Hi! same issue for me when trying to fit pre-trained EfficientNetB7 InvalidArgumentError: Cannot assign a device for operation sequential/efficientnetb7/stem_conv/Conv2D/ReadVariableOp: Could not satisfy explicit device specification '' because the node {{colocation_node sequential/efficientnetb7/stem_conv/Conv2D/ReadVariableOp}} was colocated with a group of nodes that required incompatible device '/job:localhost/replica:0/task:0/device:GPU:0'. All available devices [/job:localhost/replica:0/task:0/device:CPU:0, /job:localhost/replica:0/task:0/device:GPU:0]. Colocation Debug Info: Colocation group had the following types and supported devices: Root Member(assigned_device_name_index_=2 requested_device_name_='/job:localhost/replica:0/task:0/device:GPU:0' assigned_device_name_='/job:localhost/replica:0/task:0/device:GPU:0' resource_device_name_='/job:localhost/replica:0/task:0/device:GPU:0' supported_device_types_=[CPU] possible_devices_=[] ResourceApplyAdaMax: CPU ReadVariableOp: GPU CPU _Arg: GPU CPU