Run (Get-SPSolution solutionname.wsp).Delete() in Sharepoint Management Shell.

You can find your SolutionName using:

Get-spsolutions

You can also use:

Get-SPSolution | select * | out-file c:\solutions.txt

This will list all solutions, properties and output them to a file called solutions.txt. This may solve your problems.

Run (Get-SPSolution solutionname.wsp).Delete() in Sharepoint Management Shell.

You can find your SolutionName using:

Get-SPSolution

You can also use:

Get-SPSolution | select * | out-file c:\solutions.txt

This will list all solutions, properties and output them to a file called solutions.txt. This may solve your problems.

(Get-SPSolution solutionname.wsp).Delete() use this it will solve your problem

Run (Get-SPSolution solutionname.wsp).Delete() in Sharepoint Management Shell.

You can find your SolutionName using:

Get-spsolutions

You can also use:

Get-SPSolution | select * | out-file c:\solutions.txt

This will list all solutions, properties and output them to a file called solutions.txt. This may solve your problems.