. Troubleshooting</h2>
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<h3 id="unknown-error-1-ffffffffffffffff">11.1. Unknown error -1=ffffffffffffffff</h3>
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<p>If you&#8217;re using Delivery with automation server like Jenkins for iOS builds, you may see this error happens. To solve this, we made the plugin to be able to unlock the Apple Keychain which can solve this problem.<br></p>
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<p>To use this feature, define a system property or environment variabl