[daniel222]

It says "Failed to find a new game client. Please ensure you have the official RuneScape Legacy client installed, as opposed to the NXT client. For more information see the RuneMate Walkthrough.

I have already installed the Runescape Legacy client

 

[american express]

RuneMate client:

Help > View Logs

Post the most recent log files here.

I suggest you uninstall and reinstall the legacy client and see if that helps.

 

[daniel222]

I tried uninstall and reinstall, still dont work.

 

[party]

Unable to attach to 64-bit process
com.sun.tools.attach.AttachNotSupportedException: Unable to attach to 64-bit process

Read the walkthrough.

 

[rob]

Unable to attach to 64-bit process
com.sun.tools.attach.AttachNotSupportedException: Unable to attach to 64-bit process

Read the walkthrough.

this randomly started happening to me as well
 
I can't seem to get it to work

any fix?

 

[american express]

If you read the walk through, you would see it clearly states:

RuneMate and the game client need to both run on x32 bit Java. Remove any x64 bit Java installations and RuneMate, and then install RuneMate again – it will automatically download the correct x32 bit Java version and everything will work.