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Google VR builds fail on iOS -lGTMSessionFetcher

Discussion in 'AR/VR (XR) Discussion' started by juliang, May 3, 2017.

  1. juliang

    juliang

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    Nov 25, 2008
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    Builds of GVR apps with the latest SDK now fail in Xcode with the error
    Library not found for -lGTMSessionFetcher

    Where did this come from? There's nothing on the Google developer website and I couldn't find anything relevant in StackOverflow.
     
    juliang, May 3, 2017
    #1

  2. joejo

    joejo

    Unity Technologies

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    May 26, 2016
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    Google Ships the GVR NDK using the Cocoapads (http://cocoapods.org) library management system. The way Cocoapods works is that it takes your project and the dependencies outlined and generates a workspace that contains your project as well as the Cocoapods Pods project that contains the dependencies. When you make a iOS project for Cardboead, you need to open up this workspace and not the project. We do this for you automatically if you select Build & Run but if not then you need to open the workspace created in your project folder.

    The documentation did not outline this requirement and that should be fixed for 2017.1 and is in process for the current 5.6 documentation set.
     
    joejo, May 4, 2017
    #2
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  3. juliang

    juliang

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    That explains it, thanks. I can easily deal with Cocoapods, I use them in just about all my iOS apps.
    However, now I get a different error:
    Run custom shell script ‘[CP] Check Pods Manifest.lock’
    /Users/jeg/Library/Developer/Xcode/DerivedData/Unity-iPhone-dyyrriphkznckugpwrrtrynjldpv/Build/Intermediates/Unity-iPhone.build/Debug-iphoneos/Unity-iPhone.build/Script-35654F9BB99A1B25FF5284E2.sh: line 2: null: command not found
    Command /bin/sh failed with exit code 127
    ​
    I don't see that script in the package. Do I need a 'pod install' or something in the Xcode project?
     
    juliang, May 4, 2017
    #3

  4. joejo

    joejo

    Unity Technologies

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    You shouldn't need to have done anything. No one else has reported this so I am wondering what your target is and how you are executing the build?
     
    joejo, May 4, 2017
    #4

  5. juliang

    juliang

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    Nov 25, 2008
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    The question about build target prompted me to go into the project directory and do a 'pod update'. It reported that it was updating GVRSDK from 1.20 to 1.40. After that the build worked and was installed on my iphone, so I'd say that updating took care of it.

    I was using a download from the Google Cardboard developer site which I got just on Monday, so that must need updating to the current version.

    Now to learn how to do Cocoapods in Unity, other than manually...
     
    juliang, May 5, 2017
    #5
    DBarlok likes this.

  6. joejo

    joejo

    Unity Technologies

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    Thanks, I've reported that to Google.
     
    joejo, May 5, 2017
    #6
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  7. ccklokwerks

    ccklokwerks

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    Juliang, just want to say thank you for reporting how you were able to fix this through a pod update. Although I had some trepidation, I installed cocoapods and updating - from 1.60 to 1.80 -fixed my problem (which was the identical "command not found" issue you mention in post #3).

    (This was with Unity 5.6.3 and XCode 8.3.3. Hope I get the chance to update to 2017.1 or even 2017.2 soon.)
     
    ccklokwerks, Sep 29, 2017
    #7

  8. pamelacook

    pamelacook

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    Dec 13, 2017
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    I'm running Unity 2017.4.0f1. I got this error when I opened the project file by mistake. No error when I opened the workspace file.
     
    pamelacook, Jul 4, 2018
    #8

  9. joejo

    joejo

    Unity Technologies

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    May 26, 2016
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    joejo, Jul 16, 2018
    #9