E: the specified CMSIS Pack Root directory does NOT exist! Please take a moment to review if the value is correct or create a new one via cpackget init command
想导入STM32F103的器件支持包,去官网下载好了pack包,不管是双击打开pack包,还是在keil MDK-Arm里的pack installer去import这个pack包都报出错误,请问有人知道是什么问题吗