Keeps giving me this error message every time i launch
– Minecraft Crash Report ----
// My bad.
Time: 28/06/20 9:45 PM
Description: Initializing game
java.lang.ExceptionInInitializerError
at ema.<init>(SourceFile:66)
at dlx.<init>(SourceFile:394)
at net.minecraft.client.main.Main.main(SourceFile:177)
Caused by: java.nio.file.FileSystemNotFoundException: C:\Users\Andrew
at com.sun.nio.zipfs.ZipFileSystem.<init>(ZipFileSystem.java:120)
at com.sun.nio.zipfs.ZipFileSystemProvider.newFileSystem(ZipFileSystemProvider.java:117)
at java.nio.file.FileSystems.newFileSystem(FileSystems.java:326)
at java.nio.file.FileSystems.newFileSystem(FileSystems.java:276)
at aah.a(SourceFile:52)
at aah$$Lambda$2020/1324750716.accept(Unknown Source)
at v.a(SourceFile:350)
at aah.<clinit>(SourceFile:41)
... 3 more
A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------
– Head –
Thread: Render thread
Stacktrace:
at ema.<init>(SourceFile:66)
at dlx.<init>(SourceFile:394)
– Initialization –
Details:
Stacktrace:
at net.minecraft.client.main.Main.main(SourceFile:177)
– System Details –
Details:
Minecraft Version: 1.16.1
Minecraft Version ID: 38a4b060114547229ff71ecae6b17c38
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: 988786008 bytes (942 MB) / 1946157056 bytes (1856 MB) up to 2147483648 bytes (2048 MB)
CPUs: 8
JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
Launched Version: 1.16.1
Backend library: LWJGL version 3.2.2 SNAPSHOT
Backend API: NO CONTEXT
GL Caps:
Using VBOs: Yes
Is Modded: Probably not. Jar signature remains and client brand is untouched.
Type: Client (map_client.txt)
CPU: <unknown>
Linked issues
Comments

Thank you for your report!
We're tracking this issue in MCL-774, so this ticket is being resolved and linked as a duplicate.
That ticket has already been resolved as invalid, which means this is a technical support issue. Please take a look at the parent ticket (MCL-774) and see if a solution is provided there.
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i have the same problem