Composer.json does not match the expected JSON schema: name does not match the regex pattern

[Havbaba]

When running php composer.phar update it's giving me the error:

[Composer\Json\JsonValidationException]
"./composer.json" does not match the expected JSON schema:
name : Does not match the regex pattern ^[a-z0-9]([_.-]?[a-z0-9]+)*/[a-z0-9](([_.]?|-{0,2})[a-z0-9]+)*$

[igor-magno]

I'm getting the same error when running composer install