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@@ -295,7 +295,16 @@ class Installer
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$installFromLock = false;
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if (!$this->update && $this->locker->isLocked()) {
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$installFromLock = true;
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- $lockedRepository = $this->locker->getLockedRepository($withDevReqs);
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+ try {
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+ $lockedRepository = $this->locker->getLockedRepository($withDevReqs);
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+ } catch (\RuntimeException $e) {
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+ // if there are dev requires, then we really can not install
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+ if ($this->package->getDevRequires()) {
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+ throw $e;
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+ }
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+ // no require-dev in composer.json and the lock file was created with no dev info, so skip them
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+ $lockedRepository = $this->locker->getLockedRepository();
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+ }
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}
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$this->whitelistUpdateDependencies(
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