diff --git a/README.md b/README.md
index 63150fd1..15fa2eb4 100644
--- a/README.md
+++ b/README.md
@@ -442,7 +442,7 @@ Note: Android only. Will overwrite destPath if it already exists.
 
 ### `copyAssetsFileIOS(imageUri: string, destPath: string, width: number, height: number, scale : number = 1.0, compression : number = 1.0, resizeMode : string = 'contain'  ): Promise<string>`
 
-iOS-only: copies a file from camera-roll, that is prefixed with "assets-library://asset/asset.JPG?..."
+iOS-only (not available on Mac Catalyst): copies a file from camera-roll, that is prefixed with "assets-library://asset/asset.JPG?..."
 to a specific destination. It will download the original from iCloud if necessary.
 
 If width and height is > 0, the image will be resized to a specific size and a specific compression rate.
@@ -461,7 +461,7 @@ The promise will on success return the final destination of the file, as it was
 
 ### copyAssetsVideoIOS(videoUri: string, destPath: string): Promise<string>
 
-iOS-only: copies a video from assets-library, that is prefixed with 'assets-library://asset/asset.MOV?...'
+iOS-only (not available on Mac Catalyst): copies a video from assets-library, that is prefixed with 'assets-library://asset/asset.MOV?...'
 to a specific destination.
 
 ### `unlink(filepath: string): Promise<void>`
diff --git a/RNFSManager.m b/RNFSManager.m
index db55dd21..8061a7a7 100755
--- a/RNFSManager.m
+++ b/RNFSManager.m
@@ -727,6 +727,8 @@ + (BOOL)requiresMainQueueSetup
 }
 
 
+// [PHAsset fetchAssetsWithALAssetURLs] is deprecated and not supported in Mac Catalyst
+#if !TARGET_OS_UIKITFORMAC
 /**
  * iOS Only: copy images from the assets-library (camera-roll) to a specific path, asuming
  * JPEG-Images.
@@ -815,7 +817,10 @@ + (BOOL)requiresMainQueueSetup
         }
     }];
 }
+#endif
 
+// [PHAsset fetchAssetsWithALAssetURLs] is deprecated and not supported in Mac Catalyst
+#if !TARGET_OS_UIKITFORMAC
 /**
  * iOS Only: copy videos from the assets-library (camera-roll) to a specific path as mp4-file.
  *
@@ -869,6 +874,7 @@ + (BOOL)requiresMainQueueSetup
 
   return resolve(destination);
 }
+#endif
 
 RCT_EXPORT_METHOD(touch:(NSString*)filepath
                   mtime:(NSDate *)mtime