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obelisk/FAQ.md
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1# Frequently Asked Questions
31. [How do I fix invalid entitlements? ](#how-do-i-fix-invalid-entitlements)
41. [`ob thunk update` or `ob deploy update` fails](#ob-thunk-update-or-ob-deploy-update-fails)
6### How do I fix invalid entitlements?
8You probably did not set `ios.bundleIdentifier` correctly in `default.nix`.
9When this happens you'll see an error something like this:
11```
122018-11-25 09:34:22.438 ios-deploy[58106:8521046] [ !! ] Error 0xe8008016: The executable was signed with invalid entitlements. AMDeviceSecureInstallApplication(0, device, url, options, install_callback, 0)
13```
15Fixing the value of `ios.bundleIdentifier` should fix the error.
17### `ob thunk update` or `ob deploy update` fails
18Whenever an `ob` command fails, try re-running it with `-v`.
20If you're using a private repo, and you get a failure in nix-prefetch-url, you may need to unpack and repack the thunk. Here's some example output that shows this issue:
22```
23Starting Obelisk </nix/store/j8wls8a89xr6s1a47lg6g83gnbdrfd0l-obelisk-command-0.1/bin/.ob-wrapped> args=["deploy","update","-v"] logging-level=Debug
24Creating process: 'nix-build' './.obelisk/impl' '-A' 'command' '--no-out-link'
25✔ Built on ./.obelisk/impl [command]
26Handing off to /nix/store/j8wls8a89xr6s1a47lg6g83gnbdrfd0l-obelisk-command-0.1/bin/ob
27Starting Obelisk </nix/store/j8wls8a89xr6s1a47lg6g83gnbdrfd0l-obelisk-command-0.1/bin/.ob-wrapped> args=["--no-handoff","deploy","update","-v"] logging-level=Debug
28Creating process: 'git' 'ls-remote' '--exit-code' '--symref' 'https://github.com/obsidiansystems/some-private-repo.git' 'refs/heads/master'
29git ls-remote maps: (fromList [],fromList [(GitRef_Branch "master","8546dfc8be9653f20bb26214e0991dbb957cb290")])
30Latest commit in branch master from remote repo https://github.com/obsidiansystems/some-private-repo.git is 8546dfc8be9653f20bb26214e0991dbb957cb290
31Creating process: 'nix-prefetch-url' '--unpack' '--type' 'sha256' 'https://github.com/obsidiansystems/some-private-repo/archive/8546dfc8be9653f20bb26214e0991dbb957cb290.tar.gz'
32error: unable to download 'https://github.com/obsidiansystems/some-private-repo/archive/8546dfc8be9653f20bb26214e0991dbb957cb290.tar.gz': HTTP error 404
33Process exited with code 1; 'nix-prefetch-url' '--unpack' '--type' 'sha256' 'https://github.com/obsidiansystems/some-private-repo/archive/8546dfc8be9653f20bb26214e0991dbb957cb290.tar.gz'
34nix-prefetch-url: Failed to determine sha256 hash of URL https://github.com/obsidiansystems/some-private-repo/archive/8546dfc8be9653f20bb26214e0991dbb957cb290.tar.gz
35✖ Updating thunk ./src to latest
36```
38And here's how you can fix it:
40```
41ob thunk unpack $SOME_THUNK
42ob thunk pack $SOME_THUNK
43```
44Substitute the directory of your thunk for `$SOME_THUNK`. In the case of `ob deploy update`, `$SOME_THUNK` will be `src` in the deployment directory.
46(Based on issue #351).