我在用library时候出现了错误，错误提示
错误: package or namespace load failed for ‘rlang’ in dyn.load(file, DLLpath = DLLpath, ...):
无法载入共享目标对象‘/Library/Frameworks/R.framework/Versions/3.6/Resources/library/rlang/libs/rlang.so’：:
  dlopen(/Library/Frameworks/R.framework/Versions/3.6/Resources/library/rlang/libs/rlang.so, 6): Library not loaded: /Library/Frameworks/R.framework/Versions/3.5/Resources/lib/libR.dylib
  Referenced from: /Library/Frameworks/R.framework/Versions/3.6/Resources/library/rlang/libs/rlang.so
  Reason: image not found


但是我在install.packages时没有问题，请问各位这是什么原因。