I installed 5.2.1 and now I got these errors:
Packages\com.arongranberg.astar\Core\AstarPath.cs(12,19): error CS0234: The type or namespace name ‘Sync’ does not exist in the namespace ‘Pathfinding’ (are you missing an assembly reference?)
Packages\com.arongranberg.astar\Core\Misc\NavmeshEdges.cs(1,19): error CS0234: The type or namespace name ‘Sync’ does not exist in the namespace ‘Pathfinding’ (are you missing an assembly reference?)
Packages\com.arongranberg.astar\Core\Pathfinding\PathProcessor.cs(7,19): error CS0234: The type or namespace name ‘Sync’ does not exist in the namespace ‘Pathfinding’ (are you missing an assembly reference?)
Packages\com.arongranberg.astar\Graphs\Navmesh\Jobs\JobBuildNodes.cs(2,19): error CS0234: The type or namespace name ‘Sync’ does not exist in the namespace ‘Pathfinding’ (are you missing an assembly reference?)
Packages\com.arongranberg.astar\Graphs\Navmesh\Jobs\JobBuildTileMeshFromVertices.cs(8,19): error CS0234: The type or namespace name ‘Sync’ does not exist in the namespace ‘Pathfinding’ (are you missing an assembly reference?)
Packages\com.arongranberg.astar\Graphs\Navmesh\TileBuilder.cs(5,19): error CS0234: The type or namespace name ‘Sync’ does not exist in the namespace ‘Pathfinding’ (are you missing an assembly reference?)
Packages\com.arongranberg.astar\Core\Misc\NavmeshPrefab.cs(9,20): error CS0234: The type or namespace name ‘Sync’ does not exist in the namespace ‘Pathfinding’ (are you missing an assembly reference?)
Packages\com.arongranberg.astar\Core\Pathfinding\HierarchicalGraph.cs(14,20): error CS0234: The type or namespace name ‘Sync’ does not exist in the namespace ‘Pathfinding’ (are you missing an assembly reference?)
Packages\com.arongranberg.astar\Graphs\RecastGraph.cs(12,20): error CS0234: The type or namespace name ‘Sync’ does not exist in the namespace ‘Pathfinding’ (are you missing an assembly reference?)
Packages\com.arongranberg.astar\Core\Misc\NavmeshEdges.cs(105,52): error CS0246: The type or namespace name ‘RWLock’ could not be found (are you missing a using directive or an assembly reference?)
Packages\com.arongranberg.astar\Core\Misc\NavmeshEdges.cs(21,3): error CS0246: The type or namespace name ‘SpinLock’ could not be found (are you missing a using directive or an assembly reference?)
Packages\com.arongranberg.astar\Core\Misc\NavmeshEdges.cs(23,3): error CS0246: The type or namespace name ‘RWLock’ could not be found (are you missing a using directive or an assembly reference?)
Packages\com.arongranberg.astar\Core\Misc\NavmeshEdges.cs(142,18): error CS0246: The type or namespace name ‘SpinLock’ could not be found (are you missing a using directive or an assembly reference?)
Packages\com.arongranberg.astar\Core\RVO\RVOCoreSimulatorBurst.cs(13,20): error CS0234: The type or namespace name ‘Sync’ does not exist in the namespace ‘Pathfinding’ (are you missing an assembly reference?)
Packages\com.arongranberg.astar\Core\RVO\RVOObstacleCache.cs(11,20): error CS0234: The type or namespace name ‘Sync’ does not exist in the namespace ‘Pathfinding’ (are you missing an assembly reference?)
Packages\com.arongranberg.astar\Core\Misc\NavmeshEdges.cs(142,28): error CS0208: Cannot take the address of, get the size of, or declare a pointer to a managed type (‘SpinLock’)
Packages\com.arongranberg.astar\Core\Pathfinding\PathProcessor.cs(282,57): error CS0246: The type or namespace name ‘BlockableChannel<>’ could not be found (are you missing a using directive or an assembly reference?)
Packages\com.arongranberg.astar\Core\Pathfinding\PathProcessor.cs(21,12): error CS0246: The type or namespace name ‘BlockableChannel<>’ could not be found (are you missing a using directive or an assembly reference?)
Packages\com.arongranberg.astar\Core\Pathfinding\PathProcessor.cs(40,3): error CS0246: The type or namespace name ‘BlockableChannel<>’ could not be found (are you missing a using directive or an assembly reference?)
Packages\com.arongranberg.astar\Core\Misc\NavmeshPrefab.cs(352,10): error CS0246: The type or namespace name ‘Promise<>’ could not be found (are you missing a using directive or an assembly reference?)
Packages\com.arongranberg.astar\Core\Misc\NavmeshPrefab.cs(385,35): error CS0246: The type or namespace name ‘IProgress’ could not be found (are you missing a using directive or an assembly reference?)
Packages\com.arongranberg.astar\Core\Misc\NavmeshPrefab.cs(386,11): error CS0246: The type or namespace name ‘Promise<>’ could not be found (are you missing a using directive or an assembly reference?)
Packages\com.arongranberg.astar\Core\Misc\NavmeshPrefab.cs(400,11): error CS0246: The type or namespace name ‘Promise<>’ could not be found (are you missing a using directive or an assembly reference?)
Packages\com.arongranberg.astar\Core\Pathfinding\HierarchicalGraph.cs(148,58): error CS0246: The type or namespace name ‘RWLock’ could not be found (are you missing a using directive or an assembly reference?)
Packages\com.arongranberg.astar\Core\Pathfinding\HierarchicalGraph.cs(101,3): error CS0246: The type or namespace name ‘RWLock’ could not be found (are you missing a using directive or an assembly reference?)
Packages\com.arongranberg.astar\Core\RVO\RVOCoreSimulatorBurst.cs(1079,10): error CS0246: The type or namespace name ‘RWLock’ could not be found (are you missing a using directive or an assembly reference?)
Packages\com.arongranberg.astar\Core\RVO\RVOCoreSimulatorBurst.cs(1091,10): error CS0246: The type or namespace name ‘RWLock’ could not be found (are you missing a using directive or an assembly reference?)
Packages\com.arongranberg.astar\Core\RVO\RVOCoreSimulatorBurst.cs(856,3): error CS0246: The type or namespace name ‘RWLock’ could not be found (are you missing a using directive or an assembly reference?)
Packages\com.arongranberg.astar\Core\RVO\RVOObstacleCache.cs(214,292): error CS0246: The type or namespace name ‘SpinLock’ could not be found (are you missing a using directive or an assembly reference?)
Packages\com.arongranberg.astar\Graphs\RecastGraph.cs(867,17): error CS0246: The type or namespace name ‘Promise<>’ could not be found (are you missing a using directive or an assembly reference?)
Packages\com.arongranberg.astar\Graphs\RecastGraph.cs(867,57): error CS0246: The type or namespace name ‘Promise<>’ could not be found (are you missing a using directive or an assembly reference?)
Packages\com.arongranberg.astar\Graphs\RecastGraph.cs(867,95): error CS0246: The type or namespace name ‘Promise<>’ could not be found (are you missing a using directive or an assembly reference?)
Packages\com.arongranberg.astar\Graphs\RecastGraph.cs(1033,4): error CS0246: The type or namespace name ‘IProgress’ could not be found (are you missing a using directive or an assembly reference?)
Packages\com.arongranberg.astar\Graphs\Navmesh\TileHandler.cs(14,20): error CS0234: The type or namespace name ‘Sync’ does not exist in the namespace ‘Pathfinding’ (are you missing an assembly reference?)
Packages\com.arongranberg.astar\Graphs\Navmesh\Jobs\JobBuildNodes.cs(46,70): error CS0246: The type or namespace name ‘Promise<>’ could not be found (are you missing a using directive or an assembly reference?)
Packages\com.arongranberg.astar\Graphs\Navmesh\Jobs\JobBuildNodes.cs(46,127): error CS0246: The type or namespace name ‘Promise<>’ could not be found (are you missing a using directive or an assembly reference?)
Packages\com.arongranberg.astar\Graphs\Navmesh\Jobs\JobBuildNodes.cs(46,10): error CS0246: The type or namespace name ‘Promise<>’ could not be found (are you missing a using directive or an assembly reference?)
Packages\com.arongranberg.astar\Graphs\Navmesh\Jobs\JobBuildNodes.cs(27,39): error CS0246: The type or namespace name ‘IProgress’ could not be found (are you missing a using directive or an assembly reference?)
Packages\com.arongranberg.astar\Graphs\Navmesh\Jobs\JobBuildTileMeshFromVertices.cs(42,17): error CS0246: The type or namespace name ‘Promise<>’ could not be found (are you missing a using directive or an assembly reference?)
Packages\com.arongranberg.astar\Graphs\Navmesh\TileBuilder.cs(237,10): error CS0246: The type or namespace name ‘Promise<>’ could not be found (are you missing a using directive or an assembly reference?)
Packages\com.arongranberg.astar\Graphs\Navmesh\TileBuilder.cs(42,36): error CS0246: The type or namespace name ‘IProgress’ could not be found (are you missing a using directive or an assembly reference?)
Packages\com.arongranberg.astar\Graphs\Navmesh\TileHandler.cs(110,10): error CS0246: The type or namespace name ‘Promise<>’ could not be found (are you missing a using directive or an assembly reference?)
Packages\com.arongranberg.astar\Graphs\Navmesh\TileHandler.cs(177,46): error CS0246: The type or namespace name ‘Promise<>’ could not be found (are you missing a using directive or an assembly reference?)
Packages\com.arongranberg.astar\Graphs\Navmesh\TileHandler.cs(177,10): error CS0246: The type or namespace name ‘Promise<>’ could not be found (are you missing a using directive or an assembly reference?)
Packages\com.arongranberg.astar\Graphs\Navmesh\TileHandler.cs(42,36): error CS0305: Using the generic type ‘IProgress’ requires 1 type arguments
Packages\com.arongranberg.astar\Core\AstarPath.cs(2391,9): error CS0246: The type or namespace name ‘RWLock’ could not be found (are you missing a using directive or an assembly reference?)
Packages\com.arongranberg.astar\Core\AstarPath.cs(2410,9): error CS0246: The type or namespace name ‘RWLock’ could not be found (are you missing a using directive or an assembly reference?)
Packages\com.arongranberg.astar\Core\AstarPath.cs(2429,9): error CS0246: The type or namespace name ‘RWLock’ could not be found (are you missing a using directive or an assembly reference?)
Packages\com.arongranberg.astar\Core\AstarPath.cs(2440,65): error CS0246: The type or namespace name ‘RWLock’ could not be found (are you missing a using directive or an assembly reference?)
Packages\com.arongranberg.astar\Core\AstarPath.cs(565,2): error CS0246: The type or namespace name ‘RWLock’ could not be found (are you missing a using directive or an assembly reference?)