Why am I getting a "Cannot return null for non-nullable field" error when doing a mutation? [duplicate] Why am I getting a "Cannot return null for non-nullable field" error when doing a mutation? [duplicate] express express
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Why am I getting a "Cannot return null for non-nullable field" error when doing a mutation? [duplicate]
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node.js
express
graphql
apollo-server
lien
express
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express
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