building ffmpeg library for android on linux -

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i trying install ffmpeg libaray on linux android application. link following https://www.assetbank.co.uk/support/documentation/install/ffmpeg/ have completed steps except last 1 i.e " run "/sbin/ldconfig" root. "

it showing following error in linux terminal: anirudh@anirudh-system-product-name:/sbin$ ldconfig /sbin/ldconfig.real: can't create temporary cache file /etc/ld.so.cache~: permission denied

please comment if can suggest regarding issue.


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