realm-swift: Core occasionally cannot be downloaded from China

After Realm 2.0.x you’d want to download realm-sync-cocoa-${REALM_SYNC_VERSION}.tar.xz from https://static.realm.io/downloads/sync/realm-sync-cocoa-${REALM_SYNC_VERSION}.tar.xz into ${TMPDIR}/sync_bin, where REALM_SYNC_VERSION can be found at https://github.com/realm/realm-cocoa/blob/master/dependencies.list#L3 (currently 1.0.0-BETA-3.3), and TMPDIR should hopefully already be set in your shell environment (use getconf DARWIN_USER_TEMP_DIR if it’s not).

Whenever the first download via CocoaPods has failed, the cache could be in a corrupt state. It might help in such cases to remove Realm from the CocoaPods cache, what can be achieved by running the following command:

rm -rf ~/Library/Caches/CocoaPods/Pods/**/Realm*

In addition, the integration in the project should be reset.

rm -rf /Pods

After that and ensuring that you’ve a working internet connection without restrictions, you can run the following:

pod install --verbose

@madawei2699 says the correct answer. I am also a developer in China.The solution is download realm-core-XXX.tar.bz2 and copy it into /tmp/ dir. So I suggested the maintainer to list the download url of each realm version.

I am in china and has the same problem when I use VPN. The core realm package is 63MB, that is so big and the VPN is hard to download it. By looking the build.sh of realm, it use getconf DARWIN_USER_TEMP_DIR1 to get the tmp direction and check the $TMPDIR, if it has the core-${REALM_CORE_VERSION}.tar.bz2. So I download the https://static.realm.io/downloads/core/realm-core-0.97.1.tar.bz2 by VPN and move it to $TMPDIR, then you can pod install.

1.cd `getconf DARWIN_USER_TEMP_DIR`
2.curl https://static.realm.io/downloads/core/realm-core-0.97.1.tar.bz2 -o realm-core-0.97.1.tar.bz2
(use VPN or use the website to help download on onedrive: http://ctrlq.org/save/)
3.cd ~/yourProjectDir/
4.pod install --verbose

Wish you fix this issue ASAP. Too many developer in China work without VPN.

I have the same problem even I use VPN and I solved it by downloading the dependence manually. In conclusion, you should download realm-core-XXX.tar.xz and realm-sync-cocoa-${REALM_SYNC_VERSION}.tar.xz, then put them into $TMPDIR/core/ and $TMPDIR/sync respectively.

I am not in China, and I am having lots of trouble installing realm. Here is the relevant bit from the “pod install verbose” output: -> Installing Realm (2.1.1)

Git download Git download $ /usr/local/bin/git clone https://github.com/realm/realm-cocoa.git /var/folders/w4/x6y651ks4zq9jx00gbth2wd5hlmvrr/T/d20161219-5097-12umqi0 –template= --single-branch --depth 1 --branch v2.1.1 Cloning into ‘/var/folders/w4/x6y651ks4zq9jx00gbth2wd5hlmvrr/T/d20161219-5097-12umqi0’… Note: checking out ‘a6f8e282bdf9d44de635e44b3f8967addbdfd2c9’.

 You are in 'detached HEAD' state. You can look around, make experimental
 changes and commit them, and you can discard any commits you make in this
 state without impacting any branches by performing another checkout.
 
 If you want to create a new branch to retain commits you create, you may
 do so (now or later) by using -b with the checkout command again. Example:
 
   git checkout -b <new-branch-name>
 
 Checking out files: 100% (1101/1101), done.
 $ /usr/local/bin/git -C /var/folders/w4/x6y651ks4zq9jx00gbth2wd5hlmvrr/T/d20161219-5097-12umqi0 submodule update --init --recursive
 Submodule 'Realm/ObjectStore' (https://github.com/realm/realm-object-store.git) registered for path 'Realm/ObjectStore'
 Cloning into '/private/var/folders/w4/x6y651ks4zq9jx00gbth2wd5hlmvrr/T/d20161219-5097-12umqi0/Realm/ObjectStore'...
 Submodule path 'Realm/ObjectStore': checked out 'bedfafd264ffe823a633cac582036ca31be69793'
 Submodule 'external/catch' (https://github.com/philsquared/Catch) registered for path 'Realm/ObjectStore/external/catch'
 Submodule 'external/pegtl' (https://github.com/ColinH/PEGTL) registered for path 'Realm/ObjectStore/external/pegtl'
 Cloning into '/private/var/folders/w4/x6y651ks4zq9jx00gbth2wd5hlmvrr/T/d20161219-5097-12umqi0/Realm/ObjectStore/external/catch'...
 Cloning into '/private/var/folders/w4/x6y651ks4zq9jx00gbth2wd5hlmvrr/T/d20161219-5097-12umqi0/Realm/ObjectStore/external/pegtl'...
 Submodule path 'Realm/ObjectStore/external/catch': checked out 'f294c9847272b1b92c5119a6f711e57113b5f231'
 Submodule path 'Realm/ObjectStore/external/pegtl': checked out '3c4128a7e7e1288eb746418ea60c41477358f26a'

Running prepare command $ /bin/bash -c set -e sh build.sh cocoapods-setup [!] /bin/bash -c set -e sh build.sh cocoapods-setup

wtf is going on??

This is ridiculous, if the developers from China needs to download the zipped file to local temp directory to let cocoapods to detect it, why not just download the dylib/static framework and add the dependency to project manually directly?

All the pods just pass except the realm-cocoa for command pod install, cocoapods brings the conveniences for developers to manage the 3rd-party packages and easy integration way. If the realm team won’t support it, the China developer should switch to manual way w/o any hesitation to use it.

BTW, that would be so nice to write a note/tips in README.md file in github and realm.io/docs, since this issue has blocked so many developers. @realm-admin

BTW, I’m a developer from China. Many thanks for your great job!

@Onetaway You can find the download url in https://github.com/realm/realm-cocoa/blob/master/build.sh#L289 which is the value of CORE_URL