docfx metadata hangs at: Determining projects to restore... Nothing to do. None of the projects specified contain packages to restore.

**Describe the bug**
All of the sudden, when running docfx metadata, I get the message:

Loading project /Users/bart/Develop/anypath/AnyPath/AnyPath.csproj
Determining projects to restore...
Nothing to do. None of the projects specified contain packages to restore.

And nothing happens.

**Expected behavior**
Metadata for the project should be built but instead nothing happens.

**Context (please complete the following information):**
- OS: MacOS Ventura 13.2.1
- Docfx version: 2.77.0

**Additional context**
This is a Unity project with Rider generating the csproj files.
This used to always just work, but all of the sudden it doesn't anymore and I have no
idea what changed.

doxfx.json for metadata:

` "metadata": [
{
"src": [
{
"src" : "../AnyPath/",
"files": [
"AnyPath.csproj"
]
}
],
"dest": "api",
"disableGitFeatures": false,
"globalNamespaceId" : "AnyPath",
"disableDefaultFilter": false,
"filter": "filterConfig.yml"
}`

partial AnyPath.csproj (if it helps?)

`

latest
<_TargetFrameworkDirectories>non_empty_path_generated_by_unity.rider.package
<_FullFrameworkReferenceAssemblyPaths>non_empty_path_generated_by_unity.rider.package
true



Debug
AnyCPU
10.0.20506
2.0
AnyPath
{7792acd9-70d2-b29b-3042-273b6d4beb5a}
{E097FAD1-6243-4DAD-9C02-E9B9EFC3FFC1};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}
Library
Properties
AnyPath
v2.0
512
.


true
full
false
Temp\Bin\Debug\
DEBUG;TRACE;UNITY_2020_3_16;UNITY_2020_3;UNITY_2020;UNITY_5_3_OR_NEWER;UNITY_5_4_OR_NEWER;UNITY_5_5_OR_NEWER;UNITY_5_6_OR_NEWER;UNITY_2017_1_OR_NEWER;UNITY_2017_2_OR_NEWER;UNITY_2017_3_OR_NEWER;UNITY_2017_4_OR_NEWER;UNITY_2018_1_OR_NEWER;UNITY_2018_2_OR_NEWER;UNITY_2018_3_OR_NEWER;UNITY_2018_4_OR_NEWER;UNITY_2019_1_OR_NEWER;UNITY_2019_2_OR_NEWER;UNITY_2019_3_OR_NEWER;UNITY_2019_4_OR_NEWER;UNITY_2020_1_OR_NEWER;UNITY_2020_2_OR_NEWER;UNITY_2020_3_OR_NEWER;PLATFORM_ARCH_64;UNITY_64;UNITY_INCLUDE_TESTS;USE_SEARCH_ENGINE_API;SCENE_TEMPLATE_MODULE;ENABLE_AR;ENABLE_AUDIO;ENABLE_CACHING;ENABLE_CLOTH;ENABLE_MICROPHONE;ENABLE_MULTIPLE_DISPLAYS;ENABLE_PHYSICS;ENABLE_TEXTURE_STREAMING;ENABLE_VIRTUALTEXTURING;ENABLE_UNET;ENABLE_LZMA;ENABLE_UNITYEVENTS;ENABLE_VR;ENABLE_WEBCAM;ENABLE_UNITYWEBREQUEST;ENABLE_WWW;ENABLE_CLOUD_SERVICES;ENABLE_CLOUD_SERVICES_COLLAB;ENABLE_CLOUD_SERVICES_COLLAB_SOFTLOCKS;ENABLE_CLOUD_SERVICES_ADS;ENABLE_CLOUD_SERVICES_USE_WEBREQUEST;ENABLE_CLOUD_SERVICES_CRASH_REPORTING;ENABLE_CLOUD_SERVICES_NATIVE_CRASH_REPORTING;ENABLE_CLOUD_SERVICES_PURCHASING;ENABLE_CLOUD_SERVICES_ANALYTICS;ENABLE_CLOUD_SERVICES_UNET;ENABLE_CLOUD_SERVICES_BUILD;ENABLE_CLOUD_LICENSE;ENABLE_EDITOR_HUB_LICENSE;ENABLE_WEBSOCKET_CLIENT;ENABLE_DIRECTOR_AUDIO;ENABLE_DIRECTOR_TEXTURE;ENABLE_MANAGED_JOBS;ENABLE_MANAGED_TRANSFORM_JOBS;ENABLE_MANAGED_ANIMATION_JOBS;ENABLE_MANAGED_AUDIO_JOBS;INCLUDE_DYNAMIC_GI;ENABLE_MONO_BDWGC;ENABLE_SCRIPTING_GC_WBARRIERS;PLATFORM_SUPPORTS_MONO;RENDER_SOFTWARE_CURSOR;ENABLE_VIDEO;PLATFORM_STANDALONE;PLATFORM_STANDALONE_OSX;UNITY_STANDALONE_OSX;UNITY_STANDALONE;ENABLE_GAMECENTER;ENABLE_RUNTIME_GI;ENABLE_MOVIES;ENABLE_NETWORK;ENABLE_CRUNCH_TEXTURE_COMPRESSION;ENABLE_CLUSTER_SYNC;ENABLE_CLUSTERINPUT;ENABLE_SPATIALTRACKING;PLATFORM_UPDATES_TIME_OUTSIDE_OF_PLAYER_LOOP;ENABLE_WEBSOCKET_HOST;ENABLE_MONO;NET_STANDARD_2_0;ENABLE_PROFILER;UNITY_ASSERTIONS;UNITY_EDITOR;UNITY_EDITOR_64;UNITY_EDITOR_OSX;ENABLE_UNITY_COLLECTIONS_CHECKS;ENABLE_BURST_AOT;UNITY_TEAM_LICENSE;UNITY_PRO_LICENSE;ENABLE_CUSTOM_RENDER_TEXTURE;ENABLE_DIRECTOR;ENABLE_LOCALIZATION;ENABLE_SPRITES;ENABLE_TERRAIN;ENABLE_TILEMAP;ENABLE_TIMELINE;ENABLE_LEGACY_INPUT_MANAGER;CSHARP_7_OR_LATER;CSHARP_7_3_OR_NEWER;DEVELOPMENT_BUILD
prompt
4

False
False


pdbonly
true
Temp\bin\Release\
prompt
4

False
False


true
true
false
false
false

`