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javaiosgoogle-app-engine

Failing to generate all the header and implementation classed for iOS

I'm on step 5 of the Using Endpoints in an iOS Client tutorial and when I try to generate all the header and implementation classes for iOS by utilizing the tictactoe-v1-rpc.discovery file it's currently failing with:

"ERROR: Failed to fetch the api description" (see below)

In the terminal I enter:

ConfusedDeer-mbp:/ ConfusedDeer$ /Users/ConfusedDeer/Library/Developer/Xcode/DerivedData/ServiceGenerator-eoemzskhioxhvgbxjfcwxowhamno/Build/Products/Debug/ServiceGenerator \ ~/Desktop/tictactoe-v1-rpc.discovery --outputDir /Users/ConfusedDeer/Desktop/API

Generation Settings:

Output Directory:

~/Desktop/API

Discovery RPC URL: https://www.googleapis.com/rpc?prettyPrint=false

Flags:

  • Use service name directory: NO

  • Remove unknown files: NO

  • Add 'Generated' directory: NO

  • Allow rootURL overrides: YES

Loading API File(s):

  • Fetching / ~/Desktop/tictactoe-v1-rpc.discovery

ERROR: Failed to fetch the api description / ~/Desktop/tictactoe-v1-rpc.discovery, error: Error Domain=NSURLErrorDomain Code=-1100 "The requested URL was not found on this server." UserInfo=0x7fec72c2cf30 {NSUnderlyingError=0x7fec72c2c680 "The requested URL was not found on this server.", NSErrorFailingURLStringKey=file:///%20~/Desktop/tictactoe-v1-rpc.discovery, NSErrorFailingURLKey=file:///%20~/Desktop/tictactoe-v1-rpc.discovery, NSLocalizedDescription=The requested URL was not found on this server.}

Generating:

Writing:

  • No changes from what is already on disk.

ConfusedDeer-mbp:/ ConfusedDeer$

Solution

  • After further troubleshooting I was finally able to generate my iOS client libraries!

    The command I used to accomplish this was:

    /Users/ConfusedDeer/Library/Developer/Xcode/DerivedData/ServiceGenerator-eoemzskhioxhvgbxjfcwxowhamno/Build/Products/Debug/ServiceGenerator /Users/ConfusedDeer/Desktop/tictactoe-v1-rpc.discovery --outputDir /Users/ConfusedDeer/Desktop/API

    There were two issues with the original command I was using. I was finally able to locate the issue by placing:

    file:///%20~/Desktop/tictactoe-v1-rpc.discovery

    In the browser URL and noticed there was a %20, which is a space. Once I removed all the spaces and the tilde (~) and placed the following in the URL

    file:///Users/ConfusedDeer/Desktop/tictactoe-v1-rpc.discovery

    once the rpc.discovery file appeared in the browser I realized that the google commmand line tool would be able to locate it. Another issue was the output directory had to be relative (duh!) from where I executed the command in the terminal..

    After I ran:

    /Users/ConfusedDeer/Library/Developer/Xcode/DerivedData/ServiceGenerator-eoemzskhioxhvgbxjfcwxowhamno/Build/Products/Debug/ServiceGenerator /Users/ConfusedDeer/Desktop/tictactoe-v1-rpc.discovery --outputDir /Users/ConfusedDeer/Desktop/API

    in generated the following:

    =============================================================================== Generation Settings:

    Output Directory: ~/Desktop/API

    Discovery RPC URL: https://www.googleapis.com/rpc?prettyPrint=false

    Flags:

    • Use service name directory: NO
      • Remove unknown files: NO
      • Add 'Generated' directory: NO
      • Allow rootURL overrides: YES Loading API File(s):
      • Fetching ~/Desktop/tictactoe-v1-rpc.discovery +-- Loaded: tictactoe:v1 Generating:
      • tictactoe(v1) Writing:
      • GTLQueryTictactoe.h (1744 bytes) - NEW
      • GTLQueryTictactoe.m (1907 bytes) - NEW
      • GTLServiceTictactoe.h (1507 bytes) - NEW
      • GTLServiceTictactoe.m (1472 bytes) - NEW
      • GTLTictactoe.h (583 bytes) - NEW
      • GTLTictactoe_Sources.m (702 bytes) - NEW
      • GTLTictactoeBoard.h (725 bytes) - NEW
      • GTLTictactoeBoard.m (638 bytes) - NEW
      • GTLTictactoeConstants.h (663 bytes) - NEW
      • GTLTictactoeConstants.m (529 bytes) - NEW
      • GTLTictactoeScore.h (974 bytes) - NEW
      • GTLTictactoeScore.m (879 bytes) - NEW
      • GTLTictactoeScoreCollection.h (976 bytes) - NEW
      • GTLTictactoeScoreCollection.m (918 bytes) - NEW
      • GTLTictactoeUser.h (878 bytes) - NEW
      • GTLTictactoeUser.m (682 bytes) - NE

    SUCCESS!