Codeignter 3 Image upload Code not working - forms

Question

I am trying to upload image using the code igniter. But it is giving me the following error
You did not select a file to upload
I have tried, many different sources, but still getting the error.
The PHP Code is below:
public function save_post()
{
$image_path = './uploads/';
$config['upload_path'] = $image_path;
$config['allowed_types'] = 'gif|jpg|png|jpeg';
// $config['max_size'] = 5000;
// $config['max_width'] = 1024;
// $config['max_height'] = 1024;
$this->load->library('upload', $config);
$this->upload->initialize($config);
if (!$this->upload->do_upload('postimage')) {
$error = array('error' => $this->upload->display_errors());
print_r($error);die;
$this->add_post($error);
} else {
$data = array('upload_data' => $this->upload->data());
$this->add_post($data);
}
die;
$data = array(
'page_title' => $this->input->post('ptitle'),
'page_slug' => $this->input->post('pslug'),
'page_body' => $this->input->post('pbody'),
'page_keyword' => $this->input->post('pkeywords'),
'page_description' => $this->input->post('pdesc'),
'page_image' => $this->input->post('postimage'),
);
$this->admin_model->save_post($data);
redirect(base_url() . 'admin/all_posts');
}
My View is below
<form method="post" action="<?php echo base_url(); ?>admin/save_post" enctype ="multipart/form-data ">
<div class="form-group">
<label for="postimage">Feature Image</label>
<input type="file" class="form-control" id="postimage" name="postimage" required>
</div>
<div> <?php if(isset($error)) echo $error; ?></div>
<div class="form-group">
<input type="submit" value="publish" name="submit" id="post-submit" class="btn btn-success waves-effect waves-light">
</div>
</form>

Answer 1

In views replace this code
<form method="post" action="<?php echo base_url(); ?>admin/save_post" enctype ="multipart/form-data ">
from this code
<?php echo form_open_multipart('admin/save_post');?>

Answer 2

The PHP Code is below:
enctype ="multipart/form-data " -> value inside attribute with extra spaces
replace this code
enctype ="multipart/form-data"