
Stacktrace:
at net.minecraft.class_310.method_1514(class_310.java:395)
at net.minecraft.client.main.Main.main(Main.java:154)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at net.fabricmc.loader.game.MinecraftGameProvider.launch(MinecraftGameProvider.java:170)
at net.fabricmc.loader.launch.knot.Knot.init(Knot.java:126)
at net.fabricmc.loader.launch.knot.KnotClient.main(KnotClient.java:26)

-- System Details --
Details:
Minecraft Version: 1.14.2
Operating System: Windows 10 (amd64) version 10.0
Java Version: 1.8.0_51, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 1331313552 bytes (1269 MB) / 1610612736 bytes (1536 MB) up to 2147483648 bytes (2048 MB)
JVM Flags: 8 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
Launched Version: fabric-loader-0.4.3+build.134-1.14.2+build.7
LWJGL: 3.2.1 build 12
OpenGL: NO CONTEXT
GL Caps:
Using VBOs: Yes
Is Modded: Definitely; Client brand changed to 'fabric'
Type: Client (map_client.txt)
Resource Packs: ERROR NullPointerException: null
Current Language: ERROR NullPointerException: null
CPU:

You need to install fabric api from https://www.curseforge.com/minecraft/mc-mods/fabric-api/files

Just drop the latest jar folder in the mods directory.

I had fabric for Minecraft 1.14.2, installed which worked perfectly, however when I upgraded to Minecraft 1.14.3 and downloaded Fabric for 1.14.3 installed it and added the latest Fabric api the Minecraft launcher crashes every time select the frabric-loader-1.14.13 profile which says it is fabric-loader-0.4.8+build.155-1.14.3 Sorry I have no crash report, the button to print one is there, but it does not give me a crash report. The fabric api I installed was 0.3.0+build 187 Was I supposed to uninstall the 1.14.2 version? I did not because I am still playing on some server that use 1.14.2. If I do need to uninstall the previous version, how do I do it?

This seems to be a mod issue and not something wrong with fabric.

Feel free to seek more support on the fabric discord or the mods issue trackers.