ThrowNewInvalidOperationException($"Found multiple versions of package '{existingDependency.PackageName}': {existingDependency.PackageVersion} and {packageVersion}")
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<!-- Copyright (c) Microsoft. All Rights Reserved. Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information. -->
<!-- Copyright (c) Microsoft. All Rights Reserved. Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information. -->
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Workaround to make Roslyn work on Dev15. Deploys System.ValueTuple 4.0.3.0 and binding redirects to override System.ValueTuple 4.0.1.0 in PrivateAssemblies.