MTOUCHTASK: Error MT5206: Failed to create the a fat library. Please review the build log. (MT5206)

Hi Team,

I have updated to Xamarin.iOS 8.6.0 and and installed Xcode 6.1.1. After that I am unable to build the application on the device. I am getting MTOUCHTASK: Error MT5206: Failed to create the a fat library. Please review the build log. (MT5206) error every time.
If you have any resolution steps please let me know.

But it's working fine in simulator.

Posts

  • RolfBjarneKvingeRolfBjarneKvinge USXamarin Team Xamurai

    Have you reviewed the build log?

    Please attach it.

  • I have checked Xamarin Studio->Help->Open Log Directory. But I canot see any build logs there. Can you please tell me where exactly I can see those logs?

  • KMullinsKMullins USXamarin Team Xamurai

    Hi @SatyaPrakashParida,

    If you view the Errors pad, the last option is to view the Build Output. See the attached image.

  • Hi Pls find attached log for your reference.

  • TomWaeltiTomWaelti CHMember

    @FreFre Thanks, your solution worked for me. After heavy updating of my environment, got the same error. Launched XCode, accepted the agreement, installer did some final lifting - Problem solved.

  • EndeavourSupportEndeavourSupport USUniversity

    Thanks @Satya I did work!

  • mac10688mac10688 USMember ✭✭

    @FreFre Thank you sir

  • SamCSamC USMember

    Anyway to make this a "sticky"? I suspect many more users are going to run into this same issue ... ;-}

  • RobertGenzelRobertGenzel NLMember ✭✭

    @FreFre Thanks. This also worked for me

  • stechmannstechmann USMember

    Thanks FreFre, you saved my life

  • Worked for me too..thanks.

  • Matt_HMatt_H USUniversity

    Thanks FreFre. Using Visual Studio, just had to start XCode on the Mac and accept the new license. Wonder why they can't display a more meaningful message?

  • Starting XCode and accepting the license agreement worked like charm. Many thanks!!

  • CybrosysCybrosys USMember ✭✭

    Thanks @FreFre! Starting Xcode and accepting the license agreement worked like a charm!

  • PAOLOSANTINONPAOLOSANTINON ITMember ✭✭

    YES! Thanks! Worked for me too!

  • Thanks you saved me :-)

  • Prajakta.ShindePrajakta.Shinde INUniversity ✭✭
    edited February 16

    I am having same issue. Failed to create the a fat library. Please review the build log.
    Build log is saying
    unable to find utility "lipo", not a developer tool or in PATH

    I had reopened the visual studio. Also run Hello XCode project in xcode on mac. still getting the same error. My project was running successfully yesterday but today morning getting this unexpected error. Please help.

  • DottorPagliacciusDottorPagliaccius ITMember ✭✭

    @Prajakta.Shinde said:
    I am having same issue. Failed to create the a fat library. Please review the build log.
    Build log is saying
    unable to find utility "lipo", not a developer tool or in PATH

    I had reopened the visual studio. Also run Hello XCode project in xcode on mac. still getting the same error. My project was running successfully yesterday but today morning getting this unexpected error. Please help.

    I have the same problem after upgrading xamarin to the latest stable :/

  • Rafael.SantosRafael.Santos PTUniversity ✭✭

    I have this problem too, any news ?

  • Norman.9105Norman.9105 USMember ✭✭

    @rdillin said:
    I fixed this issue today by opening Xcode, going to Preferences, going to Locations and then changing the command line tools back to 8.2.1 from 7.3.1. I'm guessing that the latest Xamarin update must have inadvertently changed them for some reason.

    It worked, thanks :)

  • Rafael.SantosRafael.Santos PTUniversity ✭✭

    Thanks, work for me too. :smiley:

  • PritamJPritamJ INMember

    @rdillin said:
    I fixed this issue today by opening Xcode, going to Preferences, going to Locations and then changing the command line tools back to 8.2.1 from 7.3.1. I'm guessing that the latest Xamarin update must have inadvertently changed them for some reason.

    Thanks man :smiley:

  • VolodymyrSavchenkoVolodymyrSavchenko UAMember ✭✭✭

    Changing command line tools helped me too;

  • lavkeshlavkesh INMember

    @SatyaPrakashParida said:
    I got the resolution. Xamarin was unable to select the default X Code version. Done it by changing "sudo xcode-select --switch /Applications/Xcode.app/Contents/Developer" command.

    Thanks its work for me.

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