Golang读取输入文件时出现打开失败错误的问题求助

大家好，我刚接触Golang，最近在做一个编码挑战，下载了对应的代码片段后仔细读了附带的README.md文件。按照说明运行run.bat后，成功生成了geektrust.exe可执行文件，但当我尝试用go run main.go ./geektrust sample_input/input1.txt命令直接运行源码时，程序总是输出“Error opening the input file”的错误提示。

我已经确认sample_input/input1.txt是标准的文本文件，但就是无法正常打开读取，想请教下各位我哪里操作错了？

以下是我的相关文件内容：

main.go源码 #

package main

import (
    "bufio"
    "fmt"
    "os"
)

func main() {
    cliArgs := os.Args[1:]
    if len(cliArgs) == 0 {
        fmt.Println("Please provide the input file path")
        return
    }

    filePath := cliArgs[0]
    file, err := os.Open(filePath)
    if err != nil {
        fmt.Println("Error opening the input file")
        return
    }
    defer file.Close()

    scanner := bufio.NewScanner(file)
    for scanner.Scan() {
        /*
        args := scanner.Text()
        argList := strings.Fields(args)
        Add your code here to process the input commands
        */
    }
}

README.md中的运行说明 #

Pre-requisites #

• Go 1.15.7/1.16.8/1.17
• go tool

How to run the code #

We have provided scripts to execute the code.
Use run.sh if you are Linux/Unix/macOS Operating systems and run.bat if you are on Windows. Both the files run the commands silently and prints only output from the input file sample_input/input1.txt. You are supposed to add the input commands in the file from the appropriate problem statement.

Internally both the scripts run the following commands

• go build . - This will build an executable by the name geektrust in the directory $GOPATH/src/geektrust besides the main.go file .
• Execute the file from the directory $GOPATH/src/geektrust using the command
  ./geektrust sample_input/input1.txt

We expect your program to take the location to the text file as parameter. Input needs to be read from a text file, and output should be printed to the console. The text file will contain only commands in the format prescribed by the respective problem.

备注：内容来源于stack exchange，提问作者SHUBHAM