You have to check the Send() method on RequestBuilder and find out where
the nil pointer is coming from.
There are no repro steps, nor the full stack trace, nor enough code for us
to understand what is really happening. Without that it is hard to conclude
why it is working on windows and not on ubuntu.
Your code doesn't include that library at all. And we don't know which
request is causing the crash.
-Agniva
On Tuesday, 18 September 2018 10:22:39 UTC+5:30, akshita babel wrote:
>
> But this is code is perfectly working in windows and when i am trying to
> run this on ubuntu it is giving the above error.
>
> On Tue, Sep 18, 2018 at 12:22 AM Justin Israel <justin...@gmail.com
> <javascript:>> wrote:
>
>> Your stack trace isn't long enough to see the usage of ipfs leading up to
>> the crash. And your example code doesn't show usage of that library.
>> Somewhere in there you must have a nil pointer to a RequestBuilder, on
>> which Send() is being called.
>>
>> On Tue, Sep 18, 2018, 3:42 AM akshita babel <akshitab...@gmail.com
>> <javascript:>> wrote:
>>
>>> When I am running a program which is for a web response I am getting a
>>> run time error as follows:
>>> http: panic serving 127.0.0.1:43802: runtime error: invalid memory
>>> address or nil pointer dereference
>>> goroutine 6 [running]:
>>> net/http.(*conn).serve.func1(0xc4200a4a00)
>>> /usr/lib/go-1.10/src/net/http/server.go:1726 +0x11b
>>> panic(0x9b5360, 0xd99230)
>>> /usr/lib/go-1.10/src/runtime/panic.go:502 +0x24a
>>> github.com/ipfs/go-ipfs-api.(*RequestBuilder).Send(0xc4201740a0,
>>> 0xb95c60, 0xc420022100, 0x0, 0x0, 0x0)
>>> The code of main file is as follows:
>>> func main() {
>>>
>>> router := httprouter.New()
>>> router.RedirectTrailingSlash = true
>>> c := cors.New(cors.Options{
>>> AllowedOrigins: []string{"*"},
>>> AllowedMethods: []string{"GET", "POST", "OPTIONS", "Authorization"},
>>> AllowedHeaders: []string{"*"},
>>> AllowCredentials: true,
>>> })
>>> router.GET("/create", StoreAndGetHash)
>>> router.GET("/read/:hashvalue", GetFile)
>>> router.GET("/appdata/:appID", ReadPeer)
>>> router.GET("/update", UpdateAndGetHash)
>>> router.GET("/createdir", GetDir)
>>> router.GET("/newkey", GetNewKey)
>>>
>>> log.Fatal(http.ListenAndServe(":3000", c.Handler(router)))
>>>
>>> }
>>>
>>> I am working on ubuntu
>>>
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