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on How to Perform Multisearch in Django Application All About Django Article - Just Another Sharing Site.Anonymous on How to Solve Error Message Failed to execute goal :maven-war-plugin:2.3:war (default-war) on project app: Execution default-war of goal :maven-war-plugin:2.3:war failed: Unable to load the mojo ‘war’ in the plugin ‘:maven-war-plugin:2.3’ due to an API incompatibility: .: null when compiling and building Java Web Application in NetBeans.on How to Use ModelForm to Create a Form for submitting User Input in Django Application when running Django Application - Just Another Sharing Site. How to Solve Error Message ValueError at /save_staff/ Field 'id' expected a number but got ''.on How to Send Input Text from Django Template File to Function exist in Django View using GET method in Django Application How to Use ModelForm to Create a Form for submitting User Input in Django Application - Just Another Sharing Site.SErgio on How to Solve Error Message TemplateSynta圎rror at / ‘mptt_tags’ is not a registered tag library.The execution of the command will bring and redirect the process to the PostgreSQL Command Line Interface. Try to execute the ‘psql’ tool program again in the command line interface as follows data]$ psql -UmyuserĪs it shows in the above output command, the execution of the ‘psql’ tool program is a success. Since the environment variable is already include the ‘psql’ tool, just try to execute it again by typing the following command ~]$ echo ~]$ which postgresql]$Ħ. Don’t forget to display again the environment variable by executing the following command ~]$ echo ~]$ĥ. Just Execute the following command ~]$ source ~]$Ĥ. bashrc file so the new added environment variable will be active. Save the ‘.bashrc’ file and then don’t forget to activate the. Just edit the ‘.bashrc’ file and add the following line in the bottom part of the file :ģ. bashrc file where it exist in the home folder of the current logged-in user. Because the path where the location of ‘psql’ which is in this context ‘/opt/postgresql/bin’ is not exist in the environment variable, just add it. So, make sure to include the path above to the environment variable of the operating system.Ģ. The following is the content of the folder postgresql]$ tree bin -L 1Īs in the above output command execution, there is a file with the name of ‘psql’ inside the postgresql folder. Usually, it exist in the binary folder of the PostgreSQL Database Server’s installation. Just make sure that the ‘psql’ tool program exist in that path. Since the path of the psql tool is actually in this context exist in ‘/opt/postgresql’ for an example. Just type the following command to print the value of it ~]$ echo ~]$Īs it exist in the above output command execution, there is no indication or whatsoever about the PostgreSQL psql tool path. In this article, for an example it is the environment variable with the name of PATH. The first step is checking the existing environment variable of the operating system. So, the following is the actual process or step to solve the problem :ġ. The operating system does not understand how to interpret or to translate it into a certain running process. As seen in the output of the above command execution, the command ‘psql’ is unknown.