So,
I tried to follow this tutorial for setting up a new GII generator template:
Custom Gii Template
After trying to setup my own model template I get this error:
6935

$config['modules']['gii'] = [
'class'=>'yii\gii\Module',
'generators' => [
'crud' => [
'class' => 'yii\gii\generators\crud\Generator',
'templates' => [
'activeString' => '@app/common/custom/giiTemplates/crud/activeString',
]
],
'model' => [
'class' => 'yii\gii\generators\model\Generator',
'templates' => [
'activeString' => '@app/common/custom/giiTemplates/model/activeString',
]
]
],
];
ajberri
(Alex)
2
Obvious question, but does the class actually exist in the directory the generator is expecting? 
Ha! good question, actually in this case the files are there.
I think this is a classic windows vs linux file path issue.
I put the full path in and everything works fine. But if I try and use the @app alias and forward slash the rest, it craps out.
I think it’s as I am widows I should be using back slashes. 
jacmoe
(Jacob Moena)
4
This has nothing to do with paths - and yes: you need to use forward slash on Windows too.
Your generator cannot find the template file called ‘model’ - check that it is where the generator expects it to be.
Maybe you forgot to copy the file over?
Go into your model generator folder and look.