Has there been a problem with the build since the latest release?
First of all, I apologize for my poor performance.
About two months ago, I took the source of this calculator and succeeded in solving various problems, including dependency. Over time, we updated and loaded the source to build the latest version, and the following error occurred!
junhwa@junhwa-ThinkPad-E555:~/gnome-calculator$ ninja -C build error: Package `gtksourceview-4' not found in specified Vala API directories or GObject-Introspection GIR directories
Clearly, there was no problem building the previous version, and the gtksourceview was installed normally. I tried to solve one dependency on a not for work computer too, but the same thing happened! Again, I apologize for my poor performance and would appreciate it if you could let me know what I should do to solve this problem. Below is the total of the above error messages. My work environment is Ubuntu 18.04.1LTS 64-bit, with alreadyth apt update and apt upgrade.
junhwa@junhwa-ThinkPad-E555:~/gnome-calculator$ ninja -C build
ninja: Entering directory build' [1/42] Compiling Vala source ../lib/mp.../lib/serializer.vala ../lib/unit.vala. FAILED: lib/calculator@sta/mpfr-glue.c lib/calculator@sta/currency.c lib/calculator@sta/equation.c lib/calculator@sta/equation-lexer.c lib/calculator@sta/equation-parser.c lib/calculator@sta/financial.c lib/calculator@sta/function-manager.c lib/calculator@sta/math-equation.c lib/calculator@sta/math-function.c lib/calculator@sta/math-variables.c lib/calculator@sta/number.c lib/calculator@sta/serializer.c lib/calculator@sta/unit.c lib/calculator.h lib/calculator.vapi valac -C --debug --vapidir /home/junhwa/gnome-calculator/vapi --pkg posix /home/junhwa/gnome-calculator/vapi/mpfr.vapi /home/junhwa/gnome-calculator/vapi/mpc.vapi --pkg libxml-2.0 --pkg libsoup-2.4 --pkg gtksourceview-4 --pkg gtk+-3.0 --pkg gobject-2.0 --target-glib ' 2.40.0' --pkg glib-2.0 --pkg gio-2.0 --color=always --directory lib/calculator@sta --basedir ../lib --library calculator --header lib/calculator.h --vapi ../calculator.vapi --target-glib 2.40.0 ../lib/mpfr-glue.vala ../lib/currency.vala ../lib/equation.vala ../lib/equation-lexer.vala ../lib/equation-parser.vala ../lib/financial.vala ../lib/function-manager.vala ../lib/math-equation.vala ../lib/math-function.vala ../lib/math-variables.vala ../lib/number.vala ../lib/serializer.vala ../lib/unit.vala error: Package
gtksourceview-4' not found in specified Vala API directories or GObject-Introspection GIR directories
Compilation failed: 1 error(s), 0 warning(s)
ninja: build stopped: subcommand failed.