Redex: Error writing mapping file: No such file or directory

Created on 25 Oct 2016 · 28Comments · Source: facebook/redex

Hi there,

I used the tool according to the guide, everything went fine with the installing process. but when I use redex command to compress the apk, I encountered this error: " Error writing mapping file: No such file or directory."
here are my system info and error screenshot.

macosinfo

error2

Can anybody help?

Thanks a lot!

Source

222xiaohuan

Most helpful comment

{
    "redex": {
        "passes": [
            "ReBindRefsPass",
            "BridgePass",
            "SynthPass",
            "FinalInlinePass",
            "DelSuperPass",
            "SingleImplPass",
            "SimpleInlinePass",
            "StaticReloPass",
            "RemoveEmptyClassesPass",
            "ShortenSrcStringsPass"
        ]
    },
    "ShortenSrcStringsPass": {
        "filename_mappings": "filename_mappings.txt"
    }
}

write redex.conf file.

and

redex ~~ -c redex.conf

filename_mappings default value : /tmp/filename_mappings.txt

/tmp/filename_mappings.txt permission denied

asamaru7 on 16 Nov 2016

👍4

All 28 comments

following. Getting same error

samyakjain on 25 Oct 2016

@222xiaohuan did you find any solution to this?

samyakjain on 25 Oct 2016

@samyakjain No, I tried to google the error, but didn't find any clue. :(

222xiaohuan on 26 Oct 2016

the same with me.

eagertofly on 26 Oct 2016

+1 :(

Szmiglo on 26 Oct 2016

Can anybody help? any progress @samyakjain @eagertofly @Szmiglo ?

222xiaohuan on 27 Oct 2016

I guess this is jus one warning and you can still gent the output apk file. @222xiaohuan

eagertofly on 27 Oct 2016

The same with me, but I can still get a new apk file.
but I fails to install with Failure [INSTALL_PARSE_FAILED_NO_CERTIFICATES], look it at readme.md
@eagertofly @222xiaohuan

LeerGo on 27 Oct 2016

you need to sign the apk with your keystore @xoder-me

eagertofly on 27 Oct 2016

@eagertofly yes， i have readed the offical document... i just try it. but thx!

LeerGo on 27 Oct 2016

Yes. It is still generating output file so just ignoring this as a warning
and going ahead.

On Thu, Oct 27, 2016 at 7:34 AM, Jason Wang [email protected]
wrote:

I guess this is jus one warning and you can still gent the output apk
file. @222xiaohuan https://github.com/222xiaohuan

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samyakjain on 27 Oct 2016

Yes, I can get the package, but before doing the compress, the package size is 18.6M, after doing that, the size is 18.3, so I am not sure if the compress really works. and by the way how the package size changed of yours? @eagertofly @samyakjain @xoder-me

222xiaohuan on 28 Oct 2016

Not much of significant change in package size. That's why i am also in
doubt if redex is properly working or not. Difference of only .1 Mb (from
9.7 to 9.6)

On Fri, Oct 28, 2016 at 1:29 PM, Emily [email protected] wrote:

Yes, I can get the package, but before doing the compress, the package
size is 18.6M, after doing that, the size is 18.3, so I am not sure if the
compress really works. and by the way how the package size changed of
yours? @eagertofly https://github.com/eagertofly @samyakjain
https://github.com/samyakjain @xoder-me https://github.com/xoder-me

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samyakjain on 28 Oct 2016

Redex usually doesn't decrease the APK size much; it'll usually make the dexes (bytecode) noticeably smaller, but that compresses well anyways so it doesn't make a big difference in APK size. You can check the dex size using aapt.

On Oct 28, 2016, at 2:42 AM, Samyak <[email protected]notifications@github.com> wrote:

Not much of significant change in package size. That's why i am also in
doubt if redex is properly working or not. Difference of only .1 Mb (from
9.7 to 9.6)

On Fri, Oct 28, 2016 at 1:29 PM, Emily <[email protected]notifications@github.com> wrote:

Yes, I can get the package, but before doing the compress, the package
size is 18.6M, after doing that, the size is 18.3, so I am not sure if the
compress really works. and by the way how the package size changed of
yours? @eagertofly https://github.com/eagertofly @samyakjain
https://github.com/samyakjain @xoder-me https://github.com/xoder-me

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bertmaher on 28 Oct 2016

{
    "redex": {
        "passes": [
            "ReBindRefsPass",
            "BridgePass",
            "SynthPass",
            "FinalInlinePass",
            "DelSuperPass",
            "SingleImplPass",
            "SimpleInlinePass",
            "StaticReloPass",
            "RemoveEmptyClassesPass",
            "ShortenSrcStringsPass"
        ]
    },
    "ShortenSrcStringsPass": {
        "filename_mappings": "filename_mappings.txt"
    }
}

write redex.conf file.

and

redex ~~ -c redex.conf

filename_mappings default value : /tmp/filename_mappings.txt

/tmp/filename_mappings.txt permission denied

asamaru7 on 16 Nov 2016

👍4

I have the same problem.:(

mJackSparrow on 14 Dec 2016

I have the same problem.:(

And the command line not working:
ANDROID_SDK=/Users/yiwowang/Library/Android/sdk redex app-debug.apk -o output12345.apk -c config/default.config

yiwowang on 15 Dec 2016

@yiwowang
Did you create a "config / default.config" file?

asamaru7 on 15 Dec 2016

I have appended the code
"
"ShortenSrcStringsPass": {
"filename_mappings": "filename_mappings.txt"
}
"
in the 'default.config' file, then tried again with a signed apk, the output apk is generated successfully with the same error message on the terminal "Error writing mapping file: No such file or directory ", but I can't install the apk file.Only change in the apk size is .1 Mb

vipinemvigo on 27 Dec 2016

I write redex.conf.

{
    "redex": {
        "passes": [
            "ReBindRefsPass",
            "BridgePass",
            "SynthPass",
            "FinalInlinePass",
            "DelSuperPass",
            "SingleImplPass",
            "SimpleInlinePass",
            "StaticReloPass",
            "RemoveEmptyClassesPass",
            "ShortenSrcStringsPass"
        ]
    },
    "ShortenSrcStringsPass": {
        "filename_mappings": "filename_mappings.txt"
    }
}

and run redex

$ redex ~~~ -c redex.conf

asamaru7 on 28 Dec 2016

In 'redex ~~~ -c redex.conf' ' ~~~' means path of the config file ?

vipinemvigo on 28 Dec 2016

no. ~~~ is other arguments.

example

$ redex xx.apk -o r.apk -sign --keystore ~~ --proguard-map ~~ --proguard-config ~~  -c /path/redex.conf

asamaru7 on 28 Dec 2016

ok, thanks
I tried it(without proguard) but the same result again, I have attached a screenshot of the terminal.

untitled

vipinemvigo on 28 Dec 2016

Did you put the following in default.config?

{
    "redex": {
        "passes": [
            "ReBindRefsPass",
            "BridgePass",
            "SynthPass",
            "FinalInlinePass",
            "DelSuperPass",
            "SingleImplPass",
            "SimpleInlinePass",
            "StaticReloPass",
            "RemoveEmptyClassesPass",
            "ShortenSrcStringsPass"
        ]
    },
    "ShortenSrcStringsPass": {
        "filename_mappings": "filename_mappings.txt"
    }
}

And did you reinstall redex to the latest version?

opt/shorten-srcstrings/Shorten.cpp

...
  // generate mapping
  FILE* fd = fopen(map_path, "w");
  if (fd == nullptr) {
    perror("Error writing mapping file");
    return;
  }
...

If the error persists Try removing ShortenSrcStringsPass as it seems to be related to "Shorten".

{
    "redex": {
        "passes": [
            "ReBindRefsPass",
            "BridgePass",
            "SynthPass",
            "FinalInlinePass",
            "DelSuperPass",
            "SingleImplPass",
            "SimpleInlinePass",
            "StaticReloPass",
            "RemoveEmptyClassesPass"
        ]
    }
}

If not, I do not know. sorry.

asamaru7 on 28 Dec 2016

👍1

Great, *Thanks @asamaru7 for the solution, The third method is work for me, Now there is no error related to the mapping file.Apk is generated without any error message, but *unable to install the apk file .

vipinemvigo on 28 Dec 2016

Updated to latest, still getting the same warning. But I have also noticed that my after redux my apk's download size reduced by .9mb . So i am assuming redux is working fine.

samyakjain on 28 Jan 2017

This warning should be gone in master. The next release version will fix it for good

On Jan 28, 2017, at 9:50 AM, Samyak <[email protected]notifications@github.com> wrote:

Updated to latest, still getting the same warning. But I have also noticed that my after redux my apk's download size reduced by .9mb . So i am assuming redux is working fine.

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bertmaher on 28 Jan 2017

It sounds like this was fixed back in January. Closing. Please re-open or create a new issue if you see this error again.