338 errors when line added to the manifest.json

[AdyStudios]

I have no Idea its just errors a lot: https://i.kek.sh/YBrQ79Ntowa.png

[idbrii]

The first line indicates that it wasn't added to the manifest correctly.

Your manifest.json should look something like this:

{
  "dependencies": {
    "com.sitterheim.unityresolutiondialog": "https://github.com/sitterheim/UnityResolutionDialog.git#release/stable",
    "com.unity.2d.animation": "3.2.3",
    "com.unity.2d.pixel-perfect": "2.0.4",
    "com.unity.2d.psdimporter": "2.1.4",
    "com.unity.2d.sprite": "1.0.0",
    "com.unity.2d.spriteshape": "3.0.12",
    "com.unity.2d.tilemap": "1.0.0",
    "com.unity.collab-proxy": "1.2.16",
    "com.unity.ide.rider": "1.1.4",
    "com.unity.ide.vscode": "1.2.1",
    "com.unity.test-framework": "1.1.14",
    "com.unity.textmeshpro": "2.1.1",
    "com.unity.timeline": "1.2.15",
    "com.unity.ugui": "1.0.0",
    "com.unity.modules.ai": "1.0.0",
    "com.unity.modules.androidjni": "1.0.0",
    "com.unity.modules.animation": "1.0.0",
    "com.unity.modules.assetbundle": "1.0.0",
    "com.unity.modules.audio": "1.0.0",
    "com.unity.modules.cloth": "1.0.0",
    "com.unity.modules.director": "1.0.0",
    "com.unity.modules.imageconversion": "1.0.0",
    "com.unity.modules.imgui": "1.0.0",
    "com.unity.modules.jsonserialize": "1.0.0",
    "com.unity.modules.particlesystem": "1.0.0",
    "com.unity.modules.physics": "1.0.0",
    "com.unity.modules.physics2d": "1.0.0",
    "com.unity.modules.screencapture": "1.0.0",
    "com.unity.modules.terrain": "1.0.0",
    "com.unity.modules.terrainphysics": "1.0.0",
    "com.unity.modules.tilemap": "1.0.0",
    "com.unity.modules.ui": "1.0.0",
    "com.unity.modules.uielements": "1.0.0",
    "com.unity.modules.umbra": "1.0.0",
    "com.unity.modules.unityanalytics": "1.0.0",
    "com.unity.modules.unitywebrequest": "1.0.0",
    "com.unity.modules.unitywebrequestassetbundle": "1.0.0",
    "com.unity.modules.unitywebrequestaudio": "1.0.0",
    "com.unity.modules.unitywebrequesttexture": "1.0.0",
    "com.unity.modules.unitywebrequestwww": "1.0.0",
    "com.unity.modules.vehicles": "1.0.0",
    "com.unity.modules.video": "1.0.0",
    "com.unity.modules.vr": "1.0.0",
    "com.unity.modules.wind": "1.0.0",
    "com.unity.modules.xr": "1.0.0"
  }
}

Note how each package line except the last ends with the comma.