安装bignum时发生错误，求助，谢谢

hisoo

pi@raspberrypi:~ $ sudo npm install --unsafe-perm bignum

> [email protected] install /home/pi/node_modules/bignum

> node-pre-gyp install --fallback-to-build

node-pre-gyp ERR! Tried to download(403): https://rvagg-node.s3-us-west-2. ... 51-linux-arm.tar.gz

node-pre-gyp ERR! Pre-built binaries not found for [email protected] and [email protected] (node-v51 ABI) (falling back to source compile with node-gyp)

make: Entering directory '/home/pi/node_modules/bignum/build'

  CXX(target) Release/obj.target/bignum/bignum.o

../bignum.cc: In static member function ‘static Nan::NAN_METHOD_RETURN_TYPE BigNum::New(Nan::NAN_METHOD_ARGS_TYPE)’: