Unable to add animation rigging package gives error,i am unable to install animation rigging package

[Package Manager Window] Cannot perform upm operation: Unable to add package [com.unity.animation.rigging@1.0.3]: One or more dependencies could not be added to the local file system: com.unity.burst: EBUSY: resource busy or locked, open 'E:\my project\Prototype1\Library\PackageCache\.tmp14532lFfhjh5mJ7vF\copy\Runtime\Intrinsics\x86\Sse2.cs' com.unity.mathematics: EBUSY: resource busy or locked, open 'E:\my project\Prototype1\Library\PackageCache\.tmp14532b2IwjDVJlD6S\copy\Unity.Mathematics\math.cs'