Can't find or load main class

I installed the module globally via yarn and executed:
downloadMinecraft 1.13.2 1.13.2.jar client
This worked just fine. Now I tried
runMinecraft ./ 1.13.2 <my username> <my password>
But after that the first time i get something like:

User logged in !
{ AssertionError [ERR_ASSERTION]: wrong size for C:\Users\derPi\Desktop\WrapTest\/assets/objects/d8/d859c9c5be04ffc41479b306814a933983eaa2     35
    at fs.stat.then.stats (C:\Users\derPi\AppData\Local\Yarn\Data\global\node_modules\minecraft-wrap\lib\launcher_download.js:182:45)
  generatedMessage: false,
  name: 'AssertionError [ERR_ASSERTION]',
  code: 'ERR_ASSERTION',
  actual: 23232,
  expected: 27101,
  operator: '==' }

And the second attempt:

User logged in !
Client prepared !
.Error: Could not find or load main class net.minecraft.client.main.Main
.Java HotSpot(TM) 64-Bit Server VM warning: Using incremental CMS is deprecated and will likely be removed in a future release

I don't know whats wrong here

Reproduce the global Yarn installation and the runMinecraft ./ 1.13.2 <username> <password> command, then inspect lib/launcher_download.js around line 182. Compare the reported asset-size failure with the later missing net.minecraft.client.main.Main error. Done means the client preparation completes and the command loads the main class without either error.