install error

[zmqwer]

1. CUDA_cublas_LIBRARY not found error when compiling ,my cuda version 10.2
2. /usr/include/c++/7/bits/basic_string.tcc(1067): error: expression must have pointer type
   detected during: instantiation of "std::basic_string<_CharT, _Traits, _Alloc>::_Rep *std::basic_string<_CharT, _Traits, _Alloc>::_Rep::_S_create(std::basic_string<_CharT, _Traits, _Alloc>::size_type, std::basic_string<_CharT, _Traits, _Alloc>::size_type, const _Alloc &) [with _CharT=char16_t, _Traits=std::char_traits<char16_t>, _Alloc=std::allocator<char16_t>]"

To Fix the above two problems, I have to use root to modify some settings of the linux system. Is there any better solution?