I would modify anything in hte "chat settings" but when I click, the game crash and display :
---- Minecraft Crash Report ----
// Why did you do that?
Time: 4/20/17 4:29 PM
Description: Updating screen events
java.lang.NoSuchMethodError: com.mojang.text2speech.Narrator.active()Z
at bhs.a(SourceFile:47)
at bha.c(SourceFile:765)
at bjk.b(SourceFile:42)
at bki.a(SourceFile:350)
at bgy.a(SourceFile:896)
at bkc.a(SourceFile:160)
at bki.a(SourceFile:324)
at bki.k(SourceFile:387)
at bki.p(SourceFile:364)
at bgy.t(SourceFile:1581)
at bgy.ax(SourceFile:964)
at bgy.a(SourceFile:404)
at net.minecraft.client.main.Main.main(SourceFile:123)
A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------
-- Head --
Thread: Client thread
Stacktrace:
at bhs.a(SourceFile:47)
at bha.c(SourceFile:765)
at bjk.b(SourceFile:42)
at bki.a(SourceFile:350)
at bgy.a(SourceFile:896)
at bkc.a(SourceFile:160)
at bki.a(SourceFile:324)
at bki.k(SourceFile:387)
at bki.p(SourceFile:364)
-- Affected screen --
Details:
Screen name: bjk
-- Affected level --
Details:
Level name: MpServer
All players: 1 total; [bte['cercus'/111, l='MpServer', x=296.49, y=4.00, z=-895.60]]
Chunk stats: MultiplayerChunkCache: 555, 555
Level seed: 0
Level generator: ID 01 - flat, ver 0. Features enabled: false
Level generator options:
Level spawn location: World: (299,4,-906), Chunk: (at 11,0,6 in 18,-57; contains blocks 288,0,-912 to 303,255,-897), Region: (0,-2; contains chunks 0,-64 to 31,-33, blocks 0,0,-1024 to 511,255,-513)
Level time: 8016 game time, 8016 day time
Level dimension: 0
Level storage version: 0x00000 - Unknown?
Level weather: Rain time: 0 (now: false), thunder time: 0 (now: false)
Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: false
Forced entities: 47 total; [ze['Pig'/64, l='MpServer', x=313.50, y=4.00, z=-821.50], ze['Pig'/65, l='MpServer', x=316.50, y=4.00, z=-821.50], ze['Pig'/66, l='MpServer', x=312.50, y=4.00, z=-818.50], ze['Pig'/67, l='MpServer', x=310.50, y=4.00, z=-819.50], yy['Cow'/68, l='MpServer', x=323.60, y=4.00, z=-865.09], yy['Cow'/69, l='MpServer', x=321.78, y=4.00, z=-864.74], acm['Slime'/70, l='MpServer', x=326.30, y=4.42, z=-865.54], acm['Slime'/71, l='MpServer', x=338.25, y=5.18, z=-880.47], acm['Slime'/72, l='MpServer', x=334.26, y=5.18, z=-866.08], yy['Cow'/73, l='MpServer', x=334.47, y=4.00, z=-859.46], yy['Cow'/74, l='MpServer', x=322.48, y=4.00, z=-861.34], acm['Slime'/75, l='MpServer', x=324.60, y=4.00, z=-856.33], acm['Slime'/76, l='MpServer', x=332.39, y=5.02, z=-867.38], acm['Slime'/77, l='MpServer', x=337.85, y=4.00, z=-849.47], yy['Cow'/82, l='MpServer', x=339.68, y=4.00, z=-949.42], acm['Slime'/83, l='MpServer', x=337.03, y=4.00, z=-914.90], acm['Slime'/84, l='MpServer', x=340.29, y=4.00, z=-872.56], acm['Slime'/85, l='MpServer', x=333.22, y=4.00, z=-831.28], acm['Slime'/86, l='MpServer', x=358.56, y=4.42, z=-970.51], acm['Slime'/87, l='MpServer', x=359.86, y=4.00, z=-960.16], yy['Cow'/88, l='MpServer', x=358.94, y=4.00, z=-953.45], yy['Cow'/89, l='MpServer', x=357.11, y=4.00, z=-952.21], acm['Slime'/90, l='MpServer', x=367.62, y=4.00, z=-960.29], zh['Sheep'/26, l='MpServer', x=220.50, y=4.00, z=-965.50], yy['Cow'/91, l='MpServer', x=357.14, y=4.00, z=-943.86], zh['Sheep'/27, l='MpServer', x=220.50, y=4.00, z=-966.50], acm['Slime'/28, l='MpServer', x=220.47, y=4.00, z=-901.02], yx['Chicken'/94, l='MpServer', x=372.68, y=4.00, z=-961.63], yx['Chicken'/96, l='MpServer', x=375.04, y=4.00, z=-959.01], bte['cercus'/111, l='MpServer', x=296.49, y=4.00, z=-895.60], yx['Chicken'/97, l='MpServer', x=374.32, y=4.00, z=-959.66], yx['Chicken'/38, l='MpServer', x=232.50, y=4.00, z=-921.50], yx['Chicken'/39, l='MpServer', x=229.13, y=4.00, z=-916.01], yx['Chicken'/40, l='MpServer', x=231.64, y=4.00, z=-927.16], ze['Pig'/41, l='MpServer', x=235.50, y=4.00, z=-923.50], abm['item.item.egg'/42, l='MpServer', x=233.10, y=4.00, z=-920.77], zh['Sheep'/44, l='MpServer', x=261.25, y=4.00, z=-909.47], zh['Sheep'/45, l='MpServer', x=260.32, y=4.00, z=-908.19], zh['Sheep'/46, l='MpServer', x=259.50, y=4.00, z=-906.50], zh['Sheep'/47, l='MpServer', x=261.83, y=4.00, z=-900.61], yx['Chicken'/49, l='MpServer', x=284.40, y=4.00, z=-972.07], acm['Slime'/54, l='MpServer', x=281.95, y=4.00, z=-964.25], acm['Slime'/58, l='MpServer', x=301.69, y=4.00, z=-818.15], acm['Slime'/60, l='MpServer', x=316.63, y=4.00, z=-883.41], acm['Slime'/61, l='MpServer', x=322.48, y=5.02, z=-882.25], acm['Slime'/62, l='MpServer', x=316.01, y=5.17, z=-867.07], acm['Slime'/63, l='MpServer', x=312.70, y=5.25, z=-867.86]]
Retry entities: 0 total; []
Server brand: vanilla
Server type: Integrated singleplayer server
Stacktrace:
at brc.a(SourceFile:365)
at bgy.b(SourceFile:2538)
at bgy.a(SourceFile:413)
at net.minecraft.client.main.Main.main(SourceFile:123)
-- System Details --
Details:
Minecraft Version: 17w16a
Operating System: Windows 10 (amd64) version 10.0
Java Version: 1.8.0_111, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 81191536 bytes (77 MB) / 292093952 bytes (278 MB) up to 1060372480 bytes (1011 MB)
JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
Launched Version: 17w16a
LWJGL: 2.9.4
OpenGL: Intel(R) HD Graphics GL version 4.4.0 - Build 20.19.15.4509, Intel
GL Caps: Using GL 1.3 multitexturing.
Using GL 1.3 texture combiners.
Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.
Shaders are available because OpenGL 2.1 is supported.
VBOs are available because OpenGL 1.5 is supported.
Using VBOs: Yes
Is Modded: Probably not. Jar signature remains and client brand is untouched.
Type: Client (map_client.txt)
Resource Packs:
Current Language: English (United Kingdom)
Profiler Position: N/A (disabled)
CPU: 4x Intel(R) Pentium(R) CPU N3700 @ 1.60GHz
Experiencing the same at a 100% reproduction rate.