hi! i have this problem that when I try to render it loads for 1 seconds and then crashes!

here's the issue report:

---- Minecraft Crash Report ----
// Why did you do that?

Time: 19/01/21 1:52 PM
Description: Exporting video

com.replaymod.render.FFmpegWriter$FFmpegStartupException
at com.replaymod.render.FFmpegWriter.getVideoFile(FFmpegWriter.java:158)
at com.replaymod.render.FFmpegWriter.consume(FFmpegWriter.java:121)
at com.replaymod.render.rendering.VideoRenderer$1.consume(VideoRenderer.java:145)
at com.replaymod.render.rendering.Pipeline$ProcessTask.run(Pipeline.java:142)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)

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

-- Head --
Thread: Render thread
Stacktrace:
at com.replaymod.render.gui.GuiExportFailed.tryToRecover(GuiExportFailed.java:35)

-- Export details --
Details:
Settings: com.replaymod.render.RenderSettings@4178ef21
FFmpeg log: ffmpeg version 4.3.1-2021-01-01-essentials_build-www.gyan.dev Copyright (c) 2000-2021 the FFmpeg developers
built with gcc 10.2.0 (Rev5, Built by MSYS2 project)
configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-lzma --enable-zlib --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-sdl2 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-libass --enable-libfreetype --enable-libfribidi --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-libgme --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libtheora --enable-libvo-amrwbenc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-librubberband
libavutil 56. 51.100 / 56. 51.100
libavcodec 58. 91.100 / 58. 91.100
libavformat 58. 45.100 / 58. 45.100
libavdevice 58. 10.100 / 58. 10.100
libavfilter 7. 85.100 / 7. 85.100
libswscale 5. 7.100 / 5. 7.100
libswresample 3. 7.100 / 3. 7.100
libpostproc 55. 7.100 / 55. 7.100
Input #0, rawvideo, from 'pipe:':
Duration: N/A, start: 0.000000, bitrate: 10368 kb/s
Stream #0:0: Video: rawvideo (BGRA / 0x41524742), bgra, 180x180, 10368 kb/s, 10 tbr, 10 tbn, 10 tbc
document.mp3.mp4: Permission denied

Stacktrace:
at com.replaymod.render.gui.GuiExportFailed.tryToRecover(GuiExportFailed.java:35)
at com.replaymod.render.gui.GuiRenderSettings$7.run(GuiRenderSettings.java:273)
at com.replaymod.core.ReplayMod.lambda$runLater$6(ReplayMod.java:613)
at com.replaymod.core.ReplayMod$$Lambda$2386/1120466008.run(Unknown Source)
at net.minecraft.class_1255.method_18859(class_1255.java:144)
at net.minecraft.class_4093.method_18859(class_4093.java:23)
at net.minecraft.class_1255.method_16075(class_1255.java:118)
at net.minecraft.class_1255.method_5383(class_1255.java:103)
at com.replaymod.core.ReplayMod$ReplayModExecutor.method_5383(ReplayMod.java:575)
at com.replaymod.replay.InputReplayTimer.method_1658(InputReplayTimer.java:81)
at net.minecraft.class_310.method_1523(class_310.java:1012)
at net.minecraft.class_310.method_1514(class_310.java:681)
at net.minecraft.client.main.Main.main(Main.java:215)
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:226)
at net.fabricmc.loader.launch.knot.Knot.init(Knot.java:139)
at net.fabricmc.loader.launch.knot.KnotClient.main(KnotClient.java:27)

-- System Details --
Details:
Minecraft Version: 1.16.4
Minecraft Version ID: 1.16.4
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: 1441667864 bytes (1374 MB) / 2080374784 bytes (1984 MB) up to 2147483648 bytes (2048 MB)
CPUs: 16
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

Same issue, its so anoying...

Same issue, same solution. If the same solution doesn't work for you, you don't have the same issue. Open a separate issue then.

Try removing the .mp3 in the file name and try rendering in an other folder (preferably the default folder)

Try removing the .mp3 in the file name and try rendering in an other folder (preferably the default folder)

how do I render it in a different folder?

Same problem for me,

Try removing the .mp3 in the file name and try rendering in an other folder (preferably the default folder)

how do I render it in a different folder?
I don't know either.

Same problum,I have tried it for many times without other mods.But different issue report:
AL lib: (EE) alc_cleanup: 1 device not closed

Might want to create another issue then @samxiaoLOL