Can't install - "You have to install development tools first"

[Eddcapone]

I get "yOu hAvE tO iNsTaLl dEvElOpMeNt tOoLs fIrSt" even though I installed them via apt-get install ruby-dev before gem install mailcatcher

[sj26]

Cool. Maybe install the development tools? Like apt-get install build-essential or whatever is required on your system?

[Eddcapone]

Now I get

ERROR: Error installing mailcatcher: ERROR: Failed to build gem native extension.

current directory: /var/lib/gems/2.5.0/gems/sqlite3-1.4.2/ext/sqlite3

/usr/bin/ruby2.5 -r ./siteconf20200428-3047-ka50ai.rb extconf.rb checking for sqlite3.h... no sqlite3.h is missing. Try 'brew install sqlite3', 'yum install sqlite-devel' or 'apt-get install libsqlite3-dev' and check your shared library search path (the location where your sqlite3 shared library is located). extconf.rb failed Could not create Makefile due to some reason, probably lack of necessary libraries and/or headers. Check the mkmf.log file for more details. You may need configuration options.

The log file contains:

package configuration for sqlite3 is not found find_header: checking for sqlite3.h... -------------------- no

"gcc -o conftest -I/usr/include/x86_64-linux-gnu/ruby-2.5.0 -I/usr/include/ruby-2.5.0/ruby/backward -I/usr/include/ruby-2.5.0 -I. -Wdate-time -D_FORTIFY_SOURCE=2 -g -O2 -fdebug-prefix-map=/build/ruby2.5-FmXXMa/ruby2.5-2.5.5=. -fstack-> checked program was: / begin / 1: #include "ruby.h" 2: 3: int main(int argc, char *argv) 4: { 5: return 0; 6: } / end */

"gcc -E -I/usr/include/x86_64-linux-gnu/ruby-2.5.0 -I/usr/include/ruby-2.5.0/ruby/backward -I/usr/include/ruby-2.5.0 -I. -Wdate-time -D_FORTIFY_SOURCE=2 -g -O2 -fdebug-prefix-map=/build/ruby2.5-FmXXMa/ruby2.5-2.5.5=. -fstack-protector> conftest.c:3:10: fatal error: sqlite3.h: No such file or directory 3 | #include | ^~~ compilation terminated. checked program was: / begin / 1: #include "ruby.h" 2: 3: #include / end /

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I use a fresh Ubuntu 19.10

[sj26]

Sounds like you need the sqlite3 headers, however they are packaged on Ubuntu :-)

[sj26]

The output you posted contains your solution: apt-get install libsqlite3-dev

[Eddcapone]

Thank you! I totally missed it... Now it works :)