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After trying various solutions like "Asigning color profile (sRGB IEC61966-2.1) to icons" and "CocoaPods solution" stated above, or "Changing App Icon Source name to different asset name in proect setting", I found one very basic solution as follow:

1. Clear your project.
2. Clear derived data at (~/Library/Developer/Xcode/DerivedData/)
3. Go to "Project -> Build Phase"
4. Find "Copy Bundle Resources and drag it as the last item of the list".
5. Uninstall application if it is already there, and run project.

Find screenshot for better understanding.

Before

After

Note: You can check, what is creating problem for app-icon in your project by simply changing position of "Copy Bundle Resources" to upward direction.

After trying various solutions like "Asigning color profile (sRGB IEC61966-2.1) to icons" and "CocoaPods solution" stated above, or "Changing App Icon Source name to different asset name in proect setting", I found one very basic solution as follow:

1. Clear your project
2. Clear derived data at (~/Library/Developer/Xcode/DerivedData/)
3. Go to "Project -> Build Phase"
4. Find "Copy Bundle Resources" and drag it as the last item of the list
5. Uninstall application if it is already there, and run project

Find screenshot for better understanding.

Before

After

Note: You can check, what is creating problem for app-icon in your project by simply changing position of "Copy Bundle Resources" to upward direction.

After trying various solutions like "Asigning color profile (sRGB IEC61966-2.1) to icons" and "CocoaPods solution" stated above, or "Changing App Icon Source name to different asset name in proect setting", I found one very basic solution as follow:

1. Clear your project.
2. Clear derived data at (~/Library/Developer/Xcode/DerivedData/)
3. Go to "Project -> Build Phase"
4. Find "Copy Bundle Resources and drag it as the last item of the list".
5. Uninstall application if it is already there, and run project.

Find screenshot for better understanding.

Before (https://ibb.co/bwoGhb)

After (https://ibb.co/jfrrFw)

Note  :- You can check, what is creating problem for app-icon in your project by simply changing position of "Copy Bundle Resources" to upward direction.

After trying various solutions like "Asigning color profile (sRGB IEC61966-2.1) to icons" and "CocoaPods solution" stated above, or "Changing App Icon Source name to different asset name in proect setting", I found one very basic solution as follow:

1. Clear your project.
2. Clear derived data at (~/Library/Developer/Xcode/DerivedData/)
3. Go to "Project -> Build Phase"
4. Find "Copy Bundle Resources and drag it as the last item of the list".
5. Uninstall application if it is already there, and run project.

Find screenshot for better understanding.

Before

After

Note: You can check, what is creating problem for app-icon in your project by simply changing position of "Copy Bundle Resources" to upward direction.

After trying various solutions like A**"Asigning color profile (sRGB IEC61966-2.1) to icons"** and "CocoaPods solution" stated above, or "Changing App Icon Source name to different asset name in proect setting", I found one very basic solution as follow:

1. Clear your project.
2. Clear derived data at (~/Library/Developer/Xcode/DerivedData/)
3. Go to "Project -> Build Phase"
4. Find "Copy Bundle Resources and drag it as the last item of the list".
5. Uninstall application if it is already there, and run project.

Find screenshot for better understanding.

Before (https://ibb.co/bwoGhb)

After (https://ibb.co/jfrrFw)

Note :- You can check, what is creating problem for app-icon in your project by simply changing position of "Copy Bundle Resources" to upward direction.

After trying various solutions like "Asigning color profile (sRGB IEC61966-2.1) to icons" and "CocoaPods solution" stated above, or "Changing App Icon Source name to different asset name in proect setting", I found one very basic solution as follow:

1. Clear your project.
2. Clear derived data at (~/Library/Developer/Xcode/DerivedData/)
3. Go to "Project -> Build Phase"
4. Find "Copy Bundle Resources and drag it as the last item of the list".
5. Uninstall application if it is already there, and run project.

Find screenshot for better understanding.

Before (https://ibb.co/bwoGhb)

After (https://ibb.co/jfrrFw)

Note :- You can check, what is creating problem for app-icon in your project by simply changing position of "Copy Bundle Resources" to upward direction.