java.io.FileNotFoundException
Windows 10
java version "1.8.0_202"
Bytecode-Viewer-2.9.22
C:\Users\admin>java -jar F:\ReverseTools\Bytecode-Viewer-2.9.22.jar
https://the.bytecode.club - Created by @Konloch - Bytecode Viewer 2.9.22, Fat-Jar: true
Start up took 2 seconds
Allowing exec:C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.8_3.8.2288.0_x64__qbz5n2kfra8p0\python3.8.exe
java.io.FileNotFoundException: C:\Users\admin.Bytecode-Viewer\bcv_temp\aoksOUnlKBlEAvTNsJlXnlMNaAHyQfih\cn\jiguang\f\g.j (系统找不到指定的路径。)
at java.io.FileInputStream.open0(Native Method)
at java.io.FileInputStream.open(Unknown Source)
at java.io.FileInputStream.
I got this working by right clicking on the jar file, going to Properties, and selecting Unblock under Security at the bottom of the General tab.
For me, it was because I opened it through Windows Search which apparently breaks it. Opening Bytecode Viewer through file explorer works for me.