[F/OS] PedrozaThumbnail Extension

Hi, I used this open source and built it with Rush, but how am I going to fix this?

Microsoft Windows [Version 10.0.19042.964]
(c) Microsoft Corporation. All rights reserved.

D:\Rush\y-tthumb>rush build -r
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• Build initialized

┌ Validating project files
│
│  OKAY Metadata file (rush.yml)
│
│  OKAY AndroidManifest.xml file
└ Done
┌ Compiling Java files
│
│  ERR src\com\sgview\ytthumb\YTthumb.java:192: error: cannot find symbol
│         @SimpleProperty(category = PropertyCategory.BEHAVIOR, description = "Returns number 1 to be used in the kind parameter")
│                                                    ^
│         symbol:   method category()
│         location: @interface SimpleProperty
│
│  ERR src\com\sgview\ytthumb\YTthumb.java:200: error: cannot find symbol
│               @SimpleProperty(category = PropertyCategory.BEHAVIOR, description = "Returns number 3 to be used in the kind parameter")
│                                                          ^
│         symbol:   method category()
│         location: @interface SimpleProperty
│
│  Total errors: 2
└ Failed

• Build failed

D:\Rush\y-tthumb>