Apache Tomcat doesnt start up

apache tomcat 8.5.33 doesn't start up when I double click the startup.bat file from the bin directory.The window opens and closes immediately.
Please help.
Star79Asked:
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David FavorLinux/LXD/WordPress/Hosting SavantCommented:
Refer to your log files + the problem will show up.

There's really no guessing the reason. Better to know (review log files) than guess.

Where your log files exist will depend on how your TomCat instance was installed.
Star79Author Commented:
The log folder is empty.
Thanks.
Rahul ShendeJr. Linux System AdministratorCommented:
install java and set JAVA_HOME
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Star79Author Commented:
Checked: Java jdk 8 installed and JAVA home pointing to the installation root directory
girionisCommented:
Open a command prompt at Tomcat's root folder and run "catalina start". By doing this you will see nay error in the command prompt.
Star79Author Commented:
The issue got resolved the ant_opts value was missing the 'm' for the memory heap size

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