1So, before deleting files, first try to do what the error message in XAMPP
2message panel recommend you to do, using the MySQL backup folder which is
3included with XAMPP. So do the next:
4
5Rename the folder mysql/data to mysql/data_old (you can use any name)
6
7Create a new folder mysql/data
8
9Copy the content that resides in mysql/backup to the new mysql/data folder
10
11Copy all your database folders that are in mysql/data_old to mysql/data
12(skipping the mysql, performance_schema, and phpmyadmin folders from data_old)
13
14Finally copy the ibdata1 file from mysql/data_old and replace it inside
15mysql/data folder
16
17Start MySQL from XAMPP control panel
18
19And, voilà. No databases lost, no ports changed, no run as administrator,
20no force recovery, no kill mysqld process, no restoring from previous versions,
21no more errors.
11. Exit Xampp and navigate to xampp/mysql/data directory
22. delete the ibdata1 file
33. restart the XAMPP server
4
5or
6
71. Exit Xampp and navigate to xampp/mysql/data directory
82. delete the ibdata1, ib_logfile0,ib_logfile1,ib_logfile101 files
93. restart the XAMPP server
10
11or
12
13Try to check the error log at the installed location: /xampp/mysql/data/mysql_error.log
14This can help you better debug the problem.
15Also Note:
16
171. XAMPP might hit into port issue when you have skype also running.
182. There is a federated plugin issue that is common.
1Instead, first try using the MySQL backup folder which is included with XAMPP. So do the next:
2
31.Rename the folder mysql/data to mysql/data_old (you can use any name)
42.Create a new folder mysql/data
53.Copy the content that resides in mysql/backup to the new mysql/data folder
64.Copy all your database folders that are in mysql/data_old to mysql/data (skipping the mysql, performance_schema, and phpmyadmin folders from data_old)
75.Finally copy the ibdata1 file from mysql/data_old and replace it inside mysql/data folder
86.Start MySQL from XAMPP control panel
9And, voilà!
11. Exit Xampp and navigate to xampp/mysql/data directory
22. delete the ibdata1 file
33. restart the XAMPP server
4
5or
6
71. Exit Xampp and navigate to xampp/mysql/data directory
82. delete the ibdata1, ib_logfile0,ib_logfile1,ib_logfile101 files
93. restart the XAMPP server
10
11or
12
13Try to check the error log at the installed location: /xampp/mysql/data/mysql_error.log
1Stop there! Please do not delete anything!
2
3Some of the answers in Stackoverflow or in other platform could leave completely unusable your database!, so, before deleting files, first try to do what the error message in XAMPP message panel recommend you to do, using the MySQL backup folder which is included with XAMPP. So do the next:
4
5Step 1. Rename the folder c:\xampp\mysql\data to c:\xampp\mysql\data_old (you can use any name).
6
7Step 2. Create a new folder c:\xampp\mysql/data.
8
9Step 3. Copy the content that resides in mysql\backup to the new mysql\data folder.
10
11Step 4. Copy all your database folders that are in mysql\data_old to mysql\data (skipping the mysql, performance_schema, and phpmyadmin folders from data_old).
12
13Step 5. Finally copy the ibdata1 file from mysql\data_old and replace it inside mysql\data folder.
14
15Step 6. Start MySQL from XAMPP control panel.
16
17And, Its DONE . No databases lost, no ports changed, no run as administrator, no force recovery, no kill mysqld process, no restoring from previous versions, no more errors.
1go to Xampp and navigate to xampp/mysql/data directory
2delete all files and dir
3and paste files in backup directory