Improved question quality

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edited Aug 12, 2023 at 19:19

1.7k
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Xcode - How to fix 'NSUnknownKeyException', reasonReason: …"… this class is not key value coding-compliant for the key X" error?

I'm trying to link a UILabel with an IBOutlet created in my class.

My application is crashing with the following error.error"

*** 
Terminating app due to uncaught exception
'NSUnknownKeyException', reason: 
'[&lt;UIViewController 0x6e36ae0> setValue:forUndefinedKey:]: 
this class is not key value coding-compliant for the key XXX.'

What does this mean?

& How can I fix it?

*** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<UIViewController 0x6e36ae0> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key XXX.'

Xcode - How to fix 'NSUnknownKeyException', reason: … this class is not key value coding-compliant for the key X" error?

I'm trying to link a UILabel with an IBOutlet created in my class.

My application is crashing with the following error.

What does this mean?

How can I fix it?

*** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<UIViewController 0x6e36ae0> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key XXX.'

Xcode - How to fix 'NSUnknownKeyException', Reason: "… this class is not key value coding-compliant for the key X" error?

I'm trying to link a UILabel with an IBOutlet created in my class.

My application is crashing with the following error"

*** 
Terminating app due to uncaught exception
'NSUnknownKeyException', reason: 
'[&lt;UIViewController 0x6e36ae0> setValue:forUndefinedKey:]: 
this class is not key value coding-compliant for the key XXX.'

What does this mean & How can I fix it?

removing "thanks"

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edited Oct 13, 2019 at 3:06

Cœur

38.2k
26
201
274

I'm trying to link a UILabel with an IBOutlet created in my class.

My application is crashing with the following error.

What does this mean?

How can I fix it?

*** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<UIViewController 0x6e36ae0> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key XXX.'

Thanks.

I'm trying to link a UILabel with an IBOutlet created in my class.

My application is crashing with the following error.

What does this mean?

How can I fix it?

*** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<UIViewController 0x6e36ae0> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key XXX.'

Thanks.

I'm trying to link a UILabel with an IBOutlet created in my class.

My application is crashing with the following error.

What does this mean?

How can I fix it?

*** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<UIViewController 0x6e36ae0> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key XXX.'

Modified title and content

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edited Jul 16, 2019 at 4:55

Jerry Chong

8.8k
4
51
41

What does this mean? "'NSUnknownKeyException' Xcode - How to fix 'NSUnknownKeyException', reason: … this class is not key value coding-compliant for the key X" error?

I'm trying to link a UILabel with an IBOutlet created in my class.

My application is crashing with the following error.

What does this mean?

How can I fix it?

*** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<UIViewController 0x6e36ae0> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key XXX.'

Thanks.

What does this mean? "'NSUnknownKeyException', reason: … this class is not key value coding-compliant for the key X"

I'm trying to link a UILabel with an IBOutlet created in my class.

My application is crashing with the following error. What does this mean? How can I fix it?

*** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<UIViewController 0x6e36ae0> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key XXX.'

Xcode - How to fix 'NSUnknownKeyException', reason: … this class is not key value coding-compliant for the key X" error?

I'm trying to link a UILabel with an IBOutlet created in my class.

My application is crashing with the following error.

What does this mean?

How can I fix it?

*** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<UIViewController 0x6e36ae0> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key XXX.'

Thanks.