npm start gather is failing

[shubhamnarlawar77]

I am using rv8-bench for testing llvm riscv-gnu toolchain but below command (mentioned in README) is failing -

~/w/t/r/b/r/rv8-bench> npm start gather

rv8-bench@0.0.1 start /home/foo/workspace/toolchain/riscv/benchmarks/rv8/rv8-bench
node rv8-bench.js "gather"

fs.js:114
throw err;
^

Error: ENOENT: no such file or directory, open './stats/rv-hist-riscv32.json'
at Object.openSync (fs.js:443:3)
at Object.readFileSync (fs.js:343:35)
at /home/foo/workspace/toolchain/riscv/benchmarks/rv8/rv8-bench/rv8-bench.js:423:23
at Array.forEach ()
at benchmark_gather_all
(/home/foo/workspace/toolchain/riscv/benchmarks/rv8/rv8-bench/rv8-bench.js:421:11)
at Object.
(/home/foo/workspace/toolchain/riscv/benchmarks/rv8/rv8-bench/rv8-bench.js:696:3)
at Module._compile (internal/modules/cjs/loader.js:778:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:789:10)
at Module.load (internal/modules/cjs/loader.js:653:32)
at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! rv8-bench@0.0.1 start: node rv8-bench.js "gather"
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the rv8-bench@0.0.1 start script.
npm ERR! This is probably not a problem with npm. There is likely
additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR! /home/foo/.npm/_logs/2020-02-10T07_40_28_227Z-debug.log